Mini Bike Fun

[SMS]

Originally Posted by Too Many Projects

WOW, that is WAY cool. My Dad was born and raised in St Paul and rode Indian's and Harley's but I don't recall him mentioning a Cyclone. BUT, he was born in 1925 and would have started riding around '39-40, so they may have already been scarce.


The pic with the cam cover removed is really cool, shaft driven, overhead cams.

Here is some detail on the cam drive and internals. They used beveled gears and SK roller bearings heavily. Later the same gents opened a gear company.

Note also the race version had ports in the cylinder walls so at BDC it had extra breathing capacity. Grandpa also built a sled out of Cyclone parts.