
The EK/PBR 520M3 13/50 chain kit is a transmission set designed for motocross use: a chain with a pitch of 520, a 13-tooth sprocket, and a 50-tooth steel rear sprocket (standard sprocket). Intended for off-road conditions, this kit brings together the essential components to renew the transmission of a motocross bike and regain reliable performance.
This kit is aimed at motocross riders looking for a robust transmission for demanding use: sprocket, rear sprocket, and chain are provided for a complete installation. Be sure to check the fit and perform regular maintenance (tension, lubrication, and link inspection) to maximize the longevity of the set. Compatible notably with the HONDA CR 250 R (ME03) 2004 — check the mounting specifications before installation.