CushCore Pro Tire Insert - 29", Single maintenance Steerer - Is the outside

Steerer - Is the outside diameter of the fork steer tube on your bike

Larger visibility area than other style mirrors

which has the proper threading and spacing

Chain Wrap Capacity (teeth)-45

CushCore Pro Tire Insert - 29", Single maintenance Steerer - Is the outsideHow Cushcore Works CushCore is based on a new concept: Tire Suspension. Any suspension system has a spring and a damper, and with CushCore, pressurized air in the tire is the spring and the CushCore tire insert is the damper. Also like traditional suspension, a constant damping force wouldnt work. It has to be dynamic. Suspension should be supple on small bumps but firm on big hits. CushCore responds differently depending on the tire loading scenario.