Campagnolo Centaur Power-Torque Triple Crankset Length: 172.5 mm Speeds: 10 Speed Rings: 52/39/30 BB Interface: Power-Torque. Power-Torque is a discontinued standard at this time, but you can still find a huge variety of new Power-Torque BB's to fit your frame online. We routinely see English and Italian threaded bottom brackets for $25-$30 new and press fit varieties even cheaper. Try Chain Reaction in the UK or Performance Bicycle. Material: Aluminum Excellent opportunity to grab a NEW-in-box Centaur Triple 10 Speed crank. This crank would also work for older triple systems where period correct replacement cranks are scarce. The 10 speed is technically what it is designed for, but it should work fine for 9 Speed systems as well, Campagnolo and other brands.