2Bros Parts

REAR SPROCKET STEEL 42 [JTR245/251] 520, DOUBLE DRILLED [JTR245.42 / JTR251.42]

$16.54

4.1 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Spread the cost with Klarna

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REAR DRIVE SPROCKET STEEL 42 TEETH 520. Double drilled with 2 sets of fixing holes, countersunk CSK and plain. Made with C45 high-carbon steel. Each sprocket is heat treated and sandblasted to lower surface tension. Meets or exceeds the highest-quality compound standards set by the motorcycle industry. Finished in Powder Coated Black or Silver BZP bright zinc plated. Cross reference numbers: L17-6542, JTR245, JTR245/2, JTR251, JTR251/2, RENTHAL 150, WFC9339. Part No. SR245-42.S.DR. Manufacturer: Dirt Racing.

Specifications
SKU
SR245-42.S.DR
Brand
Dirt Racing
Availability
In Stock (8)

Fitments (250)

MakeModelYear
HONDAXL 2501982
HONDAXL 2501983
HONDAXL 2501984
HONDAXL 2501985
HONDAXL 2501986
HONDAXL 2501987
HONDAXL 5001979
HONDAXL 5001980
HONDAXL 5001981
HONDAXL 5001982
HONDAXL 5001983
HONDAXL 5001984
HONDAXL 6001984
HONDAXL 6001985
HONDAXL 6001986
HONDAXL 6001987
HONDAXL 6001988
HONDAXL 6001989
HONDAXL 6001990
HONDAXL 6001991
HONDAXL 6001992
HONDAXL 6001993
HONDAXL 6001994
HONDAXR 2501979
HONDAXR 2501980
HONDAXR 2501981
HONDAXR 2501982
HONDAXR 2501983
HONDAXR 2501984
HONDAXR 2501985
HONDAXR 2501986
HONDAXR 2501987
HONDAXR 2501988
HONDAXR 2501989
HONDAXR 3501983
HONDAXR 3501984
HONDAXR 3501985
HONDAXR 3501986
HONDAXR 3501987
HONDAXR 500R1979
HONDAXR 500R1980
HONDAXR 500R1981
HONDAXR 500R1982
HONDAXR 500R1983
HONDAXR 500R1984
HONDAXR 500R1985
HONDAXR 600R1983
HONDAXR 600R1984
HONDAXR 600R1985
HONDAXR 600R1986
HONDAXR 600R1987
HONDAXR 600R1988
HONDAXR 600R1989
HONDAXR 600R1990
YAMAHAWR 2502000
YAMAHAWR 2502001
YAMAHAWR 2502002
YAMAHAWR 2502003
YAMAHAWR 2502004
YAMAHAWR 2502005
YAMAHAWR 2502006
YAMAHAWR 250F2001
YAMAHAWR 250F2002
YAMAHAWR 250F2003
YAMAHAWR 250F2004
YAMAHAWR 250F2005
YAMAHAWR 250F2006
YAMAHAWR 250F2007
YAMAHAWR 250F2008
YAMAHAWR 250F2009
YAMAHAWR 250F2010
YAMAHAWR 250F2011
YAMAHAWR 250F2012
YAMAHAWR 250F2013
YAMAHAWR 250F2014
YAMAHAWR 250F2015
YAMAHAWR 250F2016
YAMAHAWR 250F2017
YAMAHAWR 250F2018
YAMAHAWR 250F2019
YAMAHAWR 400F1999
YAMAHAWR 400F2000
YAMAHAWR 400F2001
YAMAHAWR 400F2002
YAMAHAWR 426F1999
YAMAHAWR 426F2000
YAMAHAWR 426F2001
YAMAHAWR 426F2002
YAMAHAWR 450F2003
YAMAHAWR 450F2004
YAMAHAWR 450F2005
YAMAHAWR 450F2006
YAMAHAWR 450F2007
YAMAHAWR 450F2008
YAMAHAWR 450F2009
YAMAHAWR 450F2010
YAMAHAWR 450F2011
YAMAHAWR 450F2012
YAMAHAWR 450F2013
YAMAHAWR 450F2014
YAMAHAWR 450F2015
YAMAHAWR 450F2016
YAMAHAWR 450F2017
YAMAHAWR 450F2018
YAMAHAWR 450F2019
YAMAHAYZ 1251999
YAMAHAYZ 1252000
YAMAHAYZ 1252001
YAMAHAYZ 1252002
YAMAHAYZ 1252003
YAMAHAYZ 1252004
YAMAHAYZ 1252005
YAMAHAYZ 1252006
