The CycleOps Trainer Skewer is a sturdy steel skewer that will keep you pedaling indoors all winter long. If your trainer will not fit over your bike's skewer, this skewer is the answer for you. This is a must-have if you use alloy, carbon, or plastic skewers! FEATURESRecommended for use with CycleOps TrainersProtects your bicycle's stock skewer from wear and tear