Mikuni performance in a slightly smaller size. The little brother to the Mikuni 24 Flatslide that is found on all serious race bikes.
Use the same jets as the TM series carb. Main jets available here. Comes with an installed #70 main jet.
Clamp size is 22.75 with the included plastic shim, and 25.75mm without it. Uses a 32mm filter, same as a Dellorto PHBG.