Renthal Aluminium Ultra-Light Self-Cleaning 441U - 428 SprocketRef : RT00112A / 1075646004

Manufacturer Reference: 441U-428-48GPBU

The RENTHAL Ultra-Light mud-resistant 441U crown made of aluminum is designed for motocross riders looking to lighten their transmission without sacrificing strength. Machined from 7075 T6 aluminum, it combines mechanical strength and low weight through strategic cutouts and precision machining.

• Material: Anodized 7075 T6 aluminum (hardened surface and durable finish).
• Pitch: 428 — compatible with 428 chains.
• Teeth: 48 teeth, mud-resistant profile optimized for dirt and debris evacuation.
• Type: Standard, intended for MX / SX / Enduro / Cross use.
• Color: Blue.

The tooth profile facilitates mud evacuation and limits friction between the chain and the crown, contributing to smoother transmission and controlled wear. Anodization provides surface protection and a sleek look on the swingarm. The cutouts have been designed to reduce weight without compromising structural strength.

Suitable for riders looking to optimize their machine's performance in soft terrain, this crown is particularly compatible with 85 cc machines such as KTM 85 SX, GAS GAS MC 85, and HUSQVARNA TC 85 (check compatibility based on model and year).