Renthal Aluminium Ultra-Light Self-Cleaning 191U - 420 SprocketRef : RT00093A / 1075626007

Renthal Ultra-Light 191U - Mud-Resistant Sprocket 420 (53 Teeth)

Designed for dirt and wet conditions, the Renthal Ultra-Light 191U sprocket combines lightweight construction with durability for motocross, SX, and enduro machines. Machined from 7075 T6 aluminum, its specific tooth design and mud-resistant profile facilitate the expulsion of debris, limit chain fouling, and optimize chain-sprocket contact during muddy rides.

• Manufacturer Reference: 191U-420-53GESI
• Material: Anodized 7075 T6 Aluminum (silver finish)
• Number of Teeth: 53
• Chain Pitch: 420
• Type: Standard, mud-resistant profile

Strategic cutouts reduce mass without compromising the rigidity or durability of the part. Anodization hardens the surface and protects against abrasion while providing a polished finish. On the track, this sprocket results in reduced unsprung inertia and a more responsive acceleration — benefits appreciated on a KX85 or any small-displacement competition-oriented bike.

Cross-oriented compatibility: ideal for KAWASAKI KX 85 (recent models) and other bikes equipped with a 420 pitch. A reliable option for those seeking performance, lightweight design, and improved mud clearance without compromising robustness.