
RENTHAL 520R1 Chain Kit 14/48 Standard — manufacturer reference 484349. Designed for motocross use, this kit combines a 520 R1 chain in a gold/black finish with an ultra-lightweight rear sprocket featuring a mud-shedding profile.
The aluminum sprocket reduces unsprung mass, enhancing the rear wheel's response, while its mud-shedding design minimizes dirt buildup for smoother power delivery. The non-sealed R1 chain provides more direct contact and less internal friction, but requires more frequent maintenance: lubrication and tension checks should be performed more often than with an O-ring chain.
Exemplary compatibility with Yamaha YZ 450 F (CJ03 2003 and CJ05 2004). An ideal kit for motocross riders looking for a reliable, lightweight, and easy-to-maintain setup between rides.