Cylinder Works

Discover Cylinder Works motorcycle cylinder kits and top-end engine repair components.

145 products

  • Cylinder 78mm Bore Kawasaki KX 250 F 21-26 Cylinderworks CW30017 Cylinder 78mm Bore Kawasaki KX 250 F 21-26 Cylinderworks CW30017

    Cylinder Works Cylinder 78mm Bore Kawasaki KX 250 F 21-26 Cylinderworks CW30017

    1 in stock 1-2 business days

    Standard bore cylinder for Kawasaki KX 250 F and KX 250 X models. This replacement cylinder is designed for 78 mm bore 250 cc 4-stroke engine applications and fits models from 2021 to 2026. The cylinder includes precision machine-cut intake valve cut-outs and is supplied as Cylinder Works part number CW30017. Features Standard bore replacement cylinder Fits Kawasaki KX 250 F and KX 250 X models Includes precision machine-cut intake valve cut-outs for intake airflow Specifications Compression ratio: 14.1:1 Cylinder diameter: 78 mm Cylinder kit type: standard bore Displacement: 250 cc Engine type: 4-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW30017 Vehicle Fitments Kawasaki KX 250 F (2021-2026) Kawasaki KX 250 X (2021-2026)

    1 in stock 1-2 business days

    £328.00

  • Cylinder Kit 78mm Bore Kawasaki KX 250 F 23-24 Cylinderworks CW30017K02 Cylinder Kit 78mm Bore Kawasaki KX 250 F 23-24 Cylinderworks CW30017K02

    Cylinder Works Cylinder Kit 78mm Bore Kawasaki KX 250 F 23-24 Cylinderworks CW30017K02

    1 in stock 1-2 business days

    Standard bore cylinder kit for Kawasaki KX 250 F and KX 250 X models. This kit is designed for 78 mm bore 250 cc 4-stroke engine applications for 2023 to 2024 models. The cylinder includes precision machine-cut intake valve cut-outs and is supplied as Cylinder Works part number CW30017K02, using Vertex piston reference 24628B. Features Standard bore cylinder kit Fits Kawasaki KX 250 F and KX 250 X models Includes precision machine-cut intake valve cut-outs for intake airflow Specifications Uses Vertex #24628B Compression ratio: 14.1:1 Cylinder diameter: 78 mm Cylinder kit type: standard bore Displacement: 250 cc Engine type: 4-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW30017K02 Vehicle Fitments Kawasaki KX 250 F (2023-2024) Kawasaki KX 250 X (2023-2024)

    1 in stock 1-2 business days

    £557.73

  • Cylinder Kit 78mm Bore Kawasaki KX 250 F 21-22 Cylinderworks CW30017K01 Cylinder Kit 78mm Bore Kawasaki KX 250 F 21-22 Cylinderworks CW30017K01

    Cylinder Works Cylinder Kit 78mm Bore Kawasaki KX 250 F 21-22 Cylinderworks CW30017K01

    1 in stock 1-2 business days

    Standard bore cylinder kit for Kawasaki KX 250 F and KX 250 X models. This kit includes the cylinder, piston kit and top end gasket kit, and is designed for 78 mm bore 250 cc 4-stroke engine applications for 2021 to 2022 models. The cylinder includes precision machine-cut intake valve cut-outs and is supplied as Cylinder Works part number CW30017K01, using Vertex piston reference 24509B. Features Standard bore cylinder kit Includes cylinder, piston kit and top end gasket kit Fits Kawasaki KX 250 F and KX 250 X models Includes precision machine-cut intake valve cut-outs for intake airflow Specifications Uses Vertex #24509B Compression ratio: 14.1:1 Cylinder diameter: 78 mm Cylinder kit type: standard bore Displacement: 250 cc Engine type: 4-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW30017K01 Vehicle Fitments Kawasaki KX 250 F (2021-2022) Kawasaki KX 250 X (2021-2022)

    1 in stock 1-2 business days

    £557.73

  • Cylinder 95mm Bore KTM Gas Husq 500 Cylinderworks CW50010 Cylinder 95mm Bore KTM Gas Husq 500 Cylinderworks CW50010

