
EK/PBR 520SRX2 13/50 Chain Kit - ultra-light sprocket by EK CHAIN: a chain kit dedicated to off-road and all-terrain practices. Designed for motocross riders seeking a complete and lightweight set, this kit combines the 520SRX2 chain with a 13-tooth sprocket and an ultra-light 50-tooth aluminum sprocket, ready to replace your drivetrain.
Practical for a replacement installation on motocross bikes (see compatible references like the SUZUKI RMX 250 1994-1999), this kit facilitates the restoration of the drivetrain while minimizing unsprung weight thanks to its aluminum sprocket. Be ready for the track: check the number of links and adjust the length if necessary before installation.