Been out of the 2stroke game for awhile...

Discussion in 'Motorized Bicycle General Discussion' started by runnermike, Dec 11, 2014.

  1. runnermike

    runnermike New Member

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    Hey guys

    I am thinking of getting back in the 2 stroke scene. I have a great frame, Dyno, (Thanks DMB), to work with!

    I am either going to go with another Arrow race engine, or one of Fred's race engines. I believe both engines are built from a Grubee engine.

    My question for you guys is, and this is going to make me sound like a newb, what drive chain can I use? I am so used to running either a #35 or#41 on my 4 strokes. I will more than likely use a Sportsmanflyer sprocket. I know his sprockets can use either a 415 or 41.

    Sorry for sounding like newb...I promise I'm not...lol! Just been out of the 2 stroke scene for quite some time now and have not kept up with it.

    Thanks in advance
     
  2. Flyman

    Flyman New Member

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    Well I,m new to this bike deal & I see most of these kits run the 41 chain.I see
    no reason a 35 chain won't work, it works on 35 HP racing kart engines.I never
    had a problem with 35 chain.In fact they make what is called space chain &
    it will never kink.Kart shops sell it.http://www.ombwarehouse.com/-35-Space-Chain.html

    Hope I helped Fly
     
    #2 Flyman, Dec 12, 2014
    Last edited: Dec 12, 2014
  3. runnermike

    runnermike New Member

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    The issue is with the drive sprocket on these china girls. They will only take certain size chains and there is not a whole lot of room to work with. Thanks for the reply...
     
  4. culvercityclassic

    culvercityclassic Well-Known Member

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  5. runnermike

    runnermike New Member

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    Thanks Jeff!
     
  6. Greg58

    Greg58 Well-Known Member

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    410 is standard single speed bike chain, that came in my first kit. I quickly learned to replace it with #41, I've been running the same chain for almost four years now.
     
  7. maniac57

    maniac57 Old, Fat, and still faster than you

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    The hd #41 Industrial chain is about as big as you can fit without some more than ugly grinding. With the #41 you can get by with just a bit of clearancing under the sprocket cover.
    Any bigger and you rub the case between sprocket and coil. No way to clearance it any more without exposing coil to weather
     
  8. crassius

    crassius Well-Known Member

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    my kits are all coming in with the 415HD chains - the drive sprockets are nicely pointed to allow the fat rollers, and if drive cover rubbing occurs, it can be easily fixed by knocking out a small gap in this cover without interfering with the mag cover
     
  9. mapbike

    mapbike Active Member

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    in my opinion on a motorized bicycle like ours with the China Girl engines.

    Never broke one and because I ride in such nasty dusty conditions I never oil my chains, I just a spray of maxima chain wax every now and then and I have zero issues and I have one chain thats been going strong now since 2009 with about 1300-1400 miles on it, not that much compared to some peoples bikes here but my chains stay covered in dust and dirt.

    map
     
  10. Greg58

    Greg58 Well-Known Member

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    Chain wax is good stuff, we used it on dirt bike chains when my son and I had bikes, mud and dirt would wash right off.
     
    #10 Greg58, Dec 15, 2014
    Last edited: Dec 16, 2014
  11. BarelyAWake

    BarelyAWake New Member

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    Maxima chain wax is great stuff... until about -10°F or so, then things start to get a bit snarly ;)
     
  12. Greg58

    Greg58 Well-Known Member

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    That's funny! Its never been that cold here, not that I can remember anyway.
     
  13. BarelyAWake

    BarelyAWake New Member

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    Yea... gets old lol (like this pic) :p

    [​IMG]
     
  14. mapbike

    mapbike Active Member

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    At those temps I bet it does B A...lol
     

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