    Cylinder Works Cylinder 95mm Bore KTM Gas Husq 500 Cylinderworks CW50010

    1 in stock 1-2 business days

    Standard bore cylinder for 510 cc 4-stroke KTM, GasGas and Husqvarna enduro models. This replacement cylinder is designed for 95 mm bore engine applications and suits a range of EXC-F, XCF-W, EC F, ES, FE 501 and FE 501 W models across multiple model years. Cylinder Works part number CW50010 is intended for standard bore replacement use. Features Standard bore replacement cylinder Suitable for 510 cc 4-stroke engines Fits selected KTM 500 EXC-F, 500 EXC-F Six Days and 500 XCF-W models Fits selected GasGas EC 500 F and ES 500 models Fits selected Husqvarna FE 501, FE 501 S, FE 501 S Heritage Edition and FE 501 W models Specifications Cylinder diameter: 95 mm Cylinder kit type: standard bore Displacement: 510 cc Engine type: 4-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW50010 Vehicle Fitments KTM 500 EXC-F (2017-2024) KTM 500 EXC-F [510cc] (2025) KTM 500 EXC-F Six Days (2020-2023) KTM 500 EXC-F Six Days [510cc] (2025) KTM 500 XCF-W (2020-2022) GasGas EC 500 F (2024) GasGas EC 500 F [510cc] (2025) GasGas ES 500 (2025) GasGas ES 500 [510cc] (2024) Husqvarna FE 501 (2017-2024) Husqvarna FE 501 S (2020-2024) Husqvarna FE 501 S [510cc] (2025) Husqvarna FE 501 S Heritage Edition [510cc] (2025) Husqvarna FE 501 W (2024)

    1 in stock 1-2 business days

    £491.23

  • Cylinder Kit 95mm Bore KTM Gas Husq 500 Cylinderworks CW50010K01 Cylinder Kit 95mm Bore KTM Gas Husq 500 Cylinderworks CW50010K01

    Cylinder Works Cylinder Kit 95mm Bore KTM Gas Husq 500 Cylinderworks CW50010K01

    1 in stock 1-2 business days

    Standard bore cylinder kit for 510 cc 4-stroke KTM and Husqvarna enduro models. This kit includes the cylinder, piston kit and top end gasket kit, and is designed for 95 mm bore engine applications across a range of EXC-F, XCF-W, FE 501 and FE 501 S models. Cylinder Works part number CW50010K01 uses Vertex piston reference 23762. Features Standard bore cylinder kit Includes cylinder, piston kit and top end gasket kit Suitable for 510 cc 4-stroke engines Fits selected KTM 500 EXC-F, 500 EXC-F Six Days and 500 XCF-W models Fits selected Husqvarna FE 501 and FE 501 S models Specifications Uses Vertex #23762 Compression ratio: 11.8:1 Cylinder diameter: 95 mm Cylinder kit type: standard bore Displacement: 510 cc Engine type: 4-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW50010K01 Vehicle Fitments KTM 500 EXC-F (2017-2022) KTM 500 EXC-F Six Days (2020-2022) KTM 500 XCF-W (2020-2022) Husqvarna FE 501 (2017-2022) Husqvarna FE 501 S (2020-2022)

    1 in stock 1-2 business days

    £758.00

  • Cylinder 95mm Bore KTM Gas Husq 450 Cylinderworks CW50009 Cylinder 95mm Bore KTM Gas Husq 450 Cylinderworks CW50009

    Cylinder Works Cylinder 95mm Bore KTM Gas Husq 450 Cylinderworks CW50009

    1 in stock 1-2 business days

    Standard bore cylinder for 450 cc 4-stroke KTM, GasGas and Husqvarna motocross, cross-country and supermoto models. This replacement cylinder is designed for 95 mm bore engine applications and suits a range of SX-F, XC-F, SMR, EX F, MC F, FC, FS and FX 450 models across multiple model years. Cylinder Works part number CW50009 is intended for standard bore replacement use. Features Standard bore replacement cylinder Suitable for 450 cc 4-stroke engines Fits selected KTM 450 SMR, 450 SX-F, 450 SX-F Factory and 450 XC-F models Fits selected GasGas EX 450 F and MC 450 F models Fits selected Husqvarna FC 450, FS 450 and FX 450 models Specifications Cylinder diameter: 95 mm Cylinder kit type: standard bore Displacement: 450 cc Engine type: 4-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW50009 Vehicle Fitments KTM 450 SMR (2021-2022) KTM 450 SX-F (2016-2023) KTM 450 SX-F Factory (2015-2021) KTM 450 XC-F (2016-2023) GasGas EX 450 F (2021-2023) GasGas MC 450 F (2021-2023) Husqvarna FC 450 (2016-2022) Husqvarna FS 450 (2016-2022) Husqvarna FX 450 (2017-2022)

    1 in stock 1-2 business days

    £470.51

  • Cylinder Kit 95mm Bore KTM Gas Husq 450 Cylinderworks CW50009K01 Cylinder Kit 95mm Bore KTM Gas Husq 450 Cylinderworks CW50009K01

