The Renthal UltraLight Rear Chainwheel is a CNC-machined aluminum rear sprocket designed for select Honda CRF applications, including the 2013–2022 Honda CRF 250L, CRF 250L Rally, CRF 250L M, and CRF 300L. This 520 chainwheel features 40 teeth and a hard-anodized finish for durable performance in powersports applications.
Manufactured from 7075 T6 aluminum, the Renthal UltraLight rear chainwheel is engineered for reduced weight compared with steel sprockets while maintaining a high-strength base material. Computer-engineered and tested for precise fitment, concentricity, and load dispersion, it uses tooth profiling intended to support efficient power transfer.
The hardwearing surface treatment helps protect the sprocket during use, while the lightweight aluminum construction makes it suitable for riders seeking a performance-oriented replacement rear sprocket. Manufacturer part number: 154W-520-40GRHA. Vendor part number: 154W-520-40GRHA.
Features:
- Brand: Renthal
- Model: UltraLight Rear Chainwheel
- Fitment: Select 2013–2022 Honda CRF 250L, CRF 250L Rally, CRF 250L M, and CRF 300L applications
- Size: 520 chain size with 40 teeth
- Material: CNC-machined 7075 T6 aluminum
- Finish: Hard anodized
- Engineering: Computer engineered and tested for precise fitment, concentricity, and load dispersion
- Tooth profiling: Designed to support maximum power transfer
- Manufacturer part number: 154W-520-40GRHA
- Vendor part number: 154W-520-40GRHA
Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1