Rotary Bike Motor

Discussion in 'General Questions' started by beachcruiser, Dec 2, 2008.

  1. beachcruiser

    beachcruiser Member

    It is a little expensive and uses gas but the possibilities are there
    to run on compressed

  2. kerf

    kerf Guest


    Way too expensive


    If you could run on compressed air, why would you want to?
  3. fetor56

    fetor56 Guest

    I've ridden one of these bikes & it's a nice engine & legal.............but gutless.
  4. arceeguy

    arceeguy Active Member

    That's like a modern day Honda Cub Type F!

    Attached Files:

  5. beachcruiser

    beachcruiser Member

    Check out on YouTube......Angelo di Pietro's Rotary Air that is the future coming at us fast
  6. kerf

    kerf Guest

    Never happen, not enough energy stored in a compressed gas cylinder. This is pure bunk, you'll be dead and gone and never see it a commercial success. Stick to good old gas, plenty of BTU's per lbs.
  7. SimpleSimon

    SimpleSimon Active Member

    I will respectfully disagree. Utilizing modern carbon fiber reinforced tanks, air storage at 4,200 lbs/sq in is quite feasible. At that pressurization level one tank about the size of a scuba tank will readily power a motorized bicycle a quite reasonable distance.
  8. Mountainman

    Mountainman Active Member

    the thought of carrying around someTHING the size of a scuba tank
    doesn't seem to make it a viable option for most at this time

    food for thought though -- yes

    ride that THING
  9. srdavo

    srdavo Active Member

    ok....but mention youtube, and I lose myself in there for an hour, minimum.... heh heh ;)

    the 1st two video links are relevant to what beachcruiser is talking about.
    cool concept....200 miles on a "fill-up"......although one of them mentions the possibility of "perpetual motion".

    These two links are just fun.

    a blast from the past....heh...this was aired on one of my local tv stations...1989

    a fifth grade science project, 2008..... I believe "Dad" was the chief engineer on this one.....I wonder if he was in the 5th grade too?

    Would BIG Oil allow this to succeed?
  10. biken stins

    biken stins Member

  11. ZnsaneRyder

    ZnsaneRyder Member


    Makes ya feel real safe to carry a bomb with you to go bike riding!
  12. SirJakesus

    SirJakesus Guest

    High pressure tanks are actually quite safe. They will never just explode under normal real world circumstances.
    I know the french have a car that runs on air and if my paintball gun can hurl over 1000 shots at just below 200fps off a single 20oz co2 I don't see why a car or bike couldn't be powered the same way.

    Going back to the rotary though I would run it with gasoline mix like it was intended. I've read that they're restricted with their CDI system and it can be easily replaced with one that will allow you to get a lot more than 200watts from that little engine. It should be able to get at least a horsepower with its displacement. I would love to have one myself regardless.
  13. ZnsaneRyder

    ZnsaneRyder Member

    Wonder if rotary is smoother than the kicks of a 1-cylinder piston engine!

    Hope so, I'm interested in these too. Would be a nice way to get a legal 50cc but have much more power.
  14. SirJakesus

    SirJakesus Guest

    The "rotary" is just a brand name. It has a simple single cylinder engine like all of our bikes, only this one is special in the fact that the transmission is driven directly through the hub of the wheel. It looks like a really bulletproof rig.
    If they made a wenkel rotary engine small enough to fit on a bike I'd be all over it. Imagine revving a little 50cc to about 20k rpm all tucked in on a clear road *shivers*
  15. ZnsaneRyder

    ZnsaneRyder Member

    I see. If it was a wankel, it would be amazing! 50cc of rotary is approx 150cc of piston power I would guess. You would have guys on bicycles with 10HP 50cc engines :evil:

    They are only 1.3L in a car and make tons of power even compared to a larger engine.
  16. sparky

    sparky Active Member

    Any guesstimate on the range of an MB??