    Cylinder Works Cylinder Kit 95mm Bore KTM Gas Husq 450 Cylinderworks CW50009K01

    1 in stock 1-2 business days

    Standard bore cylinder kit for 450 cc 4-stroke KTM, GasGas and Husqvarna motocross, cross-country and supermoto models. This kit includes the cylinder, piston kit and top end gasket kit, and is designed for 95 mm bore engine applications across a range of SX-F, XC-F, SMR, EX F, MC F, FC, FS and FX 450 models. Cylinder Works part number CW50009K01 uses Vertex piston reference 24099. Features Standard bore cylinder kit Includes cylinder, piston kit and top end gasket kit Suitable for 450 cc 4-stroke engines Fits selected KTM 450 SMR, 450 SX-F, 450 SX-F Factory and 450 XC-F models Fits selected GasGas EX 450 F and MC 450 F models Fits selected Husqvarna FC 450, FS 450 and FX 450 models Specifications Uses Vertex #24099 Compression ratio: 12.75:1 Cylinder diameter: 95 mm Cylinder kit type: standard bore Displacement: 450 cc Engine type: 4-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW50009K01 Vehicle Fitments KTM 450 SMR (2021-2022) KTM 450 SX-F (2016-2022) KTM 450 SX-F Factory (2015-2020) KTM 450 XC-F (2016-2022) GasGas EX 450 F (2021-2022) GasGas MC 450 F (2021-2022) Husqvarna FC 450 (2016-2022) Husqvarna FS 450 (2016-2022) Husqvarna FX 450 (2017-2022)

    1 in stock 1-2 business days

    £728.67

  • Cylinder 88mm Bore KTM Gas Husq 350 Cylinderworks CW50008 Cylinder 88mm Bore KTM Gas Husq 350 Cylinderworks CW50008

    Cylinder Works Cylinder 88mm Bore KTM Gas Husq 350 Cylinderworks CW50008

    1 in stock 1-2 business days

    Standard bore cylinder for 350 cc 4-stroke KTM, GasGas and Husqvarna off-road and motocross models. This replacement cylinder is designed for 88 mm bore engines and suits a range of EXC-F, SX-F, XC-F, XCF-W, EC F, EX F, MC F, FC, FE and FX 350 applications across multiple model years. Cylinder Works part number CW50008 is intended for standard bore replacement use. Features Standard bore replacement cylinder Suitable for 350 cc 4-stroke engines Fits selected KTM 350 EXC-F, 350 SX-F, 350 XC-F and 350 XCF-W models Fits selected GasGas EC 350 F, EX 350 F and MC 350 F models Fits selected Husqvarna FC 350, FE 350, FE 350 S and FX 350 models Specifications Cylinder diameter: 88 mm Cylinder kit type: standard bore Displacement: 350 cc Engine type: 4-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW50008 Vehicle Fitments KTM 350 EXC-F (2020-2023) KTM 350 SX-F (2019-2022) KTM 350 XC-F (2019-2022) KTM 350 XCF-W (2020-2022) GasGas EC 350 F (2021-2023) GasGas EX 350 F (2021-2023) GasGas MC 350 F (2022-2023) Husqvarna FC 350 (2019-2022) Husqvarna FE 350 (2020-2023) Husqvarna FE 350 S (2020-2023) Husqvarna FX 350 (2019-2022)

    1 in stock 1-2 business days

    £460.67

  • Cylinder Kit 88mm Bore KTM Gas Husq 350 Cylinderworks CW50008K02 Cylinder Kit 88mm Bore KTM Gas Husq 350 Cylinderworks CW50008K02

    Cylinder Works Cylinder Kit 88mm Bore KTM Gas Husq 350 Cylinderworks CW50008K02

    1 in stock 1-2 business days

    Standard bore cylinder kit for 350 cc 4-stroke KTM, GasGas and Husqvarna off-road and motocross models. This kit includes the cylinder, piston kit and top end gasket kit, and is designed for 88 mm bore engine applications across a range of EXC-F, SX-F, XC-F, XCF-W, EC F, EX F, MC F, FC, FE and FX 350 models. Cylinder Works part number CW50008K02 is intended for standard bore replacement use. Features Standard bore cylinder kit Includes cylinder, piston kit and top end gasket kit Suitable for 350 cc 4-stroke engines Fits selected KTM 350 EXC-F, 350 SX-F, 350 XC-F and 350 XCF-W models Fits selected GasGas EC 350 F, EX 350 F and MC 350 F models Fits selected Husqvarna FC 350, FE 350, FE 350 S and FX 350 models Specifications Compression ratio: 14.0:1 Cylinder diameter: 88 mm Cylinder kit type: standard bore Displacement: 350 cc Engine type: 4-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW50008K02 Vehicle Fitments KTM 350 EXC-F (2020-2022) KTM 350 SX-F (2019-2022) KTM 350 XC-F (2019-2022) KTM 350 XCF-W (2020-2022) GasGas EC 350 F (2021-2022) GasGas EX 350 F (2021-2022) GasGas MC 350 F (2022) Husqvarna FC 350 (2019-2022) Husqvarna FE 350 (2020-2022) Husqvarna FE 350 S (2020-2022) Husqvarna FX 350 (2019-2022)

