Cross Chainring sl Promax Direct Mount chainrings are

Promax Direct Mount chainrings are made to be lightweight yet extremely durable to handle the torque and stress of modern BMX racing and other single ring applications

reliable power measurement is practically a requirement these days

and frames with seat tubes that have bottle bosses

tunable travel—20mm front/30mm rear—Future Shock Technology absorbs bump forces to boost your control and capability while retaining the efficiency and responsiveness of a rigid frame

Cross Chainring sl Promax Direct Mount chainrings areAll City Cross Chainrings. The perfect compliment to your All City cross bike. Compatible with 8, 9 and 10 speed chains No ramps or pins; perfect for single ring use Excellent replacements for older rings