2Bros Parts

REAR SPROCKET STEEL JTR28.42, C49 High Carbon Steel 520

$17.59

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Delivery to United States 5–8 business days

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REAR SPROCKET STEEL JTR28.42, C45 High Carbon Steel 520. Features a unique self-cleaning design that keeps the contact area clear and significantly reduced weight versus conventional steel rears. Constructed from heat-induction hardened C45 steel, it lasts up to 6x longer than a 7075-aluminium sprocket and greatly extends chain life by minimizing abrasive buildup. Optimized tooth geometry ensures smooth, efficient drive. Specifications: Material: Heat-induction hardened C45 steel, Tooth count: 42, Drive chain pitch: 520, Colour: Black. Weight: 686 grams.

Specifications
SKU
SR28-42.S.JT
Brand
JT
Availability
In Stock (2)
General Product Group
Chain & Sprockets
General Product Type
Sprockets & Components (Rear)
Variant Id
278126
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

JT Steel Rear Sprocket 520 Pitch 42 Tooth Black

Experience the next level of motocross durability and efficiency with this JT Steel Rear Sprocket. Engineered with a unique self-cleaning profile, it actively maintains a clear contact patch while significantly reducing overall weight. The heat-induction hardened C45 steel construction is designed for exceptional longevity, lasting up to six times longer than conventional 7075 aluminum sprockets. This extended lifespan not only protects your chain but also helps maintain optimal lap times by minimizing abrasive buildup and ensuring smooth, efficient power transfer.

Key Features:

  • Innovative self-cleaning design that keeps the drive area clear of debris.
  • Weight significantly reduced compared to traditional steel rear sprockets.
  • Constructed from robust, heat-induction hardened C45 steel for superior resilience.
  • Offers an extended service life, outperforming 7075-aluminum sprockets by up to 6 times.
  • Contributes to a greatly extended chain life by minimizing the impact of abrasive buildup.
  • Features optimized tooth geometry for a smooth and highly efficient drive system.

Specifications:

  • Material: Heat-induction hardened C45 steel
  • Tooth Count: 42
  • Drive Chain Pitch: 520
  • 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 or email us with your make, model and year 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

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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.

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