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  1. #1
    Senior Member cmcanulty's Avatar
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    Triple Crankset 20/30/42

    I really want this crankset, but does anyone know where it is available? I have googled and searched with no luck. Or any 20/30/42 crank with suare taper?

  2. #2
    Bottecchia fan
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    Hmmm...not sure if any cranks came with that particular set of chainrings. 4-arm spiders only go down to 22t so if you want to set one up you'll need an older 5-arm compact triple that uses 94mm/58mm bcd. A Shimano Deore XT from the early to mid 90's for example. Check out any of these Shimano part numbers:

    FC-M737-I
    FC-M739-5arm
    FC-M563-I
    FC-M569-5arm
    FC-MC36
    FC-MC36-S
    FC-MC34
    FC-MC34-B
    1959 Bottecchia Professional (frame), 1966 Bottecchia Professional, 1971 Bottecchia Professional (frame),
    1973 Bottecchia Gran Turismo, 1974 Bottecchia Special, 1977 Bottecchia Special (frame),
    1974 Peugeot UO-8, 1988 Panasonic PT-3500, 2002 Bianchi Veloce, 2004 Bianchi Pista

  3. #3
    Senior Member GeorgeBaby's Avatar
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    You could build that combo with TA Carmina from Peter White

  4. #4
    Insane Bicycle Mechanic Jeff Wills's Avatar
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    Quote Originally