These are the race face turbine 10 speed 2436 chainrings after two years of engineering work and rigorous testing the all new turbine rings are ready to ride completely redesigned from the ground up these rings shift like nothing else as with race faces previous team and race rings the turbine rings are made in canada from 7075 aluminium so they are built to last offering unparalleled form and function the new turbine rings are second to none and come standard on our deus and next cr