chain falls off on fat tire bicycle

[Frankenstein]

WIN 20150202 214909

• fattirejack
• Feb 2, 2015

I used a jackshaft to offset my drive chain. Chain alignment is important for safety, and dependability.

IMG 20150201 132048 (1)

• fattirejack
• Feb 1, 2015
• 2

Well since you got this nice bike posted, that jackshaft you're using, custom welding?

 

[fattirejack]

Yes it is. pipefitter, and millwright by trade.

 

[Frankenstein]

Yes it is. pipefitter, and millwright by trade.

Nice, is that a stock Stingray frame modified, and where did the fork come. From?

 

[fattirejack]

Mongoose Beast frame, modified. Front fork was built by me.

 

[Frankenstein]

Mongoose Beast frame, modified. Front fork was built by me.

You tilted the stem back? What welding method do you use?

 

[fattirejack]

Mostly TIG, some MIG

 

[KCvale]

This is my second 4 stroke kit install. Both were purchased by spooky tooth cycles. For some reason I cannot get the chain to stay on this time. I purchased a fat tire mountain bike but no matter what I do I cannot keep the chain on the bike. I hope someone out there has experience with fat tire bikes and can help.
I can get pics if needed.
Jerry

Yes Jerry, pics would really help.

The trick to motorizing a fat tire is to mount the engine where it fits best, and jackshaft the output to the right and into the bikes own pedal system, it is already designed to clear the fat tire, and you can use it's gears.

Here are a 4-stroke, Electric and 2-stroke example of moving the power to the right side and using the pedal chain.

Hope that helps ;-}

 

[bakaneko]

You know the original poster seems to be fine. I am not sure why this thread is still going with comments... LOL

 

[KCvale]

You know the original poster seems to be fine. I am not sure why this thread is still going with comments... LOL

For me I was looking at recent posts and as usual if I have some insight I post a reply.
It may not be needed by the OP now, but it should certainly help someone trying to motorize a fat tire bike in the future.

 

[Frankenstein]

For me I was looking at recent posts and as usual if I have some insight I post a reply.
It may not be needed by the OP now, but it should certainly help someone trying to motorize a fat tire bike in the future.

Same, I've found useful information in threads as old as 1997 on the internet. Beyond a doubt people will eventually come back to this thread for information they need when they need it, it's not even a matter of if.