Renthal Aluminium Ultra-Light Self-Cleaning 150U - 520 SprocketRef : RT00083A / 1075619002

RENTHAL Ultra-Light Mud-Resistant Sprocket 150U - 520 (ref. 150U-520-42GBSI)

Designed for Cross, MX, and Enduro riding, this RENTHAL Ultralight sprocket is machined from 7075 T6 aluminum to combine lightness and strength. Its specific tooth profile and strategic cutouts promote mud evacuation and reduce chain snagging, resulting in a sharper performance when conditions deteriorate.

• Material: anodized 7075 T6 aluminum (enhanced surface finishes)
• Number of teeth: 42
• Chain pitch: 520 (standard)
• Color: silver
• Type: standard, mud-resistant

The lightweight cutouts are positioned to minimize mass without compromising load resistance; the anodization enhances surface durability and aesthetics. The result: a component designed to optimize torque transmission, limit friction losses, and reduce unsprung weight — valuable assets during corner exits or demanding accelerations.

Compatible with 520 systems, this sprocket fits many off-road machines (e.g., Yamaha YZ 450 F, Fantic XX 125, Yamaha WR 450 F) — check compatibility with your sprocket and spacers before installation.