Renthal
Renthal 89-01 Suzuki RM 80/ 2002 Yamaha YZ85 Rear Grooved Sprocket -Black 428-50P Teeth - 121U-428-50GPBK
- SKU:
- REN121U-428-50GPBK
- UPC:
- 765442087568
- MPN:
- 121U-428-50GPBK
- Availability:
- Regularly stocked product
Description
Are Renthal sprockets a direct replacement for my stock sprocket?
Renthal Rear Sprockets are engineered for precise bolt-on fitment, ensuring direct compatibility with your vehicle's original mounting points.
How much weight can I expect to save with a Renthal sprocket?
Achieve significantly improved acceleration and handling as Renthal sprockets are 66 percent lighter than traditional steel counterparts.
Renthal Rear Sprockets offer superior performance, boasting a 9 score for racing competition and track use due to their lightweight design. CNC machined from 7075 T6 aluminum, these sprockets are 66 percent lighter than steel, guaranteeing dramatic improvements in acceleration and handling. Experience a transformed ride with unparalleled agility and confidence.
Key Features
- CNC machined from 7075 T6 aluminum
- 66% lighter than steel
- Computer engineered and tested
- precise fitment
- concentricity
- load dispersion with tooth profiling
Why Choose the REN Rear Sprockets
Achieves quicker acceleration and improved throttle response by significantly reducing rotational mass.
Provides a smoother, more reliable power transfer for enhanced control and confidence.
Transforms your ride with a lighter, more agile feel, making handling more responsive.
Eliminates premature wear and chain drag for consistent peak performance over time.
Who Is This For?
Weekend Off-Roading — 8/10
Lighter weight improves acceleration and handling off-road.
Track / Autocross — 9/10
Reduced weight enhances acceleration and agility on track.
Drag Racing — 9/10
Significant weight reduction aids acceleration for drag racing.
Racing Competition — 9/10
Performance claim directly relates to racing advantages.
Street Performance — 8/10
Lighter weight can improve acceleration and handling.
Easy DIY Install — 7/10
Bolt-on installation type suggests straightforward fitting.
Frequently Asked Questions
Which company's chain sprocket is good for my Suzuki RM80/RM85/RM85L or Yamaha YZ80/YZ85?
Renthal offers high-performance rear sprockets engineered for your specific motorcycle. These bolt-on sprockets are CNC machined from 7075 T6 aluminum for precise fitment and superior concentricity on 1989-2021 Suzuki RM80/RM85/RM85L and Yamaha YZ80/YZ85 models. You can expect consistent peak performance from this quality component.
Is an aluminum or steel rear sprocket better for racing applications?
Aluminum rear sprockets achieve quicker acceleration and improved throttle response by significantly reducing rotational mass, making them ideal for performance-oriented riding. This Renthal sprocket, achieving a score of 9 for Racing Competition, transforms your ride with a lighter, more agile feel. Experience enhanced agility and acceleration.
What are the performance benefits of upgrading to a Renthal rear sprocket?
Upgrading to a Renthal rear sprocket provides a smoother, more reliable power transfer for enhanced control and confidence, particularly in performance scenarios. Achieving a score of 9 for Track / Autocross usage, this sprocket is designed for riders seeking enhanced acceleration and handling. Enjoy a more responsive and agile ride.
Is upgrading my stock rear sprocket to a Renthal worth the performance gains?
Upgrading to a Renthal rear sprocket is worth it for riders seeking enhanced acceleration and handling, as it eliminates premature wear and chain drag. This bolt-on component significantly reduces rotational mass, offering a lighter, more agile feel for improved handling. Invest in consistent peak performance over time.
How difficult is it to install a Renthal rear sprocket?
Installing a Renthal rear sprocket is straightforward due to its bolt-on design, making it an easy DIY upgrade. This ease of installation contributes to its score of 7 for Easy DIY Install. Enjoy precise fitment and confident performance without extensive mechanical knowledge.
Vehicle Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989–2001 | Suzuki | RM80 | Base |
| 2002–2021 | Suzuki | RM85 | Base |
| 2003–2012 | Suzuki | RM85L | Base |
| 1993–2001 | Yamaha | YZ80 | Base |
| 2002–2021 | Yamaha | YZ85 | Base |
Additional Resources
Browse More: Shop All Sprockets — Drivetrain
Warranty Information
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989-2001 | Suzuki | RM80 | Base |
| 2002-2009,2012,2015-2021 | Suzuki | RM85 | Base |
| 2003-2008,2012 | Suzuki | RM85L | Base |
| 1993-2001 | Yamaha | YZ80 | Base |
| 2002-2021 | Yamaha | YZ85 | Base |
Additional Information
Clearance Item: |
N |
MPN: |
121U-428-50GPBK |
Proposition 65: |
N |
Case Lot Quantity: |
1 |
Category: |
Drivetrain>Sprockets |
Install Type: |
Bolt-On |
Product Level: |
Premium Performance |
Weekend Off-Roading: |
8/10 |
Track / Autocross: |
9/10 |
Drag Racing: |
9/10 |
Racing Competition: |
9/10 |
Street Performance: |
8/10 |
Easy DIY Install: |
7/10 |
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