All Terrain / Fat Tire

[SuperSprocket]

I'd like to start a thread on All Terrain bikes (4" or better tires). We've just got our Mongoose Beast "Moto-Goosey" running but it's still has a bit more development in the works before we can hit the road. Just put a muffler with SuperTrapp disks on. Seems to work but it's a little loud. Gettin' the Beast to stop was our first priority, so we adapted the front fork and hub to accept a Shimano Hydraulic caliper using a master cylinder from an ATV.

Powering was a real challenge since we wanted the engine to mount in urethane bushings for vibration damping. Lots of failed attempts, however it seems to be successful now. The jack-shaft design should lend itself to the 7 speed Dolomite as soon as we get the Beast finished.

Here's a couple of shots, hope you like what you see. We're thrilled with it's looks.

 

[Dan]

Howdy and welcome.

Looks awesome!

 

[bluegoatwoods]

Welcome.

It certainly does look cool. I've given a bit of idle thought to motorizing a fat bike. But I wondered of chain clearance, around the tire especially, would be a problem.

How did that turn out for you?

 

[SuperSprocket]

Here's some shots as she stands today. Couldn't offset the engine enough to get around tire. Had to build Jackshaft to offset the drive chain.

 

[Dan]

Purty slick, SS.

 

[curtisfox]

Truly awesome, very clever mounts and jackshaft.................Curt