REAR SPROCKET STEEL HARD ZBK, C45 INDUCTIONJTR1306.40ZBK
4.1 Trustpilot 99.9% positive on eBay
UK delivery £4.99, free over £60 2–4 business days
Spread the cost with 18+, T&Cs apply
The JT JTR1306.40ZBK rear sprocket is made from heat-induction hardened C45 steel and features a unique self-cleaning profile that keeps the contact patch clear while reducing weight. This construction lasts up to six times longer than 7075 aluminium, protecting your chain and improving efficiency. The sprocket has 40 teeth, a 530 drive chain pitch, and a black colour.
- SKU
- SR1306-40.S.ZBK
- Brand
- JT
- Availability
- In Stock (1)
Fitments (75)
| Make | Model | Year |
|---|---|---|
| YAMAHA | IT 465 | 1980 |
| YAMAHA | IT G 250 | 1980 |
| 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 | 1979 |
| 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 465 | 1980 |
| YAMAHA | YZ 465 | 1981 |
| YAMAHA | YZ 465 | 1982 |
- General Product Group
- Chain & Sprockets
- General Product Type
- Sprockets & Components (Rear)
- Variant Id
- 277366
FULL DESCRIPTION
REAR SPROCKET STEEL HARD ZBK, C45 INDUCTION JTR1306.40ZBK
Experience the next standard in off-road durability and efficiency with this high-performance rear sprocket. Its unique self-cleaning profile is engineered to keep the contact patch clear while significantly reducing overall weight. Crafted from heat-induction hardened C45 steel, this sprocket offers exceptional longevity, lasting up to six times longer than conventional 7075 aluminum sprockets. This superior durability not only protects your chain but also helps maintain optimal lap times.
Key Features:
- Unique self-cleaning design ensures the contact area remains clear for optimal performance.
- Significantly reduced weight compared to traditional steel rear sprockets.
- Constructed from durable heat-induction hardened C45 steel.
- Offers an extended lifespan, up to 6 times longer than 7075 aluminum sprockets.
- Maximizes chain life by minimizing abrasive buildup.
- Features optimized tooth geometry for smooth and efficient power transfer.
Specifications:
- Material: Heat-induction hardened C45 steel
- Tooth Count: 40
- Drive Chain Pitch: 530
- Color: Black
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
Buying parts for your business? Apply for a 2BrosParts trade account.


