These Power-Torque bottom bracket cups are for use with Campagnolo Power-Torque chainsets, where the single piece axle is attached to the right-hand arm of the chainset. The right-hand bearing is already attached to the axle of the chainset, the other is pre-inserted in the left-hand cup.Installation is quick and simple as a result of the pre-assembled bearings and the fact that no dedicated tool is required.**FEATURES:*** Campagnolo Original Spare Part* Lightweight Construction* Super Smooth Bearings* Quick and simple installation**BOX CONTENTS*** 2 x Power-Torque Cups* Left hand bearing (pre-installed)* Right Hand External Bearing Circlip* Left Hand Crush Washer* Left Hand Bearing Seal* Warranty Information* User Manual**CAMPAGNOLO PART NUMBERS*** CPB007A: OC13-CEI (Italian)* CPB008A: OC13-CEG (BSA)* CPB009C IC15-PT41 (86.5x41)* CPB010C: IC15-PT42 (68x42)* CPB011C: IC15-PT46 (68x46)* CPB016C: IC15-PT386 (86.5 x46)* CPB018C: IC15-PT7342 (73x42)