    1 in stock 1-2 business days

    £750.27

  • Cylinder 39.5mm Bore KTM SX50 Mc 50 Tc 50 Cylinderworks CW50012 45230038000 Cylinder 39.5mm Bore KTM SX50 Mc 50 Tc 50 Cylinderworks CW50012 45230038000

    Cylinder Works Cylinder 39.5mm Bore KTM SX50 Mc 50 Tc 50 Cylinderworks CW50012 45230038000

    1 in stock 1-2 business days

    Standard bore cylinder for 50 cc 2-stroke KTM, Husqvarna and GasGas mini motocross models. This replacement cylinder is designed for use on 39.5 mm bore engines and suits a range of SX, MC and TC 50 applications across multiple model years. Cylinder Works part number CW50012 cross-references to OEM part number 45230038000. Features Standard bore replacement cylinder Suitable for 50 cc 2-stroke engines Fits selected KTM 50 SX, 50 SX Mini, 50 SX PRO JR and 50 SXS models Fits selected GasGas MC 50 models Fits selected Husqvarna TC 50 and TC 50 Mini models Specifications Cylinder diameter: 39.500 mm Cylinder kit type: standard bore Displacement: 50 cc Engine type: 2-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW50012 OEM: 45230038000 Vehicle Fitments KTM 50 SX (2009-2023) KTM 50 SX Mini (2009-2023) KTM 50 SX PRO JR (2009) KTM 50 SXS (2011-2014) GasGas MC 50 (2021-2023) Husqvarna TC 50 (2017-2023) Husqvarna TC 50 Mini (2018-2023)

    1 in stock 1-2 business days

    £380.13

  • Cylinder Kit 39.5mm Bore KTM SX50 Mc 50 Tc 50 Cylinderworks CW50012K01 45230038000 Cylinder Kit 39.5mm Bore KTM SX50 Mc 50 Tc 50 Cylinderworks CW50012K01 45230038000

    Cylinder Works Cylinder Kit 39.5mm Bore KTM SX50 Mc 50 Tc 50 Cylinderworks CW50012K01 45230038000

    1 in stock 1-2 business days

    Standard bore cylinder kit for 50 cc 2-stroke KTM, Husqvarna and GasGas mini motocross models. This kit includes the cylinder, piston kit and top-end gasket kit, and is designed for 39.5 mm bore engine applications across a range of SX, MC and TC 50 models. Cylinder Works part number CW50012K01 cross-references to OEM part number 45230038000 and uses Vertex piston reference 23429. Features Standard bore cylinder kit Includes cylinder, piston kit and top-end gasket kit Suitable for 50 cc 2-stroke engines Fits selected KTM 50 SX, 50 SX Mini, 50 SX PRO JR and 50 SXS models Fits selected GasGas MC 50 models Fits selected Husqvarna TC 50 and TC 50 Mini models Specifications Uses Vertex #23429 Compression ratio: STD Cylinder diameter: 39.500 mm Cylinder kit type: standard bore Displacement: 50 cc Engine type: 2-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW50012K01 OEM: 45230038000 Vehicle Fitments KTM 50 SX (2009-2023) KTM 50 SX Mini (2009-2023) KTM 50 SX PRO JR (2009) KTM 50 SXS (2011-2014) GasGas MC 50 (2021-2023) Husqvarna TC 50 (2017-2023) Husqvarna TC 50 Mini (2018-2023)

    1 in stock 1-2 business days

    £460.67

  • Cylinder Kit KTM SX85 18-25 47.00 47230038000, Cylinder Works 50013K01

    Cylinder Works Cylinder Kit KTM SX85 18-25 47.00 47230038000, Cylinder Works 50013K01

