
RENTHAL Ultra-Light Mud-Resistant Aluminum Sprocket 441U - 428 (Ref. 441U-428-49GPBU)
Specifically designed for motocross and enduro riding, this Renthal Ultralight™ sprocket combines lightness and strength. Machined from 7075 T6 aluminum, it features a tooth profile designed to promote mud evacuation and limit build-up between the chain and sprocket. Strategic cutouts reduce mass without compromising mechanical integrity, and surface anodization enhances the hardness and aesthetics of the part.
This sprocket is aimed at riders looking for a lightweight and specific part for muddy or soft terrains. Designed to fit 428 transmissions, it is particularly suitable for small displacement motocross bikes and MX/SX setups where weight savings and transmission cleanliness are essential.
Examples of compatible models (common references): KTM 85 SX STD WHEELS 17/14, GAS GAS MC 85 19/16, HUSQVARNA TC 85 BIG WHEELS 19/16.