FORWARD ST-10 chain tensioners have been designed to avoid derailing during your accelerations, jumps and manuals.
A must have parts when you ride BMX Racing. These chain tensioners are designed for wheels with 10mm axle and for horizontal frame dropouts. . The 2 fixing holes and the tension adjustment bolts will allow a precise adjustment of the chain tension . The chain tensioner have lazer marks on both sides of the tensioner to control the tension.
Sold in pairs.