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RENTHAL

Renthal Ultralight Rear Sprocket (47 Tooth, Silver) 150U-520-47GBSI - Honda / Yamaha 1988-2026

Renthal Ultralight Rear Sprocket (47 Tooth, Silver) 150U-520-47GBSI - Honda / Yamaha 1988-2026

Regular price $89.84 USD
Regular price $99.82 USD Sale price $89.84 USD
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Renthal Ultralight Rear Sprocket (47 Tooth, Silver) 150U-520-47GBSI - Honda / Yamaha 1988-2026

Product Description

Upgrade your machine's final drive system with the Renthal Ultralight Rear Sprocket, engineered for maximum power transfer and reduced rotational mass. Built for riders who demand top-tier performance on the track or trail, this component combines advanced manufacturing techniques with high-grade materials to optimize your bike's acceleration.

Precision CNC-machined from specially enhanced 7075-T6 aluminum, this sprocket provides an exceptional strength-to-weight ratio, coming in significantly lighter than stock steel alternatives without compromising structural integrity. The specialized tooth profile minimizes friction and chain wear, ensuring smooth operation and dependable durability ride after ride.

Top Features: Renthal Ultralight Rear Sprocket

  • CNC-machined from specially enhanced 7075-T6 aluminum for maximum durability and strength-to-weight ratio.
  • Computer-aided ultra-light design reduces unsprung weight to drastically improve power transfer and acceleration.
  • Engineered to be 33% lighter than standard steel sprockets while maintaining elite structural integrity.
  • Specialized tooth profile allows the chain to roll easily on and off for extended wear life and decreased mechanical noise.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Year Range Vehicle Brand Vehicle Model & Sub-Model
1988-1989 Honda XR250R
1999 Yamaha YZ400F
1999-2000 Yamaha WR400F
1999-2026 Yamaha YZ125
1999-2026 Yamaha YZ250
2000 Yamaha WR 426 F
2000-2002 Yamaha YZ426F
2001-2002 Yamaha WR426F
2001-2009, 2011-2013, 2015-2026 Yamaha WR250F
2001-2026 Yamaha YZ250F
2003-2009, 2011-2026 Yamaha WR450F
2003-2026 Yamaha YZ450F
2015-2022, 2025-2026 Yamaha YZ250FX
2016-2019, 2021-2022, 2025-2026 Yamaha YZ250X
2016-2021, 2024-2026 Yamaha YZ450FX
2020-2022, 2025-2026 Yamaha YZ125X

Frequently Asked Questions

Q: Is this sprocket lighter than standard OEM steel parts?
A: Yes, it is constructed from enhanced 7075-T6 aluminum, making it roughly 33% lighter than steel sprockets to minimize unsprung weight.

Q: Does this sprocket require any special chain size?
A: Yes, this sprocket is designed specifically for use with a 520 chain size setup.

Expert Pro-Tip: Always replace your chain and front sprocket at the same time as your rear sprocket. Installing a new aluminum rear sprocket onto a worn, stretched chain will cause premature hook wear and drastically shorten the lifespan of the components.

Recommended Pairings:

About Moto-House MX

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. We pride ourselves on great customer service, and every item ships FAST - straight to your door.

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