Wossner

REPLACEMENT PISTON RINGWOSSNER RSV5800, KTM KTM SX 150 2016 - 2020,KTM XC-W 150 2017 - 2019,KTM EXC 150 TPI 2020,PLEASE NOTE : TWO RINGS REQUIRED AS SOLD INDIVIDUAL REPLACEMENT PISTON RINGS FOR WOSSNER PISTON 8311DA, 8311DB AND 8311DC Part No. RSV5800 (radhouse.co.uk)

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Part Number: K4024D250-4 Make: Yamaha Model: FZ-R1000R EXUP Year: 2017-2021 Piston size: 77.93mm Oversize: +2.50mm Clearance: 0.07mm Stroke: 56.0mm Compression Height: 23.00mm Compression Ratio: 12.80:1 Theoretical Weight: 219.10g Ring set: RIK78.00D Clips: CW19 Wristpins: WP028-SP

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Part Number: K4024D150-4 Make: Yamaha Model: FZ-R1000R EXUP Year: 2017-2021 Piston size: 76,93mm Oversize: +1,50mm Clearance: 0,07mm Stroke: 56,0mm Compression Height: 23,00mm Compression Ratio: 12,50:1 Theoretical Weight: 211,10g Ring set: RIK77.00D Clips: CW19 Wristpins: WP028-SP

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KTM EXCF 250 2014 - 2021

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KTM EXCF 250 2014 - 2021

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KTM EXCF 250 2014 - 2021

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750SXI (1995 - 1996) 750SS (1996 - 1997) 750STS (1995 - 1997) Super Sport XI (1996 - 1997) 750ZXI (1995 - 1997) 750STX (1998 - 1998) XI Sport (1998 - 1999) 750SXI Pro (1998 - 2002) RING SET RST8100

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750SXI (1995 - 1996) 750SS (1996 - 1997) 750STS (1995 - 1997) Super Sport XI (1996 - 1997) 750ZXI (1995 - 1997) 750STX (1998 - 1998) XI Sport (1998 - 1999) 750SXI Pro (1998 - 2002) RING SET RST8050

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750SXI (1995 - 1996) 750SS (1996 - 1997) 750STS (1995 - 1997) Super Sport XI (1996 - 1997) 750ZXI (1995 - 1997) 750STX (1998 - 1998) XI Sport (1998 - 1999) 750SXI Pro (1998 - 2002) RING SET RST8000

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This Wossner piston kit is intended for Yamaha YZ 65 models from 2018 to 2019. With a bore size of 43.52mm and a +0.02mm oversize, this forged piston provides a precise fit, high thermal stability, and excellent strength for high-performance use. Manufactured in Germany, it is built to endure the stresses of off-road racing conditions. Features Forged high-performance piston with skirt coating Designed for efficient combustion heat transfer to cylinder walls Elliptical design ensures uniform bearing surface under heat expansion Evenly distributes thrust loads to reduce localised pressure Prevents piston collapse under extreme operating conditions Specifications Bore size: 43.52mm Piston size 43.47mm Oversize: +0.02mm Country of manufacture: Germany Cross-Reference OEM Part Numbers Wossner 8306DCB 56-W9991.C.WO Vehicle Fitments Yamaha YZ 65 2018–2019 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years YAMAHA YZ 65 2018-2020 YAMAHA YZ 65 2018-2021 YAMAHA YZ 65 2018 YAMAHA YZ 65 2018-2019

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This Wossner piston kit is designed for Yamaha YZ 65 models from 2018 to 2020. Featuring a standard bore size of 43.50mm, this forged piston delivers high strength, precise fitment, and excellent thermal stability. Manufactured in Germany, it is built to withstand the rigors of competitive riding and high engine loads. Features Forged high-performance piston with skirt coating Designed for efficient heat transfer from the combustion chamber to cylinder walls Elliptical design ensures a uniform bearing surface under thermal expansion Even distribution of thrust loads minimises localised pressure Prevents piston collapse under high-stress conditions Specifications Bore size: 43.50mm Piston size 43.45mm Size: Standard Country of manufacture: Germany Cross-Reference OEM Part Numbers Wossner 8306DA 56-W9991.A.WO BR8-11631-01-A0 Vehicle Fitments Yamaha YZ 65 2018–2020 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years YAMAHA YZ 65 2018-2020 YAMAHA YZ 65 2018-2021 YAMAHA YZ 65 2018 YAMAHA YZ 65 2018-2019

