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| What can I make a gas tank out of ? (Page 1/3) |
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MidEngineManiac
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SEP 07, 02:09 AM
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Dont mind the bike itself, thats just a $50 test-fit frame. Looks like crap but it's the right size.
I'm not real happy with the look of the peanut tank, not "antique" enough for an early 1900's replica. (I cheated, that's an 80cc 2-stroke. I'll get highway speeds out of it).
I've looked into it and its crazy money to get one welded up that will straddle the top rail and drop a bit below it (as in early Indian). There is BARELY enough room (motor needs to tilt back a little, I am waiting on an offset intake to make it happen) to put a second tube and captive tank (as in period Harley). I'd have to make it all removeable to change the plug, and that is a nutso price as well.
Doesn't have to be an exact replica of anything, just "period-close" for 1900-1915 or so. Size is around 16" long max by 8-10" around max. Give or take, there is room to play. Gallon-jug size would be about perfect.
Can anybody think of something that would fit the bill and still be sort-of-safe and sort-of-sane to use as a gas tank ? (50-70mph on a bike frame is neither safe nor sane, so sort-of is close enough  )
Last resort is print a plastic shroud/cover for the peanut tank, but that seems kind of like slapping Ferrari emblems on a Honda. Just wrong.
Battery box (lighting/stereo) on the back is being made out of a small helium tank (think 1/2-scale BBQ propane tank) so I'd like something that "flows" with the barrel look.[This message has been edited by MidEngineManiac (edited 09-07-2022).]
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ls3mach
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SEP 07, 09:15 AM
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Fiberglass and a bladder.
I've had a few tanks built out of aluminum. My buddies CJ being the most recent.
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ray b
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SEP 07, 09:30 AM
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tube with caps copper al or steel hung just under the top bar
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ray b
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SEP 07, 09:33 AM
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get good hyd disk brakes on the front minimum better on both wheels
not cable hyd only cables stretch hyd do NOT
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theogre
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SEP 07, 04:00 PM
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Depending where you use that...
Maybe illegal to run those motor and E-bike conversions.
Start by Look up Moped laws for your City/State/Provence.
Example: Gas Engine ≥ Xcc displacement and E-bike Motor ≥ Y watts needs a Moped tag and Insurance or completely banned for use on a normal bike.
And either or both types following same power limits or not are often listed as a Motor Vehicle that's banned on sidewalks, bike paths, and more.
Ignore that...
👎 Most gas motor kits sold on Eflay, Banggoog, etc Sucks Big Time and won't last.
👎 Noise they make can get Cops called for noise alone in many places.
👎 They often leak oil grease or gas and people hate you when they are cleaning up the mess that makes.
I've seen many around here and one or more of these problems make them go away and often fast. Also seen many remove them for same reasons try to sell the crap on CL etc and local flea markets often failing or get very little money.------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave
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MidEngineManiac
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SEP 07, 05:02 PM
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E-bikes here, 120kg, 500w and 32kph limit, and compliance sticker. Conversions are a "grey area" right now since Transport Canada (feds) stopped defining and regulating them late 2021 and left it up to the provinces. (ie: My kit is 1500w but so long as I program it to limit to 500 on-road it is legal ("turbo" switch/off-road mode). Pack of 48v/500w stickers was 10 bucks from Ali Express.
Gas kits and mopeds have been dropped altogether in legal definition as of June 2022 in Ontario, so at the moment are being treated as go-karts or golf carts (off-road use only) but there are already court and human rights challenges popping up over that and the government will back down and re-list them. Cheaper to back down than it is to buy a "legal" bike for every disabled person living in towns with limited to no public transportation infrastructure which would be the end result with our discrimination laws. Dunno how the big-city cases will turn out since they do have decent infrastructure. Still a "grey" area legally as they cant stop you from having it mounted and so long as you are peddling it's not a motor vehicle (think pushing a g-kart).
For me personally, 90% of my use on it is rural gravel back-road nobody cares about, or down an abandoned rail line turned into a trail. I'm keeping an eye on the laws and if need be can toss a 24v/250w kit on to "electric power" anytime I need to cross a public road. Which ain't much. "Bike" infrastructure around here mostly consists of trails across private fields and abandoned properties. I have 2 blocks on-road to get to the closest trail and 1/2 block at the far end to get to the shopping center. one road to cross. It's not really an issue for me.
But then we allow quads and lawn tractors to be used like cars here so.....[This message has been edited by MidEngineManiac (edited 09-07-2022).]
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IMSA GT
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SEP 07, 09:17 PM
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So a tank from a board track racer would be closest to your time period but those are about $600 for a replica.
If you don't care about looks, here ya go It bolts to your seat post.
https://www.pistonbikes.com/product-p/rskgt.htm[This message has been edited by IMSA GT (edited 09-07-2022).]
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MidEngineManiac
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SEP 08, 05:23 AM
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IMSA GT
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SEP 08, 05:32 PM
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MidEngineManiac
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SEP 08, 08:03 PM
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Thanks !... I get like that sometimes. get stuck in a rut trying to re-purpose something just for the challenge when there is no need to. When I originally posted I was thinking along the lines of antique fire extinguisher or something like that and see what else somebody could come up with. 
Did get the motor mounted to my "good" frame today , and straightened it up. Decided to move it forward and up a bit with a spacer instead of the offset intake. THEN got the joy of routing all the cables and wires in looming. Not going to have much room for an underslung tank now, so it will end up Indian-style top mount. Easy enough to print some tapered fairings for the ends.
Thats twist throttle for the gas, thumb throttle for future electric, speed shifter and brake on the right. Clutch, speed shifter and brake on the left with room for lights/horn switch. Speedo/electric controller in the center for the future expansion. It's still getting a secondary extender bar slung low to hold a handlebar stereo and analog speedo. Only slightly more complicated to run than the average aircraft
And no, those green zip-ties are NOT staying. I just ran out of black.
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