EK/PBR 428ZVX Chain Kit 14/49 - Ultra-Light Sprocket
Designed for the motocross world, this EK CHAIN kit combines the ZVX chain — a high-strength premium range — with an ultra-light aluminum sprocket. Engineered to withstand the demands of off-road riding (repeated jumps, changes in RPM, abrasions), it offers a balance between weight, longevity, and ease of maintenance without unverifiable promises.
- Chain type: 428 ZVX (steel/steel)
- Sprocket/crown ratio: 14/49 (14-tooth sprocket / 49-tooth crown)
- Number of links: 124
- Pitch: 428
- Sprocket material: Ultra-light aluminum — reduced unsprung mass for sharper handling
- Weight: 1.15 kg for 100 links (manufacturer reference)
- Durability index: 2700 (for 100 links, indicative value)
This kit is aimed at motocross riders looking for a robust transmission that is easy to install and suitable for high-torque bikes. Compatible with several mini and small-displacement motocross models (e.g., Husqvarna TC 85 Big Wheels and KTM 105 SX), it is a serious option for replacing a worn chain or modifying the final drive ratio for off-road use.