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This Wossner piston kit is designed for Sherco SE 300 models from 2016 to 2018. With a 72.02mm bore and a +0.02mm oversize, this forged piston offers enhanced strength, thermal efficiency, and precise fitment for high-performance applications. Manufactured in Germany, it is built to meet the demands of rigorous off-road use. Features Forged high-performance piston with skirt coating Engineered for optimal combustion heat transfer to cylinder walls Elliptical design ensures a consistent bearing surface under thermal expansion Reduces localised pressure and evenly distributes thrust loads Prevents piston collapse under high stress and temperature Specifications Bore size: 72.02mm Oversize: +0.02mm Country of manufacture: Germany Cross-Reference OEM Part Numbers Wossner 8307DC 56-W9990.C.WO Vehicle Fitments Sherco SE 300 2016–2018 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years SHERCO SC R 300 2019 SHERCO SE R 300 2016-2018 SHERCO SE 300 2016-2018 SHERCO SE R 300 2016-2019 SHERCO SE 300 2016-2019 SHERCO SC R 300 2019-2020 SHERCO SE R 300 2016-2021 SHERCO SE 300 2016-2021

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This Wossner piston kit is designed for Sherco SE 300 models from 2016 to 2018. With a bore size of 72.01mm and a +0.01mm oversize, the forged piston ensures a precise fit, high structural integrity, and effective thermal performance. Manufactured in Germany, it is ideal for maintaining engine reliability under demanding conditions. Features Forged high-performance piston with skirt coating Engineered for efficient combustion heat transfer to cylinder walls Elliptical design provides a uniform bearing surface under heat expansion Reduces localised pressure and evenly distributes thrust loads Prevents piston collapse during high-stress operation Specifications Bore size: 72.01mm Oversize: +0.01mm Country of manufacture: Germany Cross-Reference OEM Part Numbers Wossner 8307DB 56-W9990.B.WO Vehicle Fitments Sherco SE 300 2016–2018 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years SHERCO SC R 300 2019 SHERCO SE R 300 2016-2018 SHERCO SE 300 2016-2018 SHERCO SE R 300 2016-2019 SHERCO SE 300 2016-2019 SHERCO SC R 300 2019-2020 SHERCO SE R 300 2016-2021 SHERCO SE 300 2016-2021

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This Wossner piston kit is designed for Sherco SE 300 models from 2016 to 2018. Featuring a standard bore size of 72mm, the forged piston ensures superior strength, dimensional stability, and efficient heat management. Manufactured in Germany, this piston is built for reliable performance under demanding conditions. Features Forged high-performance piston with skirt coating Optimised for effective heat transfer from combustion chamber to cylinder walls Elliptical design ensures uniform bearing surface during thermal expansion Evenly distributes thrust loads and reduces localised pressure Prevents piston collapse under high thermal stress Specifications Bore size: 72mm Size: Standard Country of manufacture: Germany Cross-Reference OEM Part Numbers Wossner 8307DA 56-W9990.A.WO Vehicle Fitments Sherco SE 300 2016–2018 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years SHERCO SC R 300 2019 SHERCO SE R 300 2016-2018 SHERCO SE 300 2016-2018 SHERCO SE R 300 2016-2019 SHERCO SE 300 2016-2019 SHERCO SC R 300 2019-2020 SHERCO SE R 300 2016-2021 SHERCO SE 300 2016-2021

