[bikermandan]

Has anyone ever heard of converting the parts from an old moped into a motorized bicycle ? If you had a small enough one and a large enough bike to match up with it...

[Industry_Hack]

I'm sure it could be done, and that it has been done. But they have plenty of kits available.

Do you have an extra motor and a welder?

[funetical]

I think they sell those. I've had mopeds and the engine's are bigger than you might think. But if you do it post pics. You provoked my curiosity.

[TxCyclist]

A 49cc engine on a bicycle? That would be one crazy ride.

[Industry_Hack]

Originally Posted by Dean

A 49cc engine on a bicycle? That would be one crazy ride.

Nothing less than 883cc for me.

[TxCyclist]

Awesome. Let me know next time you ride a 883 mated to a bicycle. I'll travel just to watch the ride.

[Industry_Hack]

Originally Posted by Dean

Awesome. Let me know next time you ride a 883 mated to a bicycle. I'll travel just to watch the ride.

Well, I alternate between the two, not sure it would be a good idea to mix them.

[47Steve]

Really, if you want engine power, I think you're better off with a real moped. Better brakes, real suspension front and rear, better lights, stronger frame. I got one when gas was expensive last year and have put 11,000 km on it. It's totally fun, rain notwithstanding.

[radracer]

YouTube - 49 CC Motorized Bicycle

[Nougat]

That video is of an HT kit from China. I just got one. Too much fun.

Actual pedaled moped engines also include a transmission with a centrifugal clutch, and usually a belt drive between the clutch and the front drive sprocket/shaft. This makes the engine case very large - too large to drop into a bicycle frame without a lot of modification.

That said, nothing is impossible. If you're going to try a proper moped engine, go with a Puch E50. There's a lot of those engines around, and parts are plentiful.