    2 in stock 1-2 business days

    A standard-bore 47 mm cylinder kit for 85 cc two-cycle minis, supplied complete with cylinder, piston kit, top-end gasket kit, and wrist pin bearing. Designed as a direct replacement for KTM SX 85 and equivalent GasGas MC 85 and Husqvarna TC 85 applications within the specified model years, with cross-reference to KTM 47230038000 and Cylinder Works 50013K01. Features Supplied with Vertex piston #24212 Complete top-end service kit contents: cylinder, piston kit, top-end gasket kit, and wrist pin bearing Standard-bore replacement configuration Specifications Compression ratio: Standard Cylinder diameter: 47 mm Cylinder kit type: Standard bore Displacement: 85 cc Engine type: 2-cycle Cross-Reference OEM Part Numbers 47230038000 Cylinder Works 50013K01 Vehicle Fitments 85 SX (18–25) 85 SX BW (18–25) MC 85 1714 (22–25) MC 85 1916 (21–25) TC 85 (18–25) TC 85 BW (18–25)

    2 in stock 1-2 business days

    £859.94

  • Cylinder 81mm KTM 250 Sx-f Exc-f 23-26 Cylinder Works CW50015 Std Bore Cylinder 81mm KTM 250 Sx-f Exc-f 23-26 Cylinder Works CW50015 Std Bore

    Cylinder Works Cylinder 81mm KTM 250 Sx-f Exc-f 23-26 Cylinder Works CW50015 Std Bore

    1 in stock 1-2 business days

    The Cylinder Works standard bore cylinder is designed for KTM, Husqvarna, and GasGas 250 cc 4-stroke models, providing a direct replacement cylinder that maintains original engine displacement and performance. Features Replacement cylinder for 250 cc 4-stroke engines Maintains standard bore and original engine configuration Direct replacement compatible with OEM components Suitable for top-end repairs and rebuilds Designed for consistent operation under demanding conditions Specifications Bore diameter: 81 mm Displacement: 250 cc Engine type: 4-cycle Kit type: standard bore Kit contents: cylinder Part number: CW50015 Vehicle Fitments KTM 250 EXC-F (2024–2025) KTM 250 EXC-F Six Days (2024–2025) KTM 250 SX-F (2023–2025) KTM 250 SX-F Adamo Edition (2025) KTM 250 SX-F Factory (2022, 2024–2025) KTM 250 XC-F (2023–2025) GasGas EC 250 F (2024–2025) GasGas EX 250 F (2024–2025) GasGas MC 250 F (2024–2025) GasGas MC 250 F Factory Edition (2023–2025) Husqvarna FC 250 (2023–2025) Husqvarna FC 250 Heritage Edition (2023) Husqvarna FC 250 Rockstar Edition (2022, 2024) Husqvarna FE 250 (2024–2025) Husqvarna FE 250 Heritage Edition (2025)

    1 in stock 1-2 business days

    £485.88

  • Cylinder Kit 81mm KTM 250 Sx-f Exc-f 23-26 Cylinder Works CW50015K01 Std Bore Cylinder Kit 81mm KTM 250 Sx-f Exc-f 23-26 Cylinder Works CW50015K01 Std Bore

    Cylinder Works Cylinder Kit 81mm KTM 250 Sx-f Exc-f 23-26 Cylinder Works CW50015K01 Std Bore

    1 in stock 1-2 business days

    The Cylinder Works standard bore cylinder kit is engineered for KTM, Husqvarna, and GasGas 250 cc 4-stroke models, providing a complete top-end rebuild solution that maintains original engine performance and displacement. Supplied with a matched piston kit and top-end gasket set, this kit ensures compatibility with OEM configurations and is suitable for routine rebuilds and high-performance applications. Features Complete cylinder, piston, and gasket kit for 250 cc 4-stroke engines Maintains standard bore and original engine configuration Direct replacement compatible with OEM components Designed for top-end engine rebuilds Suitable for multiple KTM, Husqvarna, and GasGas models Provides consistent operation under demanding riding conditions Specifications Bore diameter: 81 mm Compression ratio: 14.5:1 Displacement: 250 cc Engine type: 4-cycle Piston compatibility: Vertex piston #24615A Kit type: standard bore Kit contents: cylinder, piston kit, top-end gasket kit Part number: CW50015K01 Vehicle Fitments KTM 250 EXC-F (2024–2025) KTM 250 EXC-F Six Days (2024–2025) KTM 250 SX-F (2023–2025) KTM 250 SX-F Adamo Edition (2025) KTM 250 SX-F Factory (2022, 2024) KTM 250 XC-F (2023–2025) GasGas EC 250 F (2024–2025) GasGas EX 250 F (2024–2025) GasGas MC 250 F (2024–2025) GasGas MC 250 F Factory Edition (2023–2025) Husqvarna FC 250 (2023, 2024, 2025) Husqvarna FC 250 Heritage Edition (2023) Husqvarna FC 250 Rockstar Edition (2022, 2024) Husqvarna FE 250 (2024–2025) Husqvarna FE 250 Heritage Edition (2025)

