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Mounting Techniques for Bicycle Motors Every frame is different. Share and ask questions about mounting your engine kit to your frame or rack

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  #121  
Old 11-25-2012, 01:17 PM
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fatdaddy fatdaddy is offline
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Default Re: Motorized Bicycle OVERSIZED TUBING solved

Quote:
Originally Posted by jauguston View Post
Looks like you will need to add a vertical tube behind the pedal crank for the rear engine mount.

Jim
Or weld a vertical plate straight up to the rear stud holes. Drill two holes in the plate to mount it to where the rear mount usually goes. I think it would just look cleaner that way.
I've been using the u-bolts for years now. When I first started out I drilled a couple frames. Looking back I can't believe how dumb I was. I'm pretty sure those frames are in the scrap pile now.
I use the single u-bolt on a lot of customer builds. I wanted something a little firmer on my personal bike, so I went with the double u-bolt. The pic of it on my bike is not a GOOD pic, but you can kinda see it.
fatdaddy
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Last edited by fatdaddy; 11-25-2012 at 01:30 PM.
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  #122  
Old 11-25-2012, 06:56 PM
jauguston jauguston is offline
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Default Re: Motorized Bicycle OVERSIZED TUBING solved

In order to provide the needed strength and stability for the motor there needs to be a tube from top tube to bottom tube. The tube could have angle brackets welded to each end and held to the top and bottom tubes with U bolts.

Jim
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  #123  
Old 11-25-2012, 07:16 PM
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Chopperz Chopperz is offline
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Default Re: Motorized Bicycle OVERSIZED TUBING solved

Do you guys think one of these mounts would work in replacement of having to weld anything onto the frame?
http://speeddemon.ca/motorized-bicyc...per-mount.html

Also do you guys know anything about freewheel jackshafts? Cause looks like thats what im gonna need to do if I want to keep my rear disc brake

thanks,
Khal
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  #124  
Old 11-25-2012, 10:32 PM
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fatdaddy fatdaddy is offline
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Default Re: Motorized Bicycle OVERSIZED TUBING solved

Quote:
Originally Posted by Chopperz View Post
Do you guys think one of these mounts would work in replacement of having to weld anything onto the frame?
http://speeddemon.ca/motorized-bicyc...per-mount.html

Also do you guys know anything about freewheel jackshafts? Cause looks like thats what im gonna need to do if I want to keep my rear disc brake

thanks,
Khal
A lot of people are using this type of mount on OCC's and bikes like that. I haven't heard anything bad about them yet, and they've been out for a while.
As far as a jackshaft goes, that's gonna be a personal choice. Someone on the forum might know a way around your jackshaft dilemma, I got nothin.
fatdaddy.
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  #125  
Old 02-11-2013, 03:06 PM
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LabRat LabRat is offline
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Default Re: Motorized Bicycle OVERSIZED TUBING solved

ROFL! PHOTOGRAPHY!

That was my social nitch in HS. What did it get me, two year books. Never took shop, now I read and watch welding how to on youtube - thankyou what-its who created the youtube!
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