2Bros Parts

REAR SPROCKET STEEL HARD ZBK, C45 INDUCTIONJTR1304.42ZBK

$25.70Only 1 left

4.1 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Spread the cost with Klarna

1

The JTR1304.42ZBK is a rear sprocket made from heat-induction hardened C45 steel with 42 teeth and a 525 drive chain pitch. It features a unique self-cleaning design that keeps the contact area clear, significantly reducing weight compared to conventional steel rears. This sprocket lasts up to six times longer than a 7075 aluminium sprocket and greatly extends chain life by minimizing abrasive buildup. The optimized tooth geometry ensures smooth, efficient drive. The colour is black.

Specifications
SKU
SR1304-42.S.ZBK
Brand
JT
Availability
In Stock (1)

Fitments (75)

MakeModelYear
YAMAHAIT 4651980
YAMAHAIT G 2501980
YAMAHAYZ 2501977
YAMAHAYZ 2501978
YAMAHAYZ 2501979
YAMAHAYZ 2501980
YAMAHAYZ 2501981
YAMAHAYZ 2501982
YAMAHAYZ 2501983
YAMAHAYZ 2501984
YAMAHAYZ 2501985
YAMAHAYZ 2501986
YAMAHAYZ 2501987
YAMAHAYZ 2501988
YAMAHAYZ 2501989
YAMAHAYZ 2501990
YAMAHAYZ 2501991
YAMAHAYZ 2501992
YAMAHAYZ 2501993
YAMAHAYZ 2501994
YAMAHAYZ 2501995
YAMAHAYZ 2501996
YAMAHAYZ 2501997
YAMAHAYZ 2501998
YAMAHAYZ 2501999
YAMAHAYZ 2502000
YAMAHAYZ 2502001
YAMAHAYZ 2502002
YAMAHAYZ 2502003
YAMAHAYZ 2502004
YAMAHAYZ 2502005
YAMAHAYZ 2502006
YAMAHAYZ 2502007
YAMAHAYZ 2502008
YAMAHAYZ 2502009
YAMAHAYZ 2502010
YAMAHAYZ 2502011
YAMAHAYZ 2502012
YAMAHAYZ 2502013
YAMAHAYZ 2502014
YAMAHAYZ 2502015
YAMAHAYZ 2502016
YAMAHAYZ 2502017
YAMAHAYZ 2502018
YAMAHAYZ 2502019
YAMAHAYZ 250F1979
YAMAHAYZ 4001977
YAMAHAYZ 4001978
YAMAHAYZ 4001979
YAMAHAYZ 4001980
YAMAHAYZ 4001981
YAMAHAYZ 4001982
YAMAHAYZ 4001983
YAMAHAYZ 4001984
YAMAHAYZ 4001985
YAMAHAYZ 4001986
YAMAHAYZ 4001987
YAMAHAYZ 4001988
YAMAHAYZ 4001989
YAMAHAYZ 4001990
YAMAHAYZ 4001991
YAMAHAYZ 4001992
YAMAHAYZ 4001993
YAMAHAYZ 4001994
YAMAHAYZ 4001995
YAMAHAYZ 4001996
YAMAHAYZ 4001997
YAMAHAYZ 4001998
YAMAHAYZ 4001999
YAMAHAYZ 4002000
YAMAHAYZ 4002001
YAMAHAYZ 4002002
YAMAHAYZ 4651980
YAMAHAYZ 4651981
YAMAHAYZ 4651982
General Product Group
Chain & Sprockets
General Product Type
Sprockets & Components (Rear)
Variant Id
277354
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

JTR Rear Sprocket Steel Hard ZBK C45 Induction - 42 Tooth

Experience the next standard in off-road durability and efficiency with the JTR Rear Sprocket. This sprocket features a unique self-cleaning profile designed to keep the contact patch clear while significantly reducing overall weight. Constructed from C45 steel that is heat-induction hardened, this sprocket is engineered to last up to six times longer than traditional 7075 aluminum sprockets. This extended lifespan not only protects your chain but also contributes to maintaining optimal lap times.

Key Features:

  • Unique self-cleaning design maintains a clear contact area for consistent performance.
  • Engineered for significantly reduced weight compared to conventional steel rear sprockets.
  • Crafted from durable heat-induction hardened C45 steel for superior longevity.
  • Offers up to 6 times the lifespan of a 7075 aluminum sprocket.
  • Effectively extends 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: 42
  • Drive Chain Pitch: 525
  • Color: Black
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Call us+44 330 133 3748
Email us[email protected]

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.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. 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.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

You might also like

RELATED PARTS

FRONT SPROCKET CIRCLIP PK/10, D1400-0022 / EXT22

FRONT SPROCKET CIRCLIP PK/10, D1400-0022 / EXT22

$3.89
DRIVE CHAIN RIVET LINK X-RING 530X1R BLACK JTCL530X1RR

DRIVE CHAIN RIVET LINK X-RING 530X1R BLACK JTCL530X1RR

$3.33
DID 420D CHAIN 120L BLACK (RJ) 3010260, DID420D120

DID 420D CHAIN 120L BLACK (RJ) 3010260, DID420D120

$19.83

Trade pricing available

Buying parts for your business? Apply for a 2BrosParts trade account.

Apply for Trade
1