I have an idea, I need a motorcycle.

[turbochris]

Krug has a brainstorm!
I need to find a popular street legal motorcycle with many tightly spaced gears and a clutch that can be slipped and worked without problems. I'm sending about 100 hp through it.

about 100 hp,
street legal,
popular,
has many gears
and a stout clutch?


Any issues with the engine itself don't matter, it's going in the trash. something that sells cheap because the engine is crap would be ideal

[ernie wrenn]

I think I have several over here..

[azwood]

I have a old drag bike frame with a one piece fibreglass fairing I know it's not street legal but a great frame to use as it has lots of room for all the components you need as you can on my bike build room runs out fast

[enginewhisperer]

Most motorcycles have the gearbox integral to the engine. You can cut the crankcase up and weld / bolt on cover plates but it's tricky to make it all work with the lubrication system etc.
On the plus side, this style of bike usually has a wet multiplate clutch which can handle a lot of abuse. Any 600cc+ bike from the late 90's onwards will have something pretty strong, but there are a few bigger bikes that are often cheap.
The clutch is on the gearbox shaft and is driven by a gear on the crank, so it's not easy to get drive into it once you remove the engine parts.

Some bikes have a separate gearbox, but usually they have a dry clutch which might handle less abuse but is easier to change. The BMW K1200RS is a good example of this. The gearbox is longitudinally mounted and it has a shaft final drive.
I have one on the bench if you need some photos.

You can also get aftermarket Harley style gearboxes which could be adapted to basically any bike.


edit: Just realised this thread was bumped by a spammer.


Did anything happen with the bike plan? It's relevant to my current interests

[turbochris]

I just haven't gotten around to it. My business is keeping me busy. I'll come across a motorcycle sooner or later......