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Thread: ATC 70 chain question

  1. #1
    Join Date
    Mar 2007
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    Hampshire U.K.
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    536

    ATC 70 chain question

    Hi, does anyone know what size chain fits a 70? ie- no. of links, pitch, ect.
    Unfortunately the chain snapped going downhill, ran off the sprockets and we couldn't find it so we've not got a pattern.
    thanks, Rob.
    ATC 70, ATC 250es, 1/32 ATC 250R
    1 person in 10 understands binary, the other one doesn't.

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  2. #2
    Join Date
    Apr 2007
    Location
    England UK
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    27
    Its a 420,not sure on links but a pit bike one is plenty long enough
    Last edited by Dangerous-UK; 06-03-2007 at 11:42 PM.
    2 atc 70's (well ones a 160 now)
    1 atc 110
    1 atc 125
    Just bought another 70 well minus forks and engine!

  3. #3
    Join Date
    Mar 2007
    Location
    Hampshire U.K.
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    536
    Thanks for that, I'll give it a go.
    ATC 70, ATC 250es, 1/32 ATC 250R
    1 person in 10 understands binary, the other one doesn't.

    Trikefest UK '08 survivor!

  4. #4
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    all atc 70's have 72 links of #420 chain

  5. #5
    Join Date
    Mar 2007
    Location
    Hampshire U.K.
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    Cheers, now I can see what I can get. So, (pulling arorak on...) what does the 420 mean, 4mm wide x 20mm pitch perhaps? Just curious...!
    ATC 70, ATC 250es, 1/32 ATC 250R
    1 person in 10 understands binary, the other one doesn't.

    Trikefest UK '08 survivor!

  6. #6
    Join Date
    Apr 2007
    Location
    England UK
    --
    27
    Not sure but 428 is the same size just a bit wider and has 8mm rollers
    2 atc 70's (well ones a 160 now)
    1 atc 110
    1 atc 125
    Just bought another 70 well minus forks and engine!

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