Steel SprocketsJT Steel Sprockets are manufactured using only the finest grade of C49 high carbon steel for the rear sprockets, and SCM420 chromoly steel alloy for the front sprockets. The JT Steel Sprockets range now...
Renthal Ultralight? rear chainwheels are manufactured to extremely tight tolerances from 7075 T6 aluminium alloy which is 66% lighter than steel, yet incredibly durable. Their advanced tooth profile, concentricity...