You don’t need to change to the swingarm sensor to run 27.5. People get the swingarm sensor so they can derestrict the bike. My first gen Voima had a rim magnet and I ran it full 27.5 without issue. My 2nd Voima race ID is also full 27.5, but with a swingarm magnet sensor.Went full 29'er - no particular reason why. Open to be convinced (though it'll mean adding the swingarm sensor and rotor magnet if I change). Both sound fun.