Jesse James chopper bicycle.

[anderkart]

Well... Those people were probably right, but we're all a bit crazy here on this forum so you just blend right in with us.

[Smurph]

Originally Posted by brendonv

Are u really gonna do 50mph on that bike though? I wouldnt want to push that front bike wheel or the metal that much. Lets just say "its fast enough" XD.

I've had my GT bicycle up to 60 downhill. No engine. Don't turn the wheel! haha

His bike looks way more suited for 60 than my GT does.

[brendonv]

Originally Posted by Smurph

I've had my GT bicycle up to 60 downhill. No engine. Don't turn the wheel! haha

His bike looks way more suited for 60 than my GT does.

FU#K that!

[dpaxson]

Originally Posted by brendonv

U gotta take into account that u will be sitting on it so that adds to rolling resistance. Then there is air resistance which takes off like 10% anyway. So all up, ur looking at about 45mph. I doubt u will go that fast but point is, it has some ballz.

if the calculation says he'll go 60 at a given rpm then he will regardless of air and rolling resistance assuming his engine is powerful enough. resistance only comes into play if the top speed is drag limited, not redline limited like he's calculating. i would gear it a little lower though. thats a pretty high top speed for a chopper. sweet looking chopper though

[Dougthewelder]

Originally Posted by dpaxson

if the calculation says he'll go 60 at a given rpm then he will regardless of air and rolling resistance assuming his engine is powerful enough. resistance only comes into play if the top speed is drag limited, not redline limited like he's calculating. i would gear it a little lower though. thats a pretty high top speed for a chopper. sweet looking chopper though

i think the TAV system adjusts its ratio based on 2 factors the rpm of the drive pulley and the resistance to movement experienced by the driven pulley. so my math is really just a calculation of possible top speed. it's actual top speed will depend on many things. i will try this ratio first though i think just because i think it will be cool to cruse around on this thing without my rpms always being maxed out. on my mini bike with just a centrifugal clutch its annoying that after i get above about 35mph the rpms just stay high.

well on that note i just got my TAV that i ordered in the mail and the jack shaft should be here soon so hopefully i will make progress soon!

[Dougthewelder]

getting the engine mocked up to begin figuring out how to mount it !


By vitamaxx, shot with MHS-CM1 at 2009-11-19

also in regards to how does my clone idle now that the compression release is removed from the cam. i fired it up today and i think i was right. the compression release was killing the engine below a certain rpm. i can lower the idle quite a bit now and it sounds very cool! i will make a video of it running when i get it on the bike. as for starting it now, it is much harder but i have found that if i just pull the cord until the engine goes just past the compression stroke then pull start it from there it has enough inertia to start up no problem. if you just step up and pull it though and it happens to be just before the compression stroke you will be in for a surprise lol.