2Bros Parts

REAR SPROCKET STEEL 45 [JTR301/210.45] 520, DOUBLE DRILLED JTR301, JTR210

£14.90

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UK delivery £4.99, free over £60 2–4 business days

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Rear Drive Sprocket SR301-45.S.DR is a 45-tooth steel sprocket for 520 chain systems. It is made with C45 high-carbon steel, heat-treated, and sandblasted. Features dual bolt patterns including Countersunk 8.5 mm and Plain 10.5 mm. Available in powder-coated black or bright zinc plating (silver BZP). Meets or exceeds motorcycle industry compound standards and is a direct OEM replacement. Specifications: Tooth Count 45, Chain Size 520, Mounting Dual fitment (CSK 8.5 mm and CTB 10.5 mm). Part No. SR301-45.S.DR. Cross-Reference OEM Part Numbers: JTR301.45, JTR210.45, L17-0245, MX-80345.

Specifications
SKU
SR301-45.S.DR
Brand
Dirt Racing
Availability
In Stock (15)

Fitments (23)

MakeModelYear
HONDACRF L 2502013
HONDACRF L 2502014
HONDACRF L 2502015
HONDACRF L 2502016
HONDAXR 2501996
HONDAXR 2501997
HONDAXR 2501998
HONDAXR 2501999
HONDAXR 2502000
HONDAXR 2502001
HONDAXR 2502002
HONDAXR 2502003
HONDAXR 2502004
HONDAXR 4001996
HONDAXR 4001997
HONDAXR 4001998
HONDAXR 4001999
HONDAXR 4002000
HONDAXR 4002001
HONDAXR 4002002
HONDAXR 4002003
HONDAXR 4002004
HONDAXR 4002005
General Product Group
Chain & Sprockets
General Product Type
Sprockets & Components (Rear)
Variant Id
278177
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Dirt Racing Rear Drive Sprocket - 45 Tooth, 520 Chain, Double Drilled

Enhance your motorcycle's drivetrain with this high-quality 45-tooth rear drive sprocket from Dirt Racing. Designed for 520 chain systems, this sprocket offers robust performance and durability for both off-road and road applications. It serves as a direct OEM replacement, ensuring a precise fit and reliable operation.

Key Features:

  • Material: Constructed from C45 high-carbon steel for superior strength and longevity.
  • Heat Treatment & Finish: Undergoes heat treatment and sandblasting to reduce surface tension, followed by a durable finish in either powder-coated black or silver zinc plating for corrosion resistance.
  • Dual Mounting Options: Features two bolt hole patterns to accommodate various setups: Countersunk (CSK) 8.5 mm and Plain (CTB) 10.5 mm.
  • Chain Compatibility: Specifically designed for 520 pitch chains.
  • Tooth Count: 45 teeth for optimized gear ratio.
  • Industry Standards: Meets or exceeds motorcycle industry compound standards for performance and safety.

Specifications:

  • Tooth Count: 45
  • Chain Size: 520
  • Mounting: Dual fitment (CSK 8.5 mm and CTB 10.5 mm)
  • Part Number:

Cross-Reference Numbers:

  • JTR301.45
  • JTR210.45
  • L17-0245
  • MX-80345
Before you buy

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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

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