Renthal Ultralight Rear Sprocket for 428 Chain
Renthal Ultralight Rear Sprocket for 428 Chain
About this product
About this product
Elevate your motorcycle's performance with the Renthal Ultralight Rear Sprocket, engineered for exceptional durability and reduced unsprung weight. This premium 428 chain sprocket delivers a significant upgrade for serious riders.
Description
The Renthal Ultralight Rear Sprocket is meticulously CNC-machined from a specially enhanced 7075-T6 aluminum alloy, a material renowned for its high strength-to-weight ratio. This advanced construction ensures superior durability while making the sprocket an impressive 66 percent lighter than comparable steel sprockets. Designed for optimum power transfer and longevity, this Renthal 428 Ultralight Rear Sprocket features innovative machined self-cleaning mud grooves at each tooth. These grooves actively prevent mud and debris buildup, significantly increasing wear resistance and extending the lifespan of both the sprocket and your chain. As a critical component of your motorcycle's drive system, this 7075-T6 aluminum sprocket offers an unparalleled combination of lightweight performance and robust reliability, making it an ideal choice for riders seeking a competitive edge. Its precise engineering guarantees a perfect fit and consistent performance, contributing to a smoother and more efficient ride. Whether for racing or spirited trail riding, the Renthal Ultralight Rear Sprocket stands as a testament to cutting-edge motorcycle parts design.
Features & Highlights
- Premium 7075-T6 Aluminum Construction: Precision CNC-machined from aerospace-grade 7075-T6 aluminum alloy, ensuring maximum strength, rigidity, and resistance to wear under extreme riding conditions.
- Exceptional Ultralight Design: Engineered to be 66% lighter than standard steel sprockets, drastically reducing unsprung weight for improved acceleration, braking, and suspension performance.
- Enhanced Durability & Longevity: Despite its lightweight nature, this sprocket offers incredible durability, built to withstand the rigors of off-road and high-performance riding.
- Self-Cleaning Mud Grooves: Features intelligently machined mud grooves on each tooth, actively preventing dirt and debris buildup to maintain optimal chain engagement and extend the life of your entire drive system.
- Optimized Power Transfer: Designed for the 428 chain size with 50 teeth, providing efficient and consistent power delivery from your engine to the rear wheel.
- Distinctive Purple Finish: Adds a touch of custom style to your motorcycle's drivetrain with its eye-catching purple anodized finish.
Technical Specifications
- Product Name: Sprocket
- Style: Ultralight
- Type: Drive
- Mounting Position: Rear
- Material: 7075-T6 Aluminum
- Chain Size: 428
- Tooth Count: 50
- Color/Finish: Purple
- Units: Each
- Vendor Part Number: 441U-428-50GPPE
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Specifications
441U-428-50GPPE
Purple
Sprocket
Ultralight
294 mm
18 mm
313 mm
Rear
7075-T6 Aluminum
428
Drive
Each
Reviews


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.
Based in Denmark
Fast customer support
Over 100.000 Products
2-Year Full Warranty
Your peace of mind is our priority. Every product in our shop comes with a comprehensive 2-year warranty, so you can hit the road with full confidence.
Support in Danish, Swedish, German & English
Whether you are upgrading your exhaust or choosing a new helmet, our team of seasoned riders is ready to provide professional guidance for your specific bike.
Free Shipping Over 200€ (EU)
Shop your favorite gear without worrying about extra costs. We offer free shipping on all orders over 200€ (EU), ensuring your parts reach you safely and affordably.
Authorized Parts Europe Dealer
As a certified Parts Europe supplier, we guarantee 100% authentic, high-quality motorcycle parts and accessories directly from the world's leading manufacturers.

