Anyone ever considered using a Shaft Driven Bicycle?

Discussion in 'General Questions' started by Mike Lynch, Jan 19, 2009.

  1. Mike Lynch

    Mike Lynch New Member

    Please! Please! Please! Note that I am asking if there are any advantages or disadvantages of using a "shaft" driven Motorized Bicycle Frame Vs. a DeRailer Driven Bicycle Frame Vs. a Single Geared Bicycle Frame as a Motorized Bicycle. I am NOT asking that the "shaft" be attached to the Motor in any way just the use of this type of Bicycle Frame as the carrier that the Motor would be attached / mounted on. Your positive feedback will be appreciated.

    Would there be any advantage or disadvantage in building a Motor Driven Bike with "shaft drive"?

    Here is a site where I saw them:

    Your feedback will be appreciated.

    Best regards,

    Mike Lynch
    Last edited: Jan 20, 2009

  2. Mountainman

    Mountainman Active Member

    hey Mike

    went there and stayed on site for a while -- interesting to say the least
    yes -- seen the shaft drive used on bicycles before
    just brought more interest today

    wondering what country that THING is made in
    also thinking -- adding motor would be pretty cool

    going to be a thinking about this more -- thanks -- from -- MM
  3. Alaskavan

    Alaskavan Guest

    If you were planning to use the shaft to transfer the power from the motor to the wheel, you would have to figure out how to transfer the power from the motor to the shaft first.
  4. Youngbird

    Youngbird Member

    I think the masterminds at SBP could figure that out. Why not just a shift kit to get the thing going?
  5. Mike Lynch

    Mike Lynch New Member

    Haines Alaska!


    The Pizza served at the Pizza Shop at the main intersection accross from the Bank was pretty good. I have forgotten the name of the Pizza Shop hopefully you know where I'm referring to. For early September however, it sure felt cold sitting upstairs. Then it started to rain. When I boarded the ship the next morning it was still raining and a lot colder than the day before. Perhaps the next time I visit Haines, maybe on a Motorized Bicycle, we can have a beer or two while we share a Pizza. Haines is a very beautiful town.

    Best regards,

    Mike Lynch
    Last edited: Jan 20, 2009
  6. Mountainman

    Mountainman Active Member

    power has to get there some way

    that's the conversion part needed that get's the mind going

    I was thinking of a simple chain drive from motor area to front sprocket area

    but oh no -- then we are back to using chains or belts ect

    but the power has to get there some way

    as we ride those things
  7. srdavo

    srdavo Active Member

    Looks good to me.

    there's 2 positives ;)

    Well, I never been to Hai-nes......
    ..... but I really love my Pizza
    Haines has beautiful ter-rain
    .......& Van, I'd surely like to meet ya.
    I would greet you,
    then I would treat you....
    to-o some

  8. Mike Lynch

    Mike Lynch New Member

    Well, looks like I really messed this inquiry up!

    I was trying to get the Forums feedback as to the appropriatness of the Shaft Driven type of Cruiser Frame Bicycle as a candidate for adding a Motor to. Not to use the Shaft Drive in any way other than peddling when the Motor was not turned on.

    Can I have another try at this?

    I expected that I would get answers like:

    Yes, it will work fine, many Forum Members have used this type of Bicycle and mounted Motors on them with zero problems.


    No, it will not work, Internal Hub Bicycles are not candidates for Motorization because - (I do not know what to put in here since I have never had a Bicycle with an Internal Hub and I am just a novice trying to decide which Bike will 100% work the first time).

    Please can I have another try at this?

    Best regards,

    Mike Lynch
  9. Happy Valley

    Happy Valley Active Member

    Hi Mike

    The search archives here are your best bet on research what has or has not been tried. Remember, that there are many members who posted about their projects over the years but aren't necessarily active to read your post.

    Chain driven internal hubs have been used successfully, they are not the issue.
    Shaft driven bikes have been around a long time, over a hundred years, check Pope and Columbia.

    I can tell you the setup you're talking about it not common. Doesn't mean it won't work but you'll have to do the research. Transferring power smoothly will be the issue and with the needed fabrication you'll have to answer whether it is worth it.

    I don't know anything about the bike manufacturer you linked so can't say anything about the build quality of that brand. If you search around the net you'll find variations on the theme IE: shaft drive and now the new belt drive systems coming on line with internal hubs. Some ideas look good on paper but with the manufacturing done off-shore the build quality can suffer.

    I had a passing interest once in the AutoBike and it's "automatic transmission" until I found them to be really just a piece of junk.

    Good luck and hope this helps
  10. Alaskavan

    Alaskavan Guest

    I haven't seen anyone try a build with one, so you would be in uncharted territory. I doubt the SBP Shift kit would work on them without some serious fabrication since there are no front sprockets. The frames look okay from the standpoint of dimensions for mounting an HT. Except: If the crank isn't wide enough, you could have some trouble. I suspect there is internal gearing on the crank, so you probly couldn't just install a wider one.

    The pizza parlor no longer exists, but hidden on a small side road (actually an alley) below Fort Seward, is a place called The Fireweed. Not many tourists find it, but the locals and seasonal workers know where it is. It's worth looking for.
  11. Youngbird

    Youngbird Member

    I looked at the 3D animations and renderings of the above mentioned shaft drive setup. I think the deletion of the pedals and the addition of a jackshaft(SBP or otherwise) would make it a doable project w/o too much engineering. If you want to keep the pedals then a freewheel front chainring would need to be figured in somehow. That could get real time consuming and maybe expensive. My vote is delete the pedals(DE doesnt require them). If you are a "purist" look elsewhere.
  12. Pablo

    Pablo Motored Bikes Sponsor

    I know a guy with a shaft drive bike. Just by foot power he regularly shears the shaft and breaks gears. That alone kinda make my mind stay away....but it's a bit of a tough nut (read: expensive) to indeed get the power to the shaft AND keep the pedals.......still it would be very cool.
  13. wheelbender6

    wheelbender6 Well-Known Member

    You will have a tough time adapting a sprocket to a Nexus hub if you plan to let the motor drive a chain. (Some drive sprockets mount to a 6 bolt disk pattern, like the Alfine hub).

    They sell small ultralight aircraft engines (on Ebay) that look similar to the flat twins in BMW motorcycles. The crankshaft runs parallel to the frame top tube, so you may be able to adapt one of those mills to a shaft driven bike more easily.

    If you build this, you will be like Tina Turner:
    "We never, ever do anything nice; and easy" - Rollin on the River
  14. srdavo

    srdavo Active Member

    Mike asked me to help clarify his question. He is NOT concerned with running engine power through the driveshaft.

    Now we're getting somewhere. ;)

    possible maintenance issue

    so it would be possible to use a traditional GEBE belt drive or a friction drive set up.

  15. Youngbird

    Youngbird Member

    I dont see what the difference would be if its a shaft drive frame or wind powered. As long as the frame is of good structural quality and the two drive lines stay completely isolated from one another it wont matter. If as GhostO says the shafts are prone to break easily even under pedal power, well then I would leave it alone just on principal.
  16. Alaskavan

    Alaskavan Guest

    I guess it comes down to: No obvious advantages to using a shaft-drive frame, and a few possible problems.
  17. oldguy

    oldguy New Member

    Chainless drive

    Several months ago I bought my wife a chainless bike. Runs great. Since I have a GEBE set up, I would say that just sticking a GEBE on it would work fine. Since you have not intention of using the bike gearing as part of the drive there should be no problems. Advantage is that you have no chain drive or deraillier parts to get in the way of the work. Good luck. I may power the better halfs bike.