Chromag Clocker Revolution Bikes March 5, 2014 Chromag Chain Rings Clocker Chromag chainrings are CNC machined from 7075 alloy plate for ultimate durability and strength. Our unique tall-tooth profile is specifically designed for positive engagement and fewer dropped chains. The 4mm thick design with CNC pocket detail is stiff and light and perfect for 1×9, 1×10 or 1×1 setups. Features: Avilable in 32, 33, 34, 35, 36, 37 and 38 Tooth rings. 104mm BCD Weight: 50g Colours: black, pewter, red, gold, blue, purple For more information please contact your local dealer. Or us directly from our contact page.