minibike to motorbike

brucemg51 · #1 12-09-2008, 08:54 AM

Has anyone cannabalized a minibike to make a motorbike? Dick's Sporting Goods has a minibike on sale for $249. It has some sort of 5hp, 4 stroke engine. I figure for that price, maybe I'll buy it and strip everything off the frame for a motorbike. Considering how much I would have to pay for the engine, plus controls, cables, sprockets, brakes, pull start, centrifugal clutch, etc., if purchased separately, it might be worth considering.

**Dan** · #2 12-09-2008, 11:12 AM

Hi Bruce. I couldn't find a gas mini bike on their site. Have a link or is it at a store only? Is cool thought.

xPosTech · #3 12-09-2008, 11:36 AM

I've thought about that, too. Issues are the width of the engine (if doing a frame mount) and gearing. The easiest would be a rack mount roller drive. A rack mount chain drive would have the same gearing difficulty as the frame mount.

A hub or bottom bracket is a simple basis for a jackshaft for gearing options. Depending on what side drive it has will determine if you need one or not.

Think it through then do it.

Ted

jasonh · #4 12-09-2008, 11:52 AM

I saw one of those things at Checker and thought the same thing.

Too bad 5-6hp is totally not Kosher with the law.

**Dan** · #5 12-09-2008, 12:27 PM

On my way to Dick's sporting goods with a tape and note book!

If I am not back in 3 days, send beer.

Large Filipino · #6 12-09-2008, 12:44 PM

You could have the best of both worlds. Remove the fork then replace it with something made so you have yourself a pusher. Then later if you want you have a mini bike again.

brucemg51 · #7 12-09-2008, 02:08 PM

Quote:

Originally Posted by Dan

Hi Bruce. I couldn't find a gas mini bike on their site. Have a link or is it at a store only? Is cool thought.

I had seen them in the store some time ago, when they were priced at $399. Then they went on sale for $299. I happened to be in the store yesterday just as the clerk was marking them down to $249. Now, they're making it almost impossible for me to pass up.

brucemg51 · #8 12-09-2008, 02:10 PM

Quote:

Originally Posted by jasonh

I saw one of those things at Checker and thought the same thing.

Too bad 5-6hp is totally not Kosher with the law.

Neither is an 80cc, 2 stroke. The tag on the engine says it is 97cc. Not all that much more. It's all about being sneaky and keeping a low profile.

**Dan** · #9 12-09-2008, 03:35 PM

I have returned. No minibike but I did pick-up beer. (who is ready?) The engine with clutch cover is too (is it "to" or "too"?) wide for peddles. For the price and mods, I can't see it being good for a frame mounted MB. Would be a perfect rack mount. I still think it is a great thought and worth looking into as a frame mounted engine. There is a thread here about a HF engine. 79cc 4 stroke that with the shaft cut off would just make the magic 9 inches and fit inside wide cranks. $88 in store.

What would be uber cool is a 50cc 4 stroke with lighting! I bet some one some where has made a minibike like that.

Bruce, thanks for the thought! It has potential. I saw one today (minibike) that had a right side shaft with a rear sprocket the size of bike cranks. Would make a natural MB with intrinsic gearing.

Back to trolling the net for the perfect engine. It is our quest!

brucemg51 · #10 12-09-2008, 08:06 PM

it's "too".