Campagnolo Super Record, 11-speed, 4-Arm, 112/145 mm BCD Chainring as of 2015

Specifications: Application: Road, Cyclocross Attachment: 112 mm bolt circle diameter, 4-arm, 145 mm bolt circle diameter, 4-arm Teeth: 34 t, 36 t, 39 t, 50 t, 52 t, 53 t Gearing: 11-speed Technical Information: Combinations: 34-50 t, 36-52 t, 39-53 t Mate