REAR SPROCKET STEEL JTR210.51SC, LIGHTWEIGHT SELF-CLEANING

The next standard in MX durability and efficiency: a unique self-cleaning profile keeps the contact patch clear while trimming weight. Heat-induction hardened C45 steel lasts up to six times longer than 7075 aluminium, protecting your chain and your lap times.

Features

• Unique self-cleaning design keeps contact area clear
• Significantly reduced weight versus conventional steel rears
• Heat-induction hardened C45 steel construction
• Lasts up to 6× longer than a 7075-aluminium sprocket
• Greatly extends chain life by minimizing abrasive buildup
• Optimized tooth geometry for smooth, efficient drive

Specifications

• Material: Heat-induction hardened C45 steel
• Tooth count: 51
• Drive chain pitch: 520
• Colour: Black

Vehicle Fitment

Betamotor (Off Road/Road, Rear)

• 125 RR 2T (2018-2021)
• 125 RR 2T Race (2025)
• 200 RR Enduro (2019-2020)
• 250 RR 2T (2013-2021)
• 300 RR 2T (2013-2024)
• 350 RR (2013-2024)
• 350 RR-S (2018-2021)
• 390 RR (2015-2021)
• 390 RR-S (2018-2020)
• 390 RS (2015-2016)
• 400 RR (2013-2016)
• 430 RR (2015-2021)
• 430 RR-S (2018-2021)
• 430 RS (2015-2016)
• 450 RR (2013-2014)
• 480 RR (2015-2021)
• 498 RR (2013-2016)

Honda (Off Road/Road, Rear)

• CR125 RD,RE (1983-1984)
• CR125 RF (1985)
• CR125 RG (1986)
• CR125 RH,RJ,RK,RL,RM,RN,RP,RR (1987-1994)
• CR125 RS,RT (1995-1996)
• CR125 RV (1997)
• CR125 RW,RX (1998-1999)
• CR125 RY,R-1 (2000-2001)
• CR125 R-2 (2002)
• CR125 R-3 (2003)
• CR125 R-4,5,6,7 (2004-2007)
• CR250 RE,RF (1984-1985)
• CR250 RG (1986)
• CR250 RH (1987)
• CR250 RJ,RK (1988-1989)
• CR250 RL,RM (1990-1991)
• CR250 RN,RP (1992-1993)
• CR250 RR (1994)
• CR250 RS (1995)
• CR250 RT (1996)
• CR250 RV,RW,RX,RY,R-1 (1997-2001)
• CR250 R-2 (2002)
• CR250 R-3 (2003)
• CR250 R-4 (2004)
• CR250 R-5 (2005)
• CR250 R-6,7,8 (2006-2008)
• CR250 (1997)
• CR500 RE,RF (1984-1985)
• CR500 RG,RH (1986-1987)
• CR500 RJ,RK,RL,RM (1988-1991)
• CR500 RN,RP,RR (1992-1994)
• CR500 RS,RT,RV,RW (1995-1997)
• CR500 RW,RX,RY,R-1 (1998-2001)
• CRM250 K,K2,L (1991)
• CRM250 RP2 MD24
• CRM250 AR MD32 (1997-1999)
• CRF150 F-3,4,5 (2003-2005)
• CRF150 F-6,7,8,9,A,B,C,D,E,F,G,H,J (2006-2018)
• CRF230 F-3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,J,K (2003-2019)
• CRF230 L-8,9 (2008-2009)
• CRF230 M-9,A (2009-2010)
• CRF250 F-K,L,M,N,P,R,S (2019-2025)
• CRF250 R-4,5,6,7,8,9,A (2004-2010)
• CRF250 R-A (2010)
• CRF250 R-B,C,D,E,F,G,H (2011-2017)
• CRF250 R-J (2018)
• CRF250 R-K,L,M (2019-2021)
• CRF250 R-N,P,R,S (2022-2025)
• CRF250 R- (2026)
• CRF250 RWE-S (2025)
• CRF250 RWE- (2026)
• CRF250 RX-K,L,M (2019-2021)
• CRF250 RX-N,P,R,S (2022-2025)
• CRF250 RX- (2026)
• CRF300 F (2026)
• CRF450 L-K (2019)
• CRF450 L-L (2020)
• CRF450 L-M (2021)
• CRF450 L-N (2022)
• CRF450 RL-M (2021)
• CRF450 RL-N (2022)
• CRF450 RL-P (2023)
• CRF450 RL-R (2024)
• CRF450 RL-S (2025)
• CRF450 RL- (2026)
• CRF450 R-2,R-3 (2002-2003)
• CRF450 R-4,5,6,7,8,9,A,B,C,D,E (2004-2014)
• CRF450 R-F,G,H,J,K,L (2015-2018)
• CRF450 R-K (2019-2020)
• CRF450 R-L (2020)
• CRF450 R-M (2021)
• CRF450 R-N (2022)
• CRF450 R-P (2023)
• CRF450 R-R (2024)
• CRF450 R-Rs (2024)
• CRF450 R-S (2025)
• CRF450 R- (2026)
• CRF450 RWE-K,L,M (2019-2021)
• CRF450 RWE-N (2022)
• CRF450 RWE-P (2023)
• CRF450 RWE-R (2024)
• CRF450 RWE-S (2025)
• CRF450 RWE- (2026)
• CRF450 RX-H,J,K,L,M (2017-2021)
• CRF450 RX-L (2019-2020)
• CRF450 RX-M (2021)
• CRF450 RX-N (2022)
• CRF450 RX-P (2023)
• CRF450 RX-R (2024)
• CRF450 RX-S (2025)
• CRF450 RX- (2026)
• CRF450 X-5,6,7,8,9,A,B,C,D,E,F,G,H (2005-2016)
• CRF450 X-J,K (2017-2018)
• CRF450 X-K,L (2019-2020)
• CRF450 X-M (2021)
• CRF450 X-N (2022)
• CRF450 X-P (2023)
• CRF450 X-R (2024)
• CRF450 X-S (2025)
• CRF450 X- (2026)
• XL250 ME06
• XL250 S2,3S2 MD30
• XR250 III S (Baja) (1996)
• XR250 S (1996)
• XR250 Baja (1997-2007)
• XR250 RT,RV,RW,RX,RY,R-1,R-2,R-3,R-4 (1996-2004)
• XR400 RT,RV,RW,RX,RY,R-1,R-2,R-3,R-4 (1996-2004)
• XR650 R-Y,1,2,3,4.5,6,7 (2000-2007)