has anyone used the 110cc loncin engine?

Hi JonnyR....You shouldnt need a jack shaft with a 4 speed gearbox.....the engine would also have about 4-1 reduction in the primary case before the gearbox...DD
 
You'll be as good as an entry motor cycle with that. There's another thread that talked about those type of motors. There are a lot of different types for sale out there. They are much larger than you think. That one in particular is probably about 19x11x11 inches. They would make for great motorizing, definitely post your build if you manage to do it!
 
yea im making a parts wish list right now i want to know what im going to need and what im going to want to make this awesome.
 
am i going to have to go to a moped hub/wheel or just a heavy duty bike wheel with 10 gauge spokes?

also what hub adapter would stand up to this?
 
you will not hit 70mph with this type of engine, maybe 60. it's not a super high-performance engine like in a motocross bike. agk went almost 80 with a tricked out honda gx160 and super tall gearing. i wouldn't go 70mph on any less than a real motorcycle or purpose-made frame, the handling will be terrible because a bike frame will flex at high speed and make it unstable. looks like a great engine, i would go for it. it should have a sprocket on it so the drive system is set up for you already. mounting may be a challenge, you need a welder.
 
i have a welder and am just looking for something reliable to do 40-50mph on with a occasional high speed run its going in a stretch frame to start with and if i like it mabe a customized smaller frame to fit it as a race day bike im a good fabricator and my welds are realy strong probibly going to mod the stetch frame to make it a triple down tube for rigidity (stock tube with one on ether side )and im planning a rear swing arm right now
 
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