What's included in the single axle kit:
Axle in 1.0/1.5/1.75 thread pitch x1pcs
Axle receiver 1pcs
2mm hex key x1pcs
1mm spacer x1pcs
2mm spacer x2pcs
4mm spacer x1pcs
Conical spacer x1pcs
Note:
You should use the right spacers to adjust the installing position to keep the wheel at the effective working area of the trainer.