YAMAHAYZ 1252007
YAMAHAYZ 1252008
YAMAHAYZ 1252009
YAMAHAYZ 1252010
YAMAHAYZ 1252011
YAMAHAYZ 1252012
YAMAHAYZ 1252013
YAMAHAYZ 1252014
YAMAHAYZ 1252015
YAMAHAYZ 1252016
YAMAHAYZ 1252017
YAMAHAYZ 1252018
YAMAHAYZ 1252019
YAMAHAYZ 1252020
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 2502020
YAMAHAYZ 250F2001
YAMAHAYZ 250F2002
YAMAHAYZ 250F2003
YAMAHAYZ 250F2004
YAMAHAYZ 250F2005
YAMAHAYZ 250F2006
YAMAHAYZ 250F2007
YAMAHAYZ 250F2008
YAMAHAYZ 250F2009
YAMAHAYZ 250F2010
YAMAHAYZ 250F2011
YAMAHAYZ 250F2012
YAMAHAYZ 250F2013
YAMAHAYZ 250F2014
YAMAHAYZ 250F2015
YAMAHAYZ 250F2016
YAMAHAYZ 250F2017
YAMAHAYZ 250F2018
YAMAHAYZ 250F2019
YAMAHAYZ 250F2020
YAMAHAYZ 250FX2015
YAMAHAYZ 250FX2016
YAMAHAYZ 250FX2017
YAMAHAYZ 250FX2018
YAMAHAYZ 250FX2019
YAMAHAYZ 250X2016
YAMAHAYZ 250X2017
YAMAHAYZ 250X2018
YAMAHAYZ 250X2019
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 400F1999
YAMAHAYZ 4262000
YAMAHAYZ 4262001
YAMAHAYZ 4262002
YAMAHAYZ 426F2000
YAMAHAYZ 426F2001
YAMAHAYZ 426F2002
YAMAHAYZ 450F2003
YAMAHAYZ 450F2004
YAMAHAYZ 450F2005
YAMAHAYZ 450F2006
YAMAHAYZ 450F2007
YAMAHAYZ 450F2008
YAMAHAYZ 450F2009
YAMAHAYZ 450F2010
YAMAHAYZ 450F2011
YAMAHAYZ 450F2012
YAMAHAYZ 450F2013
YAMAHAYZ 450F2014
YAMAHAYZ 450F2015
YAMAHAYZ 450F2016
YAMAHAYZ 450F2017
YAMAHAYZ 450F2018
YAMAHAYZ 450F2019
General Product Group
Chain & Sprockets
General Product Type
Sprockets & Components (Rear)
Variant Id
277913
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Dirt Racing Steel Rear Sprocket - 42 Tooth, 520 Chain, Double Drilled

This high-quality steel rear drive sprocket is designed for optimal performance and durability. Featuring 42 teeth and a 520 chain size, it offers a reliable upgrade for your motorcycle's drivetrain. The sprocket is constructed from C45 high-carbon steel, ensuring robustness and longevity. Each sprocket undergoes heat treatment and sandblasting to reduce surface tension, meeting or exceeding the highest industry standards for motorcycle components.

This sprocket offers a unique double drilled design with two sets of fixing holes: countersunk (CSK) and plain, providing versatile installation options. It is finished in either powder-coated black or bright zinc plated silver (BZP), as shown in the product image. As a high-quality replacement part, it comes with a guarantee of satisfaction.

Key Features:

  • Material: C45 High-Carbon Steel
  • Tooth Count: 42
  • Chain Size: 520
  • Design: Double Drilled (Countersunk & Plain fixing holes)
  • Finish: Powder Coated Black or Bright Zinc Plated (BZP)
  • Manufacturing: Heat treated and sandblasted
  • Standards: Meets or exceeds motorcycle industry quality standards
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.

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