REAR SPROCKET ALLOY BLACK 251, JTA251.51BLK 7075-T6 Aluminium, SR251-51
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JT ALLOY Rear Sprocket JTA251.51 BLACK CHAIN 520. Aluminium Racing Rear Sprockets made from aviation-grade 7075-T6 aluminium alloy with a lightweight design and CNC machined for performance and lifespan. Aluminium MX rear racing sprockets are manufactured with a special self-cleaning design and are hand-finished.
- SKU
- SR245-51.JT.A_BK
- Brand
- JT
- Availability
- In Stock (4)
Fitments (221)
| Make | Model | Year |
|---|---|---|
| HONDA | XL 250 | 1982 |
| HONDA | XL 250 | 1983 |
| HONDA | XL 250 | 1984 |
| HONDA | XL 250 | 1985 |
| HONDA | XL 250 | 1986 |
| HONDA | XL 250 | 1987 |
| HONDA | XL 500 | 1979 |
| HONDA | XL 500 | 1980 |
| HONDA | XL 500 | 1981 |
| HONDA | XL 500 | 1982 |
| HONDA | XL 500 | 1983 |
| HONDA | XL 500 | 1984 |
| HONDA | XL 600 | 1984 |
| HONDA | XL 600 | 1985 |
| HONDA | XL 600 | 1986 |
| HONDA | XL 600 | 1987 |
| HONDA | XL 600 | 1988 |
| HONDA | XL 600 | 1989 |
| HONDA | XL 600 | 1990 |
| HONDA | XL 600 | 1991 |
| HONDA | XL 600 | 1992 |
| HONDA | XL 600 | 1993 |
| HONDA | XL 600 | 1994 |
| HONDA | XR 250 | 1979 |
| HONDA | XR 250 | 1980 |
| HONDA | XR 250 | 1981 |
| HONDA | XR 250 | 1982 |
| HONDA | XR 250 | 1983 |
| HONDA | XR 600R | 1983 |
| HONDA | XR 600R | 1984 |
| HONDA | XR 600R | 1985 |
| HONDA | XR 600R | 1986 |
| HONDA | XR 600R | 1987 |
| HONDA | XR 600R | 1988 |
| HONDA | XR 600R | 1989 |
| HONDA | XR 600R | 1990 |
| YAMAHA | WR 250 | 2000 |
| YAMAHA | WR 250 | 2001 |
| YAMAHA | WR 250 | 2002 |
| YAMAHA | WR 250 | 2003 |
| YAMAHA | WR 250 | 2004 |
| YAMAHA | WR 250 | 2005 |
| YAMAHA | WR 250 | 2006 |
| YAMAHA | WR 250F | 2001 |
| YAMAHA | WR 250F | 2002 |
| YAMAHA | WR 250F | 2003 |
| YAMAHA | WR 250F | 2004 |
| YAMAHA | WR 250F | 2005 |
| YAMAHA | WR 250F | 2006 |
| YAMAHA | WR 250F | 2007 |
| YAMAHA | WR 250F | 2008 |
| YAMAHA | WR 250F | 2009 |
| YAMAHA | WR 250F | 2010 |
| YAMAHA | WR 250F | 2011 |
| YAMAHA | WR 250F | 2012 |
| YAMAHA | WR 250F | 2013 |
| YAMAHA | WR 250F | 2014 |
| YAMAHA | WR 250F | 2015 |
| YAMAHA | WR 250F | 2016 |
| YAMAHA | WR 250F | 2017 |
| YAMAHA | WR 250F | 2018 |
| YAMAHA | WR 250F | 2019 |
| YAMAHA | WR 400F | 1999 |
| YAMAHA | WR 400F | 2000 |
| YAMAHA | WR 400F | 2001 |
| YAMAHA | WR 400F | 2002 |
| YAMAHA | WR 426F | 1999 |
| YAMAHA | WR 426F | 2000 |
| YAMAHA | WR 426F | 2001 |
| YAMAHA | WR 426F | 2002 |
| YAMAHA | WR 450F | 2003 |
| YAMAHA | WR 450F | 2004 |
