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  1. #1
    Senior Member
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    left side drive?

    so. i was just wondering, is there a point to having a left side drive train (chain)? is there a difference that you can feel? any explanations would be appreciated!

  2. #2
    .-. --- --. ..- . .shawn.'s Avatar
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    Duh. Because Sheldon does it.
    What!

  3. #3
    artistic tricyclist
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    You wouldnt have to worry about unscrewing your cog with backpressure any more...but your left pedal is liable to come off.

  4. #4
    Bow$$ dustinlikewhat's Avatar
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    is there a point to having a left side drive train (chain)?
    yep, it'll help you learn to use the search. pwnd.

  5. #5
    crotchety young dude el twe's Avatar
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    Quote Originally Posted by dustinlikewhat
    yep, it'll help you learn to use the search. pwnd.


    Don't know why, though...Probably has something to do with my friends' obsession with the word "pwnd."
    Quote Originally Posted by CardiacKid View Post
    I explained that he could never pay me enough cash for the amount of work I had put into that bike and the only way to compensate me for it was to ride the hell out of it.
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  6. #6
    Hello. crushkilldstroy's Avatar
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    so you can tear up the other pantleg.

  7. #7
    Senior Member
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    strange. my roomie just got a bmx bike used, and it came set as a left hand drive train. we switched it back to right in the course of taking it apart to clean/relube, but not for any particular reason except for it being the norm.

  8. #8
    LF for the accentdeprived
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    ?????????? If you put a regular BMX freewheel on the left side, you can't go forwards... Was it a fixed BMX?
    Quote Originally Posted by dutret
    Do you deny that you are clueless or do you just think that "moron" didn't need to be tacked on there?
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  9. #9
    jack of one or two trades Aeroplane's Avatar
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    ACS makes the Southpaw Freewheel for just such a left-hand drive setup. But I'd guess that it is reverse threaded, and you'd need a special hub too.

    Too keep your pedal from unscrewing, use the front set of a tandem crankset. Viz, the SB.
    Quote Originally Posted by Dr Irwin Goldstein
    Men should never ride bicycles. Riding should be banned and outlawed. It is
    the most irrational form of exercise I could ever bring to discussion.

  10. #10
    LF for the accentdeprived
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    ^^^ Sure, but if you reverse that to right side drive as gnat said, you're screwed, again

    Edit: BTW, your pedal will NEVER unthread if you put you cranks on the wrong way. Actually, I believe they are put on the wrong way now. The right side pedal is right-hand threaded, as we all know. Now, if the bearing gets stuck, and you pedal forwards, you will spin the pedal right off the crank. Same with the left pedal, that, for a mysterious reason, is left-hand threaded. Loosen your pedals, hold the pedal body, spin the crank forwards to check. Pedal will come off. This, of course, doesn't cause any problem as bearings never get stuck enough to loosen the screw. Now, what I don't understand and nobody could tell me is why pedals are threaded this way???
    Last edited by LóFarkas; 09-04-05 at 08:35 AM.
    Quote Originally Posted by dutret
    Do you deny that you are clueless or do you just think that "moron" didn't need to be tacked on there?
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  11. #11
    Senior Member eddiebrannan's Avatar
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    Quote Originally Posted by LóFarkas
    ?????????? If you put a regular BMX freewheel on the left side, you can't go forwards... Was it a fixed BMX?
    can get left side freewheels (acs southpaw ffor example). reason you see this in bmx is so you can grind goofy
    Last edited by eddiebrannan; 09-04-05 at 08:52 AM.

  12. #12
    The normal school
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    How about two cranks/ two chainrings/ two chains/ two cogs (all equal)- Completely useless, but may be fun. Monster bike- sort of.

  13. #13
    LF for the accentdeprived
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    sure, eddiebrennan, now show me how you take them apart, and put them back together right side drive, and ride the bike forwards. (Original post: "got a bmx bike used, and it came set as a left hand drive train. we switched it back to right in the course of taking it apart to clean/relube"
    Or, better still, read my post above yours.

    b00sh00: double freewheel double drive fixed
    Quote Originally Posted by dutret
    Do you deny that you are clueless or do you just think that "moron" didn't need to be tacked on there?
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  14. #14
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    the rear wheel was set up with double freewheels, so i suppose one is the regular one and one for the left drive. it rides fine.

  15. #15
    LF for the accentdeprived
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    THE ANSWER. Thanks.
    Quote Originally Posted by dutret
    Do you deny that you are clueless or do you just think that "moron" didn't need to be tacked on there?
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  16. #16
    troglodyte ryan_c's Avatar
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    Quote Originally Posted by Aeroplane
    ACS makes the Southpaw Freewheel for just such a left-hand drive setup. But I'd guess that it is reverse threaded, and you'd need a special hub too.
    AFAIK, the pawls just operate in the other direction. So, you use a normal hub/wheel flipped around. This way, things wouldn't get overcomplicated.

  17. #17
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    Quote Originally Posted by ryan_c
    AFAIK, the pawls just operate in the other direction. So, you use a normal hub/wheel flipped around. This way, things wouldn't get overcomplicated.
    But normally freewheels are just screwed on by hand and then the pedalling motion torques them down, if the freewheel operated the opposite way on normal threads, then you'd have to torque down with a freewheel tool, and hope you never unscrew it when pedalling (Loctite/JBWeld? )

  18. #18
    Senior Member Grunk's Avatar
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    People who ride BMX, and grind on the right side, user left-side drive setups to save their chainrings.

  19. #19
    troglodyte ryan_c's Avatar
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    Quote Originally Posted by gorn
    But normally freewheels are just screwed on by hand and then the pedalling motion torques them down, if the freewheel operated the opposite way on normal threads, then you'd have to torque down with a freewheel tool, and hope you never unscrew it when pedalling (Loctite/JBWeld? )
    Holy cow, that's a good point, total oversight on my part. If no one else finds out and posts about threading etc. on left-side drive freewheels, I'll find out when I stop in the shop tuesday, the other mechanic there knows way too much about old bmx stuff, and I know another guy who works there on weekends actually has and rides a left-side drive bmx.

  20. #20
    Senior Member 3niktac's Avatar
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    I believe that pedals are threaded the way that they are is because you want it to come off if the bearing locks up. If they were threaded the other way and your foot was attached to the pedal, then if the bearing locked up the bike would, oh I don't know, say rip your leg off or something.

    C

  21. #21
    LF for the accentdeprived
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    Quote Originally Posted by 3niktac
    I believe that pedals are threaded the way that they are is because you want it to come off if the bearing locks up. If they were threaded the other way and your foot was attached to the pedal, then if the bearing locked up the bike would, oh I don't know, say rip your leg off or something. C
    Not on a freewheel bike, which is what the design was made for... The threading is supposed to keep pedals from unscrewing, only I think it's amazingly F'd up. I am open for other ideas;-)
    Quote Originally Posted by dutret
    Do you deny that you are clueless or do you just think that "moron" didn't need to be tacked on there?
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  22. #22
    coasterbrakelockup lz4005's Avatar
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    Quote Originally Posted by b00sh00
    How about two cranks/ two chainrings/ two chains/ two cogs (all equal)- Completely useless, but may be fun. Monster bike- sort of.
    Done and done.

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