    1 in stock 1-2 business days

    £773.41

  • Cylinder Kit 99mm Yamaha YZ 450 F 20-22 Cylinder Works CW21014K01 Big Bore Cylinder Kit 99mm Yamaha YZ 450 F 20-22 Cylinder Works CW21014K01 Big Bore

    Cylinder Works Cylinder Kit 99mm Yamaha YZ 450 F 20-22 Cylinder Works CW21014K01 Big Bore

    1 in stock 1-2 business days

    Cylinder Works big bore cylinder kit for Yamaha 450 models, designed as a replacement top-end assembly for 4-cycle engines with increased displacement to 470 cc. This kit includes the cylinder, piston kit, and top-end gasket kit, and is specified with a 99 mm cylinder diameter, 13.0:1 compression ratio, 2.00 mm oversize, and compatibility with Vertex piston reference 24461. Features Big bore cylinder kit Replacement top-end assembly Includes cylinder, piston kit, and top-end gasket kit Uses Vertex #24461 Specifications Cylinder diameter: 99 mm Compression ratio: 13.0:1 Displacement: 470 cc Engine type: 4-cycle Cylinder kit type: big bore Size over standard: 2.00 mm Vehicle Fitments Yamaha WR 450 F (2021-2023) Yamaha YZ 450 F (2020-2022) Yamaha YZ 450 FX (2021-2023)

    1 in stock 1-2 business days

    £678.59

  • Cylinder Only 97mm Yamaha YZ 450 F 20-22 Cylinder Works CW20014 Cylinder Only 97mm Yamaha YZ 450 F 20-22 Cylinder Works CW20014

    Cylinder Works Cylinder Only 97mm Yamaha YZ 450 F 20-22 Cylinder Works CW20014

    1 in stock 1-2 business days

    Cylinder Works standard bore cylinder for Yamaha 450 models, intended as a replacement cylinder for 4-cycle 450 cc engines. This standard bore unit is specified with a 97 mm cylinder diameter and is suitable for the listed WR 450 F, YZ 450 F, and YZ 450 FX applications. Features Standard bore cylinder Replacement cylinder for top-end engine servicing Specifications Cylinder diameter: 97 mm Displacement: 450 cc Engine type: 4-cycle Cylinder kit type: standard bore Vehicle Fitments Yamaha WR 450 F (2021-2023) Yamaha YZ 450 F (2020-2022) Yamaha YZ 450 FX (2021-2023)

    1 in stock 1-2 business days

    £370.32

  • Cylinder Kit 97mm Yamaha YZ 450 F 20-22 Cylinder Works CW20014K01 Cylinder Kit 97mm Yamaha YZ 450 F 20-22 Cylinder Works CW20014K01

    Cylinder Works Cylinder Kit 97mm Yamaha YZ 450 F 20-22 Cylinder Works CW20014K01

    1 in stock 1-2 business days

    Cylinder Works standard bore cylinder kit for Yamaha 450 models, designed as a replacement top-end assembly for 4-cycle 450 cc engines. This kit includes the cylinder, piston kit, and top-end gasket kit, and is specified with a 97 mm cylinder diameter, 13.0:1 compression ratio, and compatibility with Vertex piston reference 24448. Features Standard bore cylinder kit Replacement top-end assembly Includes cylinder, piston kit, and top-end gasket kit Uses Vertex #24448 Specifications Cylinder diameter: 97 mm Compression ratio: 13.0:1 Displacement: 450 cc Engine type: 4-cycle Cylinder kit type: standard bore Vehicle Fitments Yamaha WR 450 F (2021-2023) Yamaha YZ 450 F (2020-2022) Yamaha YZ 450 FX (2021-2023)

    1 in stock 1-2 business days

    £596.56

  • Cylinder Kit 80mm Yamaha YZ 250 F 19-24 Cylinder Works CW21013K01 Big Bore Cylinder Kit 80mm Yamaha YZ 250 F 19-24 Cylinder Works CW21013K01 Big Bore

    Cylinder Works Cylinder Kit 80mm Yamaha YZ 250 F 19-24 Cylinder Works CW21013K01 Big Bore

    1 in stock 1-2 business days

    Cylinder Works big bore cylinder kit for Yamaha 250 models, designed as a replacement top-end assembly for 4-cycle engines with increased displacement to 270 cc. This kit includes the cylinder, piston kit, and top-end gasket kit, and is specified with an 80 mm cylinder diameter, 13.8:1 compression ratio, 3.00 mm oversize, and compatibility with Vertex piston reference 24405. Features Big bore cylinder kit Replacement top-end assembly Includes cylinder, piston kit, and top-end gasket kit Uses Vertex #24405 Specifications Cylinder diameter: 80 mm Compression ratio: 13.8:1 Displacement: 270 cc Engine type: 4-cycle Cylinder kit type: big bore Size over standard: 3.00 mm Vehicle Fitments Yamaha WR 250 F (2020-2024) Yamaha YZ 250 F (2019-2024) Yamaha YZ 250 FX (2020-2024)

