Outside of the actual straight gears themselves the actual bell material on the treat set is much nicer than I've seen on oem bells. Idk how factory KTM compares, I've only experienced China KTM. On the vdm site it looks like they have cnc'd bells, I bet those could be had with reverse gear or with no gear. I've no experience with their bells, the set I got was just the clutch gear & main gear on shaft. The treats ones are rad if the bell could be had independently of gear.