12-speed Shimano Micro Spline cassettes

Every cassette here mounts on a Shimano Micro Spline body and shifts 12 speeds. Two of the three things that decide a cassette, then — what's left is the chain family it needs, the gearing range you want, and that your rear derailleur can wrap it.

Got here without checking your freehub body? Our guide to identifying your freehub is worth a minute first — the body is the half of this that a wrong guess makes unridable.