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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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  #11  
Old 01-31-2008, 01:51 PM
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Easy Rider Easy Rider is offline
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Default re: Motorized Bicycle OVERSIZED TUBING solved

I Guy we ride with put the bottom tube in a vise and made it oval. We plan on a ride this weekend before the bowl.
Hey Gary, Register already and post pics!
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  #12  
Old 02-01-2008, 04:43 AM
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Default re: Motorized Bicycle OVERSIZED TUBING solved

I used U-Bolts on my install and they work well. I also used automotive fuel line, which comes in various diamiters, to kind of shroud the bolt

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  #13  
Old 02-01-2008, 10:51 AM
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Default re: Motorized Bicycle OVERSIZED TUBING solved

Thats a really nice looking engine mount Red. I hadn't thought about fuel line or covering the clamp in some way, I just ran a couple of layers of tape around the frame to protect it...Kelly
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  #14  
Old 02-01-2008, 12:44 PM
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Default re: Motorized Bicycle OVERSIZED TUBING solved

they make a heater hose in up to at least 1" diameter I think. I used it to wrap my undersized tube. Hard to believe there is actually a tube too small for this toy.
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  #15  
Old 07-11-2008, 01:09 PM
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Default re: Motorized Bicycle OVERSIZED TUBING solved

LiveFast has a clamp for oversized tube for $15.00...Live Fast Motors: Bike Motors, Bike Motor Accessories, Bike Motor Kits, Instructions for Assembling Bicycle Motors

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  #16  
Old 07-25-2008, 11:47 PM
Tj Bunch Tj Bunch is offline
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Default re: Motorized Bicycle OVERSIZED TUBING solved

Yea But that Clamp is $2.00 and the plate is $3.00 so you have $10.00 left over for Beer......LOL
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  #17  
Old 07-26-2008, 11:31 AM
Bikeguy Joe Bikeguy Joe is offline
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Default re: Motorized Bicycle OVERSIZED TUBING solved

Unless you have a boatload of 1/8" aluminum plate laying around then the whole thing cost you some time and a clamp @ $2.59.

And Mr. Joe said I was nuts for buying that at an auction. I've even made transmission parts for a motorcycle with some of it. Paid a dollar for a milk crate full.
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  #18  
Old 07-26-2008, 05:54 PM
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Default re: Motorized Bicycle OVERSIZED TUBING solved

That's a good deal on a boatload of aluminum.

Where would I find a small piece of aluminum plate like that?
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  #19  
Old 07-26-2008, 07:00 PM
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Default re: Motorized Bicycle OVERSIZED TUBING solved

Be careful using straight U bolts on an aluminum frame... they will eventually tear through the frame with the vibration.

I have a design here that will distribute the loading over a larger surface area, preventing metal fatigue in these newer (thinner and lightweight) aluminum frames:


I'll post some photos of the finished product in a few minutes. Just finished them about 30 minutes ago.
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  #20  
Old 07-26-2008, 08:08 PM
Bikeguy Joe Bikeguy Joe is offline
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Default re: Motorized Bicycle OVERSIZED TUBING solved

Quote:
Originally Posted by jasonh View Post
That's a good deal on a boatload of aluminum.

Where would I find a small piece of aluminum plate like that?
You can call the aluminum supply houses in your area and ask for cut off or drops, tell them you just want a couple pieces of scrap.

I may get ambitious and weigh up a piece and see what it cost to ship and sell pieces in the swap shop (cheap).
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