Planet Minis

450rbronco · 05-14-2009, 05:22 PM

about a year ago i started building a pit bike it is based off a 50 frame a as of now i have frame forks and triple clamp swing arm and shock. i am looking to get a motor for it i wanna be like 125 or bigger. what motors will fit the 50 frame since i dont want one that only fits 110 frame what other parts are only 110 specific and wont work on 50s. i am doing a budget build and getting most stuff off ebay and it says it will fit all bike but i wanna make sure. thanks

450rbronco · 05-14-2009, 06:02 PM

you mean everyone runs stock motors. o and the swingarm and forks are to be used with 15mm axles so whats that limit me to on wheels

AHPminis · 05-14-2009, 06:12 PM

Quote:

Originally Posted by 450rbronco

about a year ago i started building a pit bike it is based off a 50 frame a as of now i have frame forks and triple clamp swing arm and shock. i am looking to get a motor for it i wanna be like 125 or bigger. what motors will fit the 50 frame since i dont want one that only fits 110 frame what other parts are only 110 specific and wont work on 50s. i am doing a budget build and getting most stuff off ebay and it says it will fit all bike but i wanna make sure. thanks

Hey, basically all the aftermarket motors on the market have the Honda 2 bolt motor mount pattern, so your going to be good with whatever you end up going with.

trd20 · 05-14-2009, 09:25 PM

check out the lifan 140 engine. comes with a 4 speed tranny and bolts directly on to a stock 50 frame

450rbronco · 05-15-2009, 02:12 PM

so the lifans are good motors i wasnt sure if they were junk or not. and for wheels all i gotta find is ones that say they use 15mm axle correct or can i get bushings for 13mm

and how would i go about an exhaust for this motor what will work ?

trd20 · 05-15-2009, 09:50 PM

im not too sure about the long term quality, but my buddy just put a lifan 140 on his stock 50 frame and it rips. it has tons of low end but not the same top end as my 108 stroker. it was nice because the lifan engine bolted directly on with no problems

05-14-2009, 05:22 PM	#1 (permalink)
450rbronco PM Newbie Join Date: May 2009 Posts: 40	what fits motor wise mainly about a year ago i started building a pit bike it is based off a 50 frame a as of now i have frame forks and triple clamp swing arm and shock. i am looking to get a motor for it i wanna be like 125 or bigger. what motors will fit the 50 frame since i dont want one that only fits 110 frame what other parts are only 110 specific and wont work on 50s. i am doing a budget build and getting most stuff off ebay and it says it will fit all bike but i wanna make sure. thanks

05-14-2009, 06:02 PM	#2 (permalink)
450rbronco PM Newbie Join Date: May 2009 Posts: 40	Re: what fits motor wise mainly you mean everyone runs stock motors. o and the swingarm and forks are to be used with 15mm axles so whats that limit me to on wheels

05-14-2009, 09:25 PM	#4 (permalink)
trd20 2nd Gear Member Join Date: Apr 2009 Location: Export, PA Posts: 363	Re: what fits motor wise mainly check out the lifan 140 engine. comes with a 4 speed tranny and bolts directly on to a stock 50 frame

05-15-2009, 02:12 PM	#5 (permalink)
450rbronco PM Newbie Join Date: May 2009 Posts: 40	Re: what fits motor wise mainly so the lifans are good motors i wasnt sure if they were junk or not. and for wheels all i gotta find is ones that say they use 15mm axle correct or can i get bushings for 13mm and how would i go about an exhaust for this motor what will work ? Last edited by 450rbronco; 05-15-2009 at 02:26 PM.

05-15-2009, 09:50 PM	#6 (permalink)
trd20 2nd Gear Member Join Date: Apr 2009 Location: Export, PA Posts: 363	Re: what fits motor wise mainly im not too sure about the long term quality, but my buddy just put a lifan 140 on his stock 50 frame and it rips. it has tons of low end but not the same top end as my 108 stroker. it was nice because the lifan engine bolted directly on with no problems

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