Campagnolo record 10 speed road cassettesteel and titanium for an ideal sprocket set 8 sprockets of the record sprocket set are in fact made of steel while the remaining 2 are in titanium specifications 8 steel and 2 titanium nickel chromed finish for steel sprocketslight alloy supports for the final two triplets10s timing10s tooth machining thread 27x1featuresevolved sprocket timing double chain for the larger sprockets redesigned toothing please note lockring not included buy campagnolo r