Semi Auto becuase of what I use my trike for. I think it would realyy depend on the trike, I would hate a semi auto 250r but would never have a clutch on my big red (altough I hear converting makes the motor rev alot faster)
As for wicked fingers statement belt drive has as good of a power transfer ratio as an auto theres direct contact unlike a car auto that uses a torq converter. I love my belt drive I have the clutches worked over it doesn't engage until 4000rpm and leaves the line hard.
edog check out this post if your looking for info its an article from an older dirt wheels its what converted me.
http://atvquadsquad.com/eve/ubb.x/a/...4/m/1961024481
adove all its preference no matter what you ride, just get out of the house and ride.
1983 honda 70atc, als,ot done, need throttle cable and assembly. PM me if you have this.
1985 honda es 250 big red.
85 percent restore. 10x10 douglas 190's 22-11-10 at 489's. 12x7 itp c series 24-8-12 swamp fox. some accent painting. snorkel everything and a custom PCV system. moose air filter. cobra utility exhaust. 2.5 um wheel spacers.
A trike to show up the modern utilitys
2002 scrambler 400 2x4 uni pod filter, lots of weight shaving, v force reeds, HPD race pipe, 39mm pwk or 34mm, 12-1 head, trail porting, custom clutching, hole shots on t-9s +1 all around. works shocks . trail bike with drag tweeks.