    1 in stock 1-2 business days

    £714.00

  • Cylinder Only 77mm Yamaha YZ 250 F 19-26 Cylinder Works CW20013 Cylinder Only 77mm Yamaha YZ 250 F 19-26 Cylinder Works CW20013

    Cylinder Works Cylinder Only 77mm Yamaha YZ 250 F 19-26 Cylinder Works CW20013

    1 in stock 1-2 business days

    Cylinder Works standard bore cylinder for Yamaha 250 models, intended as a replacement cylinder for 4-cycle 250 cc engines. This standard bore unit is specified with a 77 mm cylinder diameter and is suitable for the listed WR 250 F, YZ 250 F, and YZ 250 FX applications. Features Standard bore cylinder Replacement cylinder for top-end engine servicing Specifications Cylinder diameter: 77 mm Displacement: 250 cc Engine type: 4-cycle Cylinder kit type: standard bore Vehicle Fitments Yamaha WR 250 F (2020-2026) Yamaha YZ 250 F (2019-2026) Yamaha YZ 250 FX (2020-2026)

    1 in stock 1-2 business days

    £346.16

  • Cylinder Kit 77mm Yamaha YZ 250 F 19-24 Cylinder Works CW20013K01 Cylinder Kit 77mm Yamaha YZ 250 F 19-24 Cylinder Works CW20013K01

    Cylinder Works Cylinder Kit 77mm Yamaha YZ 250 F 19-24 Cylinder Works CW20013K01

    1 in stock 1-2 business days

    Cylinder Works standard bore cylinder kit for Yamaha 250 models, designed as a replacement top-end assembly for 4-cycle 250 cc engines. This kit includes the cylinder, piston kit, and top-end gasket kit, and is specified with a 77 mm cylinder diameter, 13.8:1 compression ratio, and compatibility with Vertex piston reference 24371. Features Standard bore cylinder kit Replacement top-end assembly Includes cylinder, piston kit, and top-end gasket kit Uses Vertex #24371 Specifications Cylinder diameter: 77 mm Compression ratio: 13.8:1 Displacement: 250 cc Engine type: 4-cycle Cylinder kit type: standard bore Vehicle Fitments Yamaha WR 250 F (2020-2024) Yamaha YZ 250 F (2019-2024) Yamaha YZ 250 FX (2020-2024)

    1 in stock 1-2 business days

    £574.11

  • Cylinder 47.50mm Bore Yamaha YZ 85 02-18 Cylinderworks CW20015 Cylinder 47.50mm Bore Yamaha YZ 85 02-18 Cylinderworks CW20015

    Cylinder Works Cylinder 47.50mm Bore Yamaha YZ 85 02-18 Cylinderworks CW20015

    1 in stock 1-2 business days

    Standard bore cylinder for Yamaha YZ 85 models. This replacement cylinder is designed for 47.50 mm bore 85 cc 2-stroke engine applications and fits YZ 85 models from 2002 to 2018. Cylinder Works part number CW20015 is intended for standard bore replacement use. Features Standard bore replacement cylinder Suitable for 85 cc 2-stroke engines Fits Yamaha YZ 85 models Specifications Cylinder diameter: 47.500 mm Cylinder kit type: standard bore Displacement: 85 cc Engine type: 2-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW20015 Vehicle Fitments Yamaha YZ 85 (2002-2018)

    1 in stock 1-2 business days

    £486.91

  • Cylinder Kit 47.50mm Bore Yamaha YZ 85 02-18 Cylinderworks CW20015K01 Cylinder Kit 47.50mm Bore Yamaha YZ 85 02-18 Cylinderworks CW20015K01

    Cylinder Works Cylinder Kit 47.50mm Bore Yamaha YZ 85 02-18 Cylinderworks CW20015K01

    1 in stock 1-2 business days

    Standard bore cylinder kit for Yamaha YZ 85 models. This kit includes the cylinder, piston kit, top end gasket kit and wrist pin bearing, and is designed for 47.50 mm bore 85 cc 2-stroke engine applications. Cylinder Works part number CW20015K01 uses Vertex piston reference 24370 and fits YZ 85 models from 2002 to 2018. Features Standard bore cylinder kit Includes cylinder, piston kit, top end gasket kit and wrist pin bearing Suitable for 85 cc 2-stroke engines Fits Yamaha YZ 85 models Specifications Uses Vertex #24370 Compression ratio: STD Cylinder diameter: 47.500 mm Cylinder kit type: standard bore Displacement: 85 cc Engine type: 2-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW20015K01 Vehicle Fitments Yamaha YZ 85 (2002-2018)

