Gasgas 250 hybrid
 

I am in the process of building a hybrid with a Roll Design frame with a Gasgas 250ec engine.

See attached images and feel free to comment.

More images

Motor mounts. I have them modeled, and 3D prints are coming for mock up. made from plastic before finished product is from metal

looks great heres my 03

Thanks Jim.

I will be getting the swingarm powder coated soon and getting an electric start kit.

got some parts powder coated:

some more pics:

it looks good.
 

It is a complete rebuild including interesting modifications.:eek:

this is a Roll design honda 250r chassis with the gasgas 250 engine. i would call it a better version of what gasgas produced.:D

front motor mount mocked up. will get the metal versions in the near future:

3d printing
 

What material are the motor supports made of?

they will likely be steel. I am considering titanium too.

Neat project! Will you be using that non counter balanced engine or a counter balanced early bike or cb quad engine?

This is a counter balanced engine. this is a 2005.

chain alignment went flawless. no mods necessary:

The engine in your pics does not have a counter balance shaft that I speak of.

maybe i am wrong, but i thought it was counter balanced,

You need a 98' or 97' . The 05 is not counterbalanced.

Up to 99' for bikes and later for the quad engines. They most likely will have a alloy type mag/flywheel cover.

Thank you for the correction. the CB'd engine would be better in a quad chassis, but i feel it won't be that big of an issue. It will likely have less vibrations than my trx250r, which is CB'd. Even with the 250r with the crank balanced and a rebuilt CB, it still has a good amount of vibrations which can be felt in the bars.

some updates: ESR pipe test fit.

Front hubs assembled, with custom 3d printed dust cover.

Rear brakes complete