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This Wossner piston kit is intended for Sherco SE and SE-R 250 models from 2017 to 2018. Featuring a 66.42mm bore with a +0.02mm oversize, the forged piston offers exceptional strength, thermal stability, and precise performance. Manufactured in Germany, the kit includes all required components for installation. Features Forged high-performance piston with skirt coating Designed for optimal combustion heat transfer to cylinder walls Elliptical design provides a uniform bearing surface under thermal expansion Evenly distributes thrust loads and reduces localised pressure Prevents piston collapse under high-stress operation Includes piston, rings, pin, and circlips Specifications Bore size: 66.42mm Oversize: +0.02mm Ring set: RIK77.00D Pin: WP070 Clips: CW16 Country of manufacture: Germany Cross-Reference OEM Part Numbers Wossner 8305DC 56-W9989.A.WO Vehicle Fitments Sherco SE 250 2017–2018 Sherco SE-R 250 2017–2018 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years SHERCO SC R 250 2019 SHERCO SE R 250 2017-2018 SHERCO SE R 250 2017-2019 SHERCO SE R 250 2017-2021 SHERCO SE 250 2017-2018 SHERCO SE 250 2017-2019 SHERCO SC R 250 2019-2020 SHERCO SE 250 2017-2021

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This Wossner piston kit is designed for Sherco SE and SE-R 250 models from 2017 to 2018. With a bore size of 66.41mm and a +0.01mm oversize, the forged piston delivers enhanced durability and precise fitment. Manufactured in Germany, the kit includes the piston, rings, pin, and circlips for complete installation. Features Forged high-performance piston with skirt coating Engineered for efficient heat dissipation from combustion chamber to cylinder walls Elliptical design ensures uniform bearing surface under thermal expansion Minimises localised pressure and evenly distributes thrust loads Prevents piston collapse under high thermal and mechanical stress Includes piston, rings, pin, and circlips Specifications Bore size: 66.41mm Oversize: +0.01mm Ring set: RIK77.00D Pin: WP070 Clips: CW16 Country of manufacture: Germany Cross-Reference OEM Part Numbers Wossner 8305DB 56-W9989.A.WO Vehicle Fitments Sherco SE 250 2017–2018 Sherco SE-R 250 2017–2018 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years SHERCO SC R 250 2019 SHERCO SE R 250 2017-2018 SHERCO SE R 250 2017-2019 SHERCO SE R 250 2017-2021 SHERCO SE 250 2017-2018 SHERCO SE 250 2017-2019 SHERCO SC R 250 2019-2020 SHERCO SE 250 2017-2021

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This Wossner piston kit is designed for Sherco SE and SE-R 250 models from 2017 to 2018. With a standard bore size of 66.40mm, the forged piston ensures high strength, heat stability, and precise performance. Manufactured in Germany, the kit includes all necessary components for proper installation. Features Forged high-performance piston with skirt coating Engineered for efficient heat transfer from combustion chamber to cylinder walls Elliptical design maintains uniform bearing surface during thermal expansion Distributes thrust loads evenly and reduces localised stress Prevents piston collapse under high operating stress Includes piston, rings, pin, and circlips Specifications Bore size: 66.40mm (Standard) Ring set: RIK77.00D Pin: WP070 Clips: CW16 Country of manufacture: Germany Cross-Reference OEM Part Numbers Wossner 8305DA 56-W9989.A.WO Vehicle Fitments Sherco SE 250 2017–2018 Sherco SE-R 250 2017–2018 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years SHERCO SC R 250 2019 SHERCO SE R 250 2017-2018 SHERCO SE R 250 2017-2019 SHERCO SE R 250 2017-2021 SHERCO SE 250 2017-2018 SHERCO SE 250 2017-2019 SHERCO SC R 250 2019-2020 SHERCO SE 250 2017-2021

