Upper chain roller from Polisport.
Fully enclosed ball bearing chain rollers for maximum service life and minimum wear. Replaces original chain roller.
The best sustainability on the market. Specially developed outer casing that keeps both water and dirt away from the bearing.
Fully enclosed ball bearing chain rollers for maximum service life and minimum wear. Replaces original chain roller.
The best sustainability on the market. Specially developed outer casing that keeps both water and dirt away from the bearing.