Drivetrain› Belt and Chain Drive
Renthal
Renthal 22-23 Vertigo JB-R 280/DL-R225-300/Nitro 250-300 Rear Sprocket Grooved - Blk 520-39P Teeth
SKU: R0A9 141U-520-39GPBK
Beginner — under 30 min
Description
Constructed from 7075 T6 aluminum, this UltraLight rear chainwheel is CNC machined to tight tolerances and is 66% lighter than steel. It is computer engineered and tested for precise fitment, concentricity, and load dispersion, with tooth profiling to maximize power transfer.
Fitment
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Specifications
| Brand | Renthal |
| Part Number | R0A9 141U-520-39GPBK |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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