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Renthal 520 Ultralight Aluminum Rear Sprocket 51T Silver #150U-520-51GBSI

Product Details

Renthal Ultralight rear chain wheels are manufactured to extremely tight tolerances from a special material developed to withstand the rigors of supercross, motocross and enduro racing. The 7075 T6 aluminum alloy rear chain wheels are 66% lighter than steel, yet incredibly durable. Their advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long-life. Renthal's combination of a very high strength base material and an exceptionally hardwearing surface result in significantly increased chain wheel life over other brands.

Features

  • Renthal Ultralight rear chainwheels are 66% lighter than steel
  • Precision CNC manufactured to extremely tight tolerances
  • High strength specially enhanced 7075 T6 aluminum alloy
  • Computer aided Ultralight design gives the maximum reduction of unsprung weight at the rear wheel, to give maximum power transfer
  • Self-cleaning mud grooves between every tooth on both sides prevent dirt build up
  • Renthal Ultralight chainwheels are used by more factory motocross and supercross teams than any other chainwheel in the world

Fit Guide

Model
Ultralight Aluminum Rear Sprocket
Chain Pitch
520
Color
Silver
Country Of Origin
United Kingdom
Finish
Anodized
Material
Aluminum
Position
Rear
Style
Ultralight
Teeth
51
Width
520

Product Fitment

This item fits the following applications:

Honda XL350R 1984-1985
Honda XR200R 1984-1988, 1990-1991, 1993-2002
Honda XR250R 1984-1989
Honda XR350R 1983-1985
Honda XR500 1983-1984
Honda XR500R 1983-1984
Honda XR600R 1985-1986
Yamaha WR250F 2020-2021
Size Over Standard:
Stock
Yamaha WR250F 2020-2021
Size Over Standard:
N/A
Yamaha YZ125 1999-2025
Yamaha YZ250 2-Stroke 1999-2016, 2021-2022, 2024
Yamaha YZ250FX 4-Stroke 2015-2021
Size Over Standard:
Stock
Yamaha YZ250FX 4-Stroke 2015-2021
Size Over Standard:
N/A
Yamaha YZ450F 2005
Size Over Standard:
Stock
Yamaha YZ450F 2005
Size Over Standard:
N/A