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| Mounting Techniques Every frame is different. Share and ask questions about mounting your motorized bicycle engine kit to your bicycle frame or bicycle rack |
OVERSIZED TUBING solved
Discussion at Motorized Bicycle Engine Kit Forum in the Mounting Techniques forum. I Guy we ride with put the bottom tube in a vise and made it oval. We plan on a ...  | | 
01-31-2008, 02:51 PM
|  | Santa Cruz Scooter Works | | Join Date: Jan 2008 Location: Nor*Cal
Posts: 953
| |  Re: 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! |
02-01-2008, 05:43 AM
|  | Moderator | | Join Date: Dec 2007 Location: Gainesville, FL
Posts: 655
| | Re: 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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02-01-2008, 11:51 AM
|  | Moderator | | Join Date: Jan 2008 Location: Shelby MI
Posts: 570
| | Re: 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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02-01-2008, 01:44 PM
|  | minor bike philosopher | | Join Date: Jan 2008 Location: north carolina
Posts: 5,428
| | Re: 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. |
07-11-2008, 02:09 PM
|  | Moderator | | Join Date: Mar 2008 Location: Cuk Ṣon, AZ
Posts: 4,724
| | Re: OVERSIZED TUBING solved
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07-26-2008, 12:47 AM
| | Motorized Bicycle Elite Member | | Join Date: Jun 2008
Posts: 139
| | Re: 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 |
07-26-2008, 12:31 PM
|  | Godfather of Motorized Bicycles | | Join Date: Jan 2008 Location: Ashtabula county, Ohio
Posts: 7,123
| | Re: 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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If it ain't broke, and you mess with it long enough, it will be. |
07-26-2008, 06:54 PM
|  | Motorized Bicycle Elite Member | | Join Date: Jun 2008 Location: Longmont, CO
Posts: 1,597
| | Re: 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? |
07-26-2008, 08:00 PM
|  | Motorized Bicycle Elite Member | | Join Date: May 2008 Location: Mesa, AZ
Posts: 290
| | Re: 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. |
07-26-2008, 09:08 PM
| | Godfather of Motorized Bicycles | | Join Date: Jan 2008 Location: Ashtabula county, Ohio
Posts: 7,123
| | Re: OVERSIZED TUBING solved
Quote:
Originally Posted by jasonh  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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