Well I have a Fred 6.0cc Slant head but it is going on another Very High Performance build the head on the Rollfast is a 6.0cc B.M.W. ( Bicycle Motor Works ) Very Nice!
I also like the Puch 70cc Hi Hi Comp head that is 5.9cc Xlnt Cooling and performance ability.
You'll find that a Nexus 3 spd will do very well anything above that and really what good will all those gears do you'll need a jack shaft for that Nexus.
The most recent pic of the Rollfast was taken about 5 minutes before loading on my truck and taking it to the welders for some work so I took all the electrics out so they don't get fried when he is welding on the bike, Man this guy can Frig'n weld too. the bike is getting an HD Lightning ignition system with vintage cloth covered high performance plug wire engine and carb has been through all the modifications necessary to achieve speeds better then 50MPH Next is powder coating Just a reminder of the color.
I like the two strokes engines and the Rollfast was a tight fit no 4bang'n up in this dude.
I also like the Puch 70cc Hi Hi Comp head that is 5.9cc Xlnt Cooling and performance ability.
You'll find that a Nexus 3 spd will do very well anything above that and really what good will all those gears do you'll need a jack shaft for that Nexus.
The most recent pic of the Rollfast was taken about 5 minutes before loading on my truck and taking it to the welders for some work so I took all the electrics out so they don't get fried when he is welding on the bike, Man this guy can Frig'n weld too. the bike is getting an HD Lightning ignition system with vintage cloth covered high performance plug wire engine and carb has been through all the modifications necessary to achieve speeds better then 50MPH Next is powder coating Just a reminder of the color.
I like the two strokes engines and the Rollfast was a tight fit no 4bang'n up in this dude.
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