
PBR draws on its expertise in competition to offer sprockets and crowns designed for demanding riders. This PBR crown reference 4357 made of C45 steel embodies the fundamentals of a reliable transmission part that is easy to install on rear ends equipped with 525.
Designed to replace the original crown on roadster or cross machines, it is intended for both road and off-road use depending on the installation and configuration. C45 steel provides good mechanical resistance, suitable for the demands of the transmission: engine torque, acceleration, and repeated efforts. Its black finish reduces glare and makes it easier to visually identify wear.
Before installation, check compatibility with your model and adhere to the manufacturer's torque specifications. Examples of compatible motorcycles based on usage references: HONDA CMX 1100 REBEL (2025), HONDA CBR 650 R (2024), HONDA CB 650 R (2024). For optimal longevity, regularly maintain the chain and sprocket, and check the alignment and condition of the teeth.