Name: Rear Sprocket Steel 39 [JTR301/210.39] 520, Double Drilled JTR301, JTR210, L17-0239, MX-80339
Brand: Dirt Racing
SKU: SR301-39.S.DR

Rear Sprocket Steel 39 [JTR301/210.39] 520, Double Drilled JTR301, JTR210, L17-0239, MX-80339

Dirt Racing
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Description

The Rear Drive Sprocket SR301-39.S.DR is a 39-tooth steel sprocket compatible with 520 chain size, featuring dual-fitment mounting holes: countersunk (CSK 8.5 mm) and plain (CTB 10.5 mm). It is constructed from high-carbon C45 steel, heat-treated, and finished in black powder coat or bright zinc plating for durability and corrosion resistance.

Features

Made with C45 high-carbon steel
Heat-treated and sandblasted to reduce surface tension
Dual bolt pattern: Countersunk 8.5 mm & Plain 10.5 mm
Finished in powder-coated black or silver BZP
Meets or exceeds motorcycle industry compound standards
Direct OEM replacement

Specifications

Tooth Count: 39
Chain Size: 520
Mounting: Dual fitment (CSK 8.5 mm and CTB 10.5 mm)
Part No.: SR301-39.S.DR

Cross-Reference OEM Part Numbers

JTR301.39
JTR210.39

Vehicle Fitments

Honda Off Road

CR125 RV 1997
CR250 RN, RP 1992–1993
CR250 RR 1994
CR250 RS
CR250 R-3 2003
CRF150 F-3,4,5 2003–2005
CRF150 F-6 to F-J 2006–2018
CRF250 R-A
CRF250 M-D, E, F 2013–2015
CRF250L 2013–2016
CRF450 R-4 to R-E 2004–2014
CRF450 R-F to R-J 2015–2018
CRF450 RX-H, J 2017–2018
XR250 RT to R-4 1996–2004
XR400 RT to R-4 1996–2004
XR600 1991–2001
XR650 R-Y to R-7 2000–2007
XR650 L-J 2018
CRM250 K, K2, L
CRM250 RP2MD24
CRM250 ARMD32
XR250 III S (Baja) 1996
XR250 S 1996
XR250 Baja

Honda Road

CRF230 M-9, A 2009–2010
XL250ME06
XL250 S2, 3S2MD30

Betamotor Off Road

250 RR 2T 2013–2018
300 RR 2T 2013–2018
390 RR 2015–2018
390 RS 2015–2016
430 RR 2015–2018
430 RS 2015–2016
450 RR 2013–2014
480 RR 2015–2018
498 RR 2013–2016

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
HONDA	XR 250	1996-2004
HONDA	CRF L 250	2013-2016
HONDA	XR 400	1996-2005

Rear Sprocket Steel 39 [JTR301/210.39] 520, Double Drilled JTR301, JTR210, L17-0239, MX-80339

Dirt Racing
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The Rear Drive Sprocket SR301-39.S.DR is a 39-tooth steel sprocket compatible with 520 chain size, featuring dual-fitment mounting holes: countersunk... Read more

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SKU: SR301-39.S.DR

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Description

The Rear Drive Sprocket SR301-39.S.DR is a 39-tooth steel sprocket compatible with 520 chain size, featuring dual-fitment mounting holes: countersunk (CSK 8.5 mm) and plain (CTB 10.5 mm). It is constructed from high-carbon C45 steel, heat-treated, and finished in black powder coat or bright zinc plating for durability and corrosion resistance.

Features

Made with C45 high-carbon steel
Heat-treated and sandblasted to reduce surface tension
Dual bolt pattern: Countersunk 8.5 mm & Plain 10.5 mm
Finished in powder-coated black or silver BZP
Meets or exceeds motorcycle industry compound standards
Direct OEM replacement

Specifications

Tooth Count: 39
Chain Size: 520
Mounting: Dual fitment (CSK 8.5 mm and CTB 10.5 mm)
Part No.: SR301-39.S.DR

Cross-Reference OEM Part Numbers

JTR301.39
JTR210.39

Vehicle Fitments

Honda Off Road

CR125 RV 1997
CR250 RN, RP 1992–1993
CR250 RR 1994
CR250 RS
CR250 R-3 2003
CRF150 F-3,4,5 2003–2005
CRF150 F-6 to F-J 2006–2018
CRF250 R-A
CRF250 M-D, E, F 2013–2015
CRF250L 2013–2016
CRF450 R-4 to R-E 2004–2014
CRF450 R-F to R-J 2015–2018
CRF450 RX-H, J 2017–2018
XR250 RT to R-4 1996–2004
XR400 RT to R-4 1996–2004
XR600 1991–2001
XR650 R-Y to R-7 2000–2007
XR650 L-J 2018
CRM250 K, K2, L
CRM250 RP2MD24
CRM250 ARMD32
XR250 III S (Baja) 1996
XR250 S 1996
XR250 Baja

Honda Road

CRF230 M-9, A 2009–2010
XL250ME06
XL250 S2, 3S2MD30

Betamotor Off Road

250 RR 2T 2013–2018
300 RR 2T 2013–2018
390 RR 2015–2018
390 RS 2015–2016
430 RR 2015–2018
430 RS 2015–2016
450 RR 2013–2014
480 RR 2015–2018
498 RR 2013–2016

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
HONDA	XR 250	1996-2004
HONDA	CRF L 250	2013-2016
HONDA	XR 400	1996-2005

Shipping & Delivery

How long will my item take to arrive?

Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

Where do you ship to?

We currently only ship orders within the UK.

How can I track my order?

Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

Can I collect my order?

Unfortunately we do not offer order collections from our fulfilment centre.