SRAM PG-1210 Eagle 12-Speed Cassette

The SRAM PG-1210 Eagle 12-Speed Cassette packs an 11-50t wide range spread so you've got the gears to ride pretty much anywhere, from grinding fire roads to techy singletrack, without ever feeling boxed in. Splined driver body compatibility means it plays nice with wheels from a huge range of manufacturers, so finding the right fit isn't a headache. And if you're rolling an E-MTB, the replaceable "speed limit" gears mean you're not stuck replacing the whole cassette when one gear wears out, just swap the part that needs it and keep sending it.