Renthal Ultralight Rear Sprocket for 428 Chain
Renthal Ultralight Rear Sprocket for 428 Chain
About this product
About this product
Elevate your motorcycle's drivetrain performance with the Renthal Ultralight 428 Rear Sprocket. Engineered for peak efficiency and durability, this premium component significantly reduces unsprung weight, ensuring a noticeable improvement in power delivery and handling.
Description
The Renthal Ultralight 428 Rear Sprocket is meticulously engineered to provide superior performance and durability for your motorcycle. Unlike stamped alternatives, this premium rear sprocket is CNC-machined from high-strength, specially enhanced 7075-T6 aluminum, making it an astounding 33% lighter than comparable steel sprockets. This significant reduction in unsprung weight directly translates to improved power transfer, sharper acceleration, and more responsive handling, giving riders a competitive edge.
Designed with a computer-aided ultralight profile, the Renthal 49-tooth 428 Rear Sprocket optimizes strength-to-weight ratio without compromising integrity. Its innovative tooth profile is a key feature, allowing the chain to roll smoothly on and off the sprocket. This design minimizes friction, reduces drivetrain noise, and extends the lifespan of both the chain and the sprocket, ensuring consistent, efficient power delivery mile after mile. The sleek black finish adds a professional, performance-oriented aesthetic to your bike's drivetrain.
Features & Highlights
- Precision CNC-Machined Construction: Crafted from a solid block of 7075-T6 aluminum, ensuring superior strength, perfect concentricity, and exceptional durability compared to stamped sprockets.
- Ultra-Lightweight Design: Computer-aided engineering results in a sprocket that is 33% lighter than steel, drastically reducing unsprung weight for improved acceleration and handling dynamics.
- Enhanced Power Transfer: The lightweight material and precise manufacturing contribute to more efficient power delivery from your engine to the rear wheel, maximizing your bike's performance.
- Optimized Tooth Profile: Features a unique tooth design that promotes smooth chain engagement and disengagement, leading to reduced friction, quieter operation, and extended chain and sprocket life.
- High-Strength 7075-T6 Aluminum: Utilizes a specialized aluminum alloy known for its exceptional tensile strength and fatigue resistance, providing robust performance without the weight penalty of steel.
- Sleek Black Finish: A durable black finish not only protects the sprocket but also adds a stylish, performance-oriented look to your motorcycle's drivetrain.
Technical Specifications
- Type: Drive
- Style: Ultralight
- Material: 7075-T6 Aluminum
- Chain Size: 428
- Tooth Count: 49
- Color/Finish: Black
- Mounting Position: Rear
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-428-49GPBK
Black
Sprocket
Ultralight
0.254 mm
0.254 mm
0.254 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.

