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Renthal Rear sprocket R 428 52 teeth Si Ul Sc 121U-428-52GPSI
Renthal Rear sprocket R 428 52 teeth Si Ul Sc 121U-428-52GPSI
Renthal Rear sprocket R 428 52 teeth Si Ul Sc 121U-428-52GPSI
Renthal Rear sprocket R 428 52 teeth Si Ul Sc 121U-428-52GPSI
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Ultralight Self-Cleaning Rear Chainwheel

  • Renthal Ultralight™ rear chainwheels are manufactured to extremely tight tolerances from 7075 T6 aluminium alloy which is 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 high strength base material and exceptionally hardwearing surface result in significantly increased chainwheel life over other brands


  • Type of part
    Transmission - Sprockets - Chains
    121U-428-52GPSI

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