| YAMAHA | WR 450F | 2005 |
| YAMAHA | WR 450F | 2006 |
| YAMAHA | WR 450F | 2007 |
| YAMAHA | WR 450F | 2008 |
| YAMAHA | WR 450F | 2009 |
| YAMAHA | WR 450F | 2010 |
| YAMAHA | WR 450F | 2011 |
| YAMAHA | WR 450F | 2012 |
| YAMAHA | WR 450F | 2013 |
| YAMAHA | WR 450F | 2014 |
| YAMAHA | WR 450F | 2015 |
| YAMAHA | WR 450F | 2016 |
| YAMAHA | WR 450F | 2017 |
| YAMAHA | WR 450F | 2018 |
| YAMAHA | WR 450F | 2019 |
| YAMAHA | YZ 125 | 1999 |
| YAMAHA | YZ 125 | 2000 |
| YAMAHA | YZ 125 | 2001 |
| YAMAHA | YZ 125 | 2002 |
| YAMAHA | YZ 125 | 2003 |
| YAMAHA | YZ 125 | 2004 |
| YAMAHA | YZ 125 | 2005 |
| YAMAHA | YZ 125 | 2006 |
| YAMAHA | YZ 125 | 2007 |
| YAMAHA | YZ 125 | 2008 |
| YAMAHA | YZ 125 | 2009 |
| YAMAHA | YZ 125 | 2010 |
| YAMAHA | YZ 125 | 2011 |
| YAMAHA | YZ 125 | 2012 |
| YAMAHA | YZ 125 | 2013 |
| YAMAHA | YZ 125 | 2014 |
| YAMAHA | YZ 125 | 2015 |
| YAMAHA | YZ 125 | 2016 |
| YAMAHA | YZ 125 | 2017 |
| YAMAHA | YZ 125 | 2018 |
| YAMAHA | YZ 125 | 2019 |
| YAMAHA | YZ 125 | 2020 |
| YAMAHA | YZ 250 | 1977 |
| YAMAHA | YZ 250 | 1978 |
| YAMAHA | YZ 250 | 1979 |
| YAMAHA | YZ 250 | 1980 |
| YAMAHA | YZ 250 | 1981 |
| YAMAHA | YZ 250 | 1982 |
| YAMAHA | YZ 250 | 1983 |
| YAMAHA | YZ 250 | 1984 |
| YAMAHA | YZ 250 | 1985 |
| YAMAHA | YZ 250 | 1986 |
| YAMAHA | YZ 250 | 1987 |
| YAMAHA | YZ 250 | 1988 |
| YAMAHA | YZ 250 | 1989 |
| YAMAHA | YZ 250 | 1990 |
| YAMAHA | YZ 250 | 1991 |
| YAMAHA | YZ 250 | 1992 |
| YAMAHA | YZ 250 | 1993 |
| YAMAHA | YZ 250 | 1994 |
| YAMAHA | YZ 250 | 1995 |
| YAMAHA | YZ 250 | 1996 |
| YAMAHA | YZ 250 | 1997 |
| YAMAHA | YZ 250 | 1998 |
| YAMAHA | YZ 250 | 1999 |
| YAMAHA | YZ 250 | 2000 |
| YAMAHA | YZ 250 | 2001 |
| YAMAHA | YZ 250 | 2002 |
| YAMAHA | YZ 250 | 2003 |
| YAMAHA | YZ 250 | 2004 |
| YAMAHA | YZ 250 | 2005 |
| YAMAHA | YZ 250 | 2006 |
| YAMAHA | YZ 250 | 2007 |
| YAMAHA | YZ 250 | 2008 |
| YAMAHA | YZ 250 | 2009 |
| YAMAHA | YZ 250 | 2010 |
| YAMAHA | YZ 250 | 2011 |
| YAMAHA | YZ 250 | 2012 |
| YAMAHA | YZ 250 | 2013 |
| YAMAHA | YZ 250 | 2014 |
| YAMAHA | YZ 250 | 2015 |
| YAMAHA | YZ 250 | 2016 |
| YAMAHA | YZ 250 | 2017 |
| YAMAHA | YZ 250 | 2018 |
| YAMAHA | YZ 250 | 2019 |
| YAMAHA | YZ 250F | 2001 |
| YAMAHA | YZ 250F | 2002 |
| YAMAHA | YZ 250F | 2003 |
| YAMAHA | YZ 250F | 2004 |
| YAMAHA | YZ 250F | 2005 |
| YAMAHA | YZ 250F | 2006 |
| YAMAHA | YZ 250F | 2007 |
| YAMAHA | YZ 250F | 2008 |
| YAMAHA | YZ 250F | 2009 |
| YAMAHA | YZ 250F | 2010 |
| YAMAHA | YZ 250F | 2011 |
| YAMAHA | YZ 250F | 2012 |
| YAMAHA | YZ 250F | 2013 |
