Hooking this motor up to the tracks instead of the rubber tires was straightforward, and the optical encoder keeps the speed really consistent on turns. It drives sprockets and gears without any wobble too.
Christopher★★★★★
I swapped this encoder motor onto my bot to drive the rubber tracks instead of the wheels, and the optical encoder keeps the speed steady even on carpet. Tracks, sprockets, belts — it bolts up to all of them without an adapter.
Charlotte C.★★★★☆
The optical encoder tracks speed way more precisely than the plain motors I was using before, which made my line-following robot noticeably smoother. Mounting it took a bit of fiddling since the holes don't line up perfectly with my old bracket, but once it was on it ran fine with the rubber tires.