standard trial front 21" like the dunlops. Reason is its a horse track and they dont want to have to fix it up afterwards.. not other supp reg " no celibratory donuts"
hehehehe
Foss im assume ing its any Twin in a FT configuration. would have rode my FT but mine are all 2 smokers, so im going to run in the 2 vavle on a 20-21T front if my primary makes the distance and if i can find a 20-21 front sprock :O)