| YAMAHA | YZ 250F | 2014 |
| YAMAHA | YZ 250F | 2015 |
| YAMAHA | YZ 250F | 2016 |
| YAMAHA | YZ 250F | 2017 |
| YAMAHA | YZ 250F | 2018 |
| YAMAHA | YZ 250F | 2019 |
| YAMAHA | YZ 400 | 1977 |
| YAMAHA | YZ 400 | 1978 |
| YAMAHA | YZ 400 | 1979 |
| YAMAHA | YZ 400 | 1980 |
| YAMAHA | YZ 400 | 1981 |
| YAMAHA | YZ 400 | 1982 |
| YAMAHA | YZ 400 | 1983 |
| YAMAHA | YZ 400 | 1984 |
| YAMAHA | YZ 400 | 1985 |
| YAMAHA | YZ 400 | 1986 |
| YAMAHA | YZ 400 | 1987 |
| YAMAHA | YZ 400 | 1988 |
| YAMAHA | YZ 400 | 1989 |
| YAMAHA | YZ 400 | 1990 |
| YAMAHA | YZ 400 | 1991 |
| YAMAHA | YZ 400 | 1992 |
| YAMAHA | YZ 400 | 1993 |
| YAMAHA | YZ 400 | 1994 |
| YAMAHA | YZ 400 | 1995 |
| YAMAHA | YZ 400 | 1996 |
| YAMAHA | YZ 400 | 1997 |
| YAMAHA | YZ 400 | 1998 |
| YAMAHA | YZ 400 | 1999 |
| YAMAHA | YZ 400 | 2000 |
| YAMAHA | YZ 400 | 2001 |
| YAMAHA | YZ 400 | 2002 |
| YAMAHA | YZ 400F | 1999 |
| YAMAHA | YZ 426 | 2000 |
| YAMAHA | YZ 426 | 2001 |
| YAMAHA | YZ 426 | 2002 |
| YAMAHA | YZ 426F | 2000 |
| YAMAHA | YZ 426F | 2001 |
| YAMAHA | YZ 426F | 2002 |
| YAMAHA | YZ 450F | 2003 |
| YAMAHA | YZ 450F | 2004 |
| YAMAHA | YZ 450F | 2005 |
| YAMAHA | YZ 450F | 2006 |
| YAMAHA | YZ 450F | 2007 |
| YAMAHA | YZ 450F | 2008 |
| YAMAHA | YZ 450F | 2009 |
| YAMAHA | YZ 450F | 2010 |
| YAMAHA | YZ 450F | 2011 |
| YAMAHA | YZ 450F | 2012 |
| YAMAHA | YZ 450F | 2013 |
| YAMAHA | YZ 450F | 2014 |
| YAMAHA | YZ 450F | 2015 |
| YAMAHA | YZ 450F | 2016 |
| YAMAHA | YZ 450F | 2017 |
| YAMAHA | YZ 450F | 2018 |
| YAMAHA | YZ 450F | 2019 |
- General Colour C
- Black
- General Product Group
- Chain & Sprockets
- General Product Type
- Sprockets & Components (Rear)
- Variant Id
- 297211
FULL DESCRIPTION
JT Alloy Rear Sprocket - Black
Enhance your motorcycle's performance and lifespan with this high-quality JT Alloy Rear Sprocket. Crafted from advanced aviation-grade 7075-T6 aluminium alloy, this sprocket is designed for optimal lightweight performance and durability.
Key Features:
- Constructed from premium 7075-T6 aluminium alloy for a superior strength-to-weight ratio.
- CNC machined for precision and enhanced performance.
- Features a self-cleaning design to maintain optimal chain and sprocket contact.
- Hand-finished for a perfect, race-ready appearance and function.
- Durable black finish for a sleek look.
- Designed for 520 pitch chains.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
More answers in our FAQ.
Trade pricing available
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