Shimano Cassette Spacer - 3.5mm

Assembling a new wheel late at night and found out the spacer provided by the bike shop to properly fit my 7 speed cassette on an 8 speed rim was too thin.

The spacer is under no real stress as the cassette meshes with splines on the wheel. So, I printed one!

This one is almost embarrassingly simple. Just a ring. But it fits well enough to get the job done!