My motor mount on a Schwinn Riverside

Discussion in 'Motorized Cruiser Bicycles' started by betacrash, Jun 29, 2010.

  1. betacrash

    betacrash New Member

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    I was banging my head trying to figure out a clean way to mount my Flying horse engine onto my Schwinn Riverside. The motor mounted just fine to the bike seat tube but the bottom tube is too big and it is too low so the motor would hit the chainguard/chain wheel area.

    I used the small adapter plate that bolts to the engine and creates a wider set of holes. I then drilled a 1.5" hole into a block of UHMW (ultra high molecular weight) plastic. This stuff is super tough. I cut across the hole I just made which created a rounded notch so that the block could rest on the bar below. I drilled two 1/4" holes on each side of the mount so I could use 2 4" carriage bolts to mount the block to the bar.

    Tell me what you think.
     

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  2. Nougat

    Nougat New Member

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    Functionally just fine, although I would have made it a bit shorter, bring the engine lower in the frame.
     
  3. betacrash

    betacrash New Member

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    i was thinking the same thing. i guess it looks kinda ridiculous. I will cut a couple of inches off tonight.
     
  4. Nougat

    Nougat New Member

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    With the engine that high, you might run into clearance issues with the drive chain, and possibly the spark plug. Also, the shorter your mounting bolts, the less they're likely to snap.

    On the other hand, with the engine up that high, you might not have to deal with pedal-to-exhaust clearance issues that may exist with the engine lower.
     
  5. CoastalCruiser

    CoastalCruiser New Member

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    Nice hunk of plastic! On most installs the clutch cover is right above the chain guard.
     
  6. betacrash

    betacrash New Member

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    alright. i came home and shortened it up. i made a corresponding bracket for the other side too. i will probably switch it out since it is pretty close to the exhaust and i am sure that it will melt.
     

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  7. Goat Herder

    Goat Herder Gutter Rider

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    Welcome to the forum. Neat trick with the plastic let us know how well it holds up. Looks good..
     
  8. corgi1

    corgi1 New Member

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    maybe it would hold the rear mount further from the frame for carb. clearance and angle
     
  9. FreeWheeler

    FreeWheeler New Member

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    I'm jealous, you have a kit to work with.;) I liked your first mount as it gave me an idea for when my kit arrives. I want to use the semi circular indents and weld another tube onto the frame. I've read some debate on vibration and mounts and the conclusion is that a hard mount with these motors that uses the built in indents is best, when possible.
     
  10. bairdco

    bairdco a guy who makes cool bikes

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    good idea. nice to see some problem solving action. if the plastic turns out to be too brittle, or melt, or whatever, it'd be easy enough to do the same with an aluminum block and simple hand tools.
     
  11. CoastalCruiser

    CoastalCruiser New Member

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    That looks better. Did you design with the carb on for clearance? I hardly think you need to worry about melting. Is that stuff like glass reinforced plastic without the glass?
     
  12. betacrash

    betacrash New Member

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    yes i did keep the carb on to make sure it cleared and it has a half inch to spare. the plastic is called uhmw (ultra high molecular weight). It is pretty close if not dead on what cutting boards are made of. You can get miscellaneous chunks of it off of ebay. Just search UHMW. Tough stuff.

    I think instead of using the bottom block I am going to just make my own U bolt so I get a really hard clamp on my frame. The bike is pretty much all done I just need to cut out an area of the back fender so the chain will pass.
     

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