Bamby 4

[BAMBY]

Ive been away from the forums for a long while, but here's what ive been up to. Ive changed my minibike frame for the 4th time now. Ive upgraded from a 5hp Briggs to a Kohler K181 8hp, and now have motorcycle tires and wheels with drum brakes that came with them stock.
This one has rear suspension (not yet hooked up) but the swing arm is all there and functional.

I was going for the Sport bike look with this one... and I just finished the exhaust on it...

Heres a couple vids i took of it running...

http://www.youtube.com/watch?v=ddzWjZl2ZSM
http://www.youtube.com/watch?v=l7nuPY9UfSw

 

[BAMBY]

If anyones wondering what the heck i was thinking by having a 60t sprocket on the jackshaft like that... I thought i would try to make it do a wheelie by having a 18:1 gear ratio, but the centrifugal clutch wouldnt let it, it just slipped instead of wheelie-ing, and it only had a top speed of like 8mph... But i have since changed it to a 24t, which tops out at 35, but gives me great torque too...

 

[fowler]

why dont u go and get a nice big bike engine then u get a real motorboke

 

[BAMBY]

well, i do have a real motorcycle... and i dont get a bike engine because its too much to afford, and im going to be selling my minibike stuff anyway because the cops are making it difficult to ride at all.

 

[mrfreyguy]

Good old police always ruining everyones fun. That things really sweet! Could you take some more pics?

 

[Walter Keller]

No sense of humor

Nice work on the bike - too bad the popo have to ruin things.

 

[fowler]

thats why u need a bike engine so the cops cant catch u

 

[BAMBY]

Good old police always ruining everyones fun. That things really sweet! Could you take some more pics?

movies aren't enough?! You must REALLY like this thing!
-yea ill see what i can do for some pics, ill take some with the shock in place that im using...

 

[KieranM]

yea bamby is back, long time no post

 

[BAMBY]

Yea Yea but anyhow... heres some more pics!

 

[KieranM]

what size sprocket are you running on the jackshaft

 

[BAMBY]

clutch 14t
jshaft 24t
jshaft 12t
rear 60t

 

[BAMBY]

todays gonna be rough... ive been trying to figure this out for over a month now. I have the concept in place, but i need to figure out all the B$ to make it work CORRECTLY...

 

[redsox985]

What are you trying to do? Something with the suspension? This is going to sound off track but I have a mountain bike with some crazy rear suspension. This isn't the exact bike but it has the same suspension. I don't think that it's any help but I'd like to try to contribute if I can.

http://www.mtb-hol.com/pictures/epiphanay.jpg

 

[BAMBY]

yep, im trying to get the shock to work how ive pictured it mounted above... your link is getting me some new ideas its helping out a bit... if anybodys got ideas on how to make this work... feel free to shout.
heres a blank pic if anybody gets an idea.

 

[BAMBY]

okay i think i got it... i didnt really want to do this design, because i thought the shock looked so freakin cool where i originally wanted it to be... but, i know i can make this work more easily than if i tried keeping the shock under the tail like before.
in my opinion, this will look pretty sick too though...

 

[redsox985]

That may be your answer.

 

[Hendersonjk]

to make tht original shock work

youll need more of a cantilever set up . Google it and youll see what I mean and it can also change the stiffness of that shock/coilover by changing the pivot point either way will look neat. your muffler looks like a catalitic converter. you sure its a muff

 

[BAMBY]

it IS a catalytic converter, but i cut it open, removed all the guts, and welded it back together- its hollow now.
And whats the difference from the one i was thinking of and the cantilever that you're talking about?

 

[Hendersonjk]

http://reviews.mtbr.com/blog/tag/mountain-bike-review/
this is an example I got by googling bicycle cantilever suspension