Single speed or track bikes will need either two of the Standard Cone Cups (shown above) or two of the Track Cone Cups which are slightly larger than the Standard Cone Cup. Current model Kinetic trainers come with one Standard cup and one Slotted Cup. Bikes with standard 15mm axle nuts will work with the Standard Cone Cup on both sides. (image above)
Check to see if the axle nuts fit securely inside the Standard Cone Cup (image below). Some track bikes have axle nuts that are larger or do not fit well in the Standard Cone Cup that comes on the trainer. Those bikes will require our Track Cone Cups on both sides.