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This Wossner piston kit is designed for Sherco SE/SE-R 250 models from 2014 to 2016. With a bore size of 66.40mm and a C grade piston size of 66.36mm, this forged piston ensures a precise fit, excellent strength, and thermal stability. Manufactured in Germany using a high-silicone aluminium alloy, the kit includes all necessary components for installation. Features Forged high-performance piston with skirt coating Constructed from high-silicone aluminium alloy for reduced thermal expansion and enhanced durability Maintains consistent dimensions under high-stress and high-temperature conditions Includes piston, rings, pin, and circlips Specifications Bore size: 66.40mm Piston size: 66.36mm (C grade) Lock part number: CW18 Pin part number: WP033 Ring set: 2 x RSB6640 Country of manufacture: Germany Cross-Reference OEM Part Numbers Wossner 8308DC 56-W501.C.WO Vehicle Fitments Sherco SE 250 2014–2016 Sherco SE-R 250 2014–2016 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years SHERCO SE R 250 2014-2016 SHERCO SE 250 2014-2016

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This Wossner piston kit is built for Sherco SE/SE-R 250 models from 2014 to 2016. Featuring a 66.40mm bore and a B grade piston size of 66.35mm, the kit provides optimal fitment, strength, and thermal stability. Manufactured in Germany from high-silicone aluminum alloy, it includes all necessary installation components. Features Forged high-performance piston with skirt coating High-silicone aluminum alloy construction for low expansion and superior strength Maintains dimensional integrity under high-stress and high-temperature conditions Includes piston, rings, pin, and circlips Specifications Bore size: 66.40mm Piston size: 66.35mm (B grade) Lock part number: CW18 Pin part number: WP033 Ring set: 2 x RSB6640 Country of manufacture: Germany Cross-Reference OEM Part Numbers Wossner 8308DB 56-W501.B.WO Vehicle Fitments Sherco SE 250 2014–2016 Sherco SE-R 250 2014–2016 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years SHERCO SE R 250 2014-2016 SHERCO SE 250 2014-2016

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This Wossner piston kit is designed for Sherco SE/SE-R 250 models from 2014 to 2016. Featuring a bore size of 66.40mm and a piston size of 66.34mm (A grade), the forged piston delivers excellent thermal stability and mechanical strength under high-stress conditions. Manufactured in Germany, the kit includes all essential components for installation. Features Forged high-performance piston with skirt coating Constructed from high-silicone aluminium alloy for low thermal expansion and superior strength Maintains dimensional stability under high-temperature operation Includes piston, rings, pin, and circlips Specifications Bore size: 66.40mm Piston size: 66.34mm (A grade) Lock part number: CW18 Pin part number: WP033 Ring set: 2 x RSB6640 Country of manufacture: Germany Cross-Reference OEM Part Numbers Wossner 8308DA 56-W501.A.WO Vehicle Fitments Sherco SE 250 2014–2016 Sherco SE-R 250 2014–2016 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years SHERCO SE R 250 2014-2016 SHERCO SE 250 2014-2016

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300SCF Forged Piston 2019-2021 Additional information Manufacture: Sherco Kit Part Numbe: 8991DC YOM Fro: 2019 To 2021 Bore Size: 83.97mm ”“ 8991DC Oversize: +0.02MM Strok: 54.8mm Compression Heigh: 18.9mm Clip Part Numbe: CW16 Pin Siz: 16mm Pin Part Numbe: WP036

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300SCF Forged Piston 2019-2021 Additional information Manufacture: Sherco Kit Part Numbe: 8991DB YOM Fro: 2019 To 2021 Bore Size: 83.96mm ”“ 8991DB Oversize: +0.01MM Strok: 54.8mm Compression Heigh: 18.9mm Clip Part Numbe: CW16 Pin Siz: 16mm Pin Part Numbe: WP036

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300SCF Forged Piston 2019-2021 Additional information Manufacture: Sherco Kit Part Numbe: 8991DA YOM Fro: 2019 To 2021 Bore Size: 83.95mm ”“ 8991DA Strok: 54.8mm Compression Heigh: 18.9mm Clip Part Numbe: CW16 Pin Siz: 16mm Pin Part Numbe: WP036

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