    1 in stock 1-2 business days

    £562.88

  • Cylinder 72mm Bore KTM Gas Husq 300 Cylinderworks CW50011 55630038000 Cylinder 72mm Bore KTM Gas Husq 300 Cylinderworks CW50011 55630038000

    Cylinder Works Cylinder 72mm Bore KTM Gas Husq 300 Cylinderworks CW50011 55630038000

    1 in stock 1-2 business days

    Standard bore cylinder for 300 cc 2-stroke KTM, GasGas and Husqvarna off-road models. This replacement cylinder is designed for 72 mm bore engines and suits a range of EXC, XC, XC-W, EC, EX, TE and TX 300 applications across multiple model years. Cylinder Works part number CW50011 cross-references to OEM part number 55630038000. Features Standard bore replacement cylinder Suitable for 300 cc 2-stroke engines Fits selected KTM 300 EXC TPI, 300 XC TPI and 300 XC-W TPI models Fits selected GasGas EC 300 and EX 300 models Fits selected Husqvarna TE 300 i, TE 300 Heritage Edition and TX 300 i models Specifications Cylinder diameter: 72 mm Cylinder kit type: standard bore Displacement: 300 cc Engine type: 2-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW50011 OEM: 55630038000 Vehicle Fitments KTM 300 EXC TPI (2020-2022) KTM 300 EXC TPI ERZBERGRODEO (2022) KTM 300 XC TPI (2020-2022) KTM 300 XC-W TPI (2020-2023) KTM 300 XC-W TPI ERZBERGRODEO (2020-2023) KTM 300 XC-W TPI Six Days (2020-2021) GasGas EC 300 (2021-2023) GasGas EX 300 (2021-2023) Husqvarna TE 300 Heritage Edition (2023) Husqvarna TE 300 i (2020-2023) Husqvarna TE 300 i Jarvis Edition (2020-2021) Husqvarna TX 300 i (2020-2022)

    1 in stock 1-2 business days

    £907.33

  • Cylinder Kit 72mm Bore KTM Gas Husq 300 Cylinderworks CW50011K01 55630038000 Cylinder Kit 72mm Bore KTM Gas Husq 300 Cylinderworks CW50011K01 55630038000

    Cylinder Works Cylinder Kit 72mm Bore KTM Gas Husq 300 Cylinderworks CW50011K01 55630038000

    1 in stock 1-2 business days

    Standard bore cylinder kit for 300 cc 2-stroke KTM, GasGas and Husqvarna off-road models. This kit includes the cylinder, piston kit and top end gasket kit, and is designed for 72 mm bore engine applications across a range of EXC, XC, XC-W, EC, EX, TE and TX 300 models. Cylinder Works part number CW50011K01 cross-references to OEM part number 55630038000 and uses Vertex piston reference 24244B. Features Standard bore cylinder kit Includes cylinder, piston kit and top end gasket kit Suitable for 300 cc 2-stroke engines Fits selected KTM 300 EXC TPI, 300 XC TPI and 300 XC-W TPI models Fits selected GasGas EC 300 and EX 300 models Fits selected Husqvarna TE 300 i, TE 300 Heritage Edition and TX 300 i models Specifications Uses Vertex #24244B Compression ratio: STD Cylinder diameter: 72 mm Cylinder kit type: standard bore Displacement: 300 cc Engine type: 2-cycle Cross-Reference OEM Part Numbers Cylinder Works: CW50011K01 OEM: 55630038000 Vehicle Fitments KTM 300 EXC TPI (2020-2022) KTM 300 EXC TPI ERZBERGRODEO (2022) KTM 300 XC TPI (2020-2022) KTM 300 XC-W TPI (2020-2023) KTM 300 XC-W TPI ERZBERGRODEO (2020-2023) KTM 300 XC-W TPI Six Days (2020-2021) GasGas EC 300 (2021-2023) GasGas EX 300 (2021-2023) Husqvarna TE 300 Heritage Edition (2023) Husqvarna TE 300 i (2020-2023) Husqvarna TE 300 i Jarvis Edition (2020-2021) Husqvarna TX 300 i (2020-2022)

    1 in stock 1-2 business days

    £1,075.33

Discover Cylinder Works motorcycle cylinder kits and top-end engine repair components.

© 2026 Radhouse, Powered by Shopify

    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Maestro
    • Mastercard
    • PayPal
    • Shop Pay
    • Union Pay
    • Visa