mx5 asama bicycle

Discussion in 'Photos & Bicycle Builds' started by beast775, Oct 10, 2009.

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  1. beast775

    beast775 Guest

    i doubt most wont be interested in this but there is quite a few of these motors for pretty cheap,700c rims and i have rebuilt the whole bike and motor drivetrain.quite a job getting this to run good but its quiet light and seems to propel the bike with great my street beast, legal bicycle,43cc mitsu.norco frame.

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    Last edited by a moderator: Oct 10, 2009

  2. professor

    professor Active Member

    All the pics are from the same side, I assume it is a roller type drive? Any details? Who makes it? Does look light.
  3. beast775

    beast775 Guest

    to much sun today

    i guess i coulda moved the bike to take the other side,but i didnt think anyone would say anything about it.yes its a scrub drive,if ya look in the second photo it shows the drive wheel.i had it out for a 10 mile ride today im really impressed.with the korean motor!
  4. wheelbender6

    wheelbender6 Well-Known Member

    The frame mount is an unusual combo with the friction drive. Cool.
  5. fetor56

    fetor56 Guest

    I like the idea of the engine being centrally mounted in the frame...looks like it could use a mounting bracket up front though.
    As prof said please supply details.
  6. retgi

    retgi Member

    I would be interested in one of these. Where are they sold?
  7. beast775

    beast775 Guest


    it is mounted on the downtube with a rubber mount and is moved by a cable to engage and disengage,works very well.not easy to do though,i cant see someone who isnt mechanical ever setting this up right.there is 3 settings on the shock engager.dry wet and very wet.they do not make these anymore epa reasons 2 strokes.but i bought this one localy for the price of a happy time.i knew someone who had one in the 70s and always wanted one,so i took a chance and im glad i did,doesnt compare to my staton kit but is kinda neat in its own way.the scrub wheel doesnt seem to be eating the tire but i have thousands of hrs in scrub drive terminology from years ago.
  8. retgi

    retgi Member

    I just thought since you mentioned "there is quite a few of these motors for pretty cheap" that I might be able to find one. Can you tell me who made them, their name or model?

    TREEWK Member

    Beast, Thanks For The Pics. That Is A Neat Setup. I Have A "zipcycle" Made In Alabama, Out Of Business Now. It Has A 25cc Motor. A Cogged Belt Drives The Jack Shaft. It Has A Hand Clutch That Pivots The Whole Assembly To Disengage The Drive Scrubber. I Had To Replace Most Of The Jack Shaft. Have Not Spent Enough Time On It To Get The Motor Running. Supposed To Do 19 Mph. Some Pics. THE LARGE GAS TANK IS A PLASTIC GLOVE BOX, THE GAS CAP IS A LARGE TOP NUT. THE GAS TANK IS ON THE MOTOR. IT HAS NICE FIBER GLASS MOTOR COVERS. I HAVE THE MOTOR GEAR AND BELT OFF, TRYING TO START MOTOR WILL ELECTRIC DRILL. DON`T TELL ANYONE, I WAS SPINNING IT IN WRONG DIRECTION!! LOL. I SHOULD HAVE SOME PICS WITH THE COVERS ON, LOOKS MUCH BETTER. EXCUSE THE CAPITAL LETERS. Ron

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  10. beast775

    beast775 Guest


    retgi-i have seen 4 for sale in the last 2 mnths is a mx5 superbike made in korea.thats all i know there is no other info.that bike is very cool treewk.i like the originality factor the mx5s have a cast porous metal covering lighweight but strong.your bike makes me wanna do a restoration!i just put a 50s ccm together for a guy and off he went....i think ive had enough for this week!ha:cool:
  11. Will Snow

    Will Snow Member

    I bought 5 MX-5's some years ago. They were a neat bicycle engine and they have a drive system like the modern japanese scooter. Pulleys open and close to change the drive ratio. Under the coweling is a fan for cooling. When riding, be careful not to block the side fan intake with your leg or you will block the cooling airflow and the engine will overheat and probably seize. I had that hapen to me a couple times.

    I put many miles on bikes using the mx-5 and tire wear with the friction drive was very little. Wet streets - park it.

    Frank at Seven Flags was a big dealer for the MX-5 but they are no more. Was sorry to see them discontinued and if you do find one, there are no parts available as far as I know. I checked all over when I had my last motor with no luck. Saw one for sale about a year ago on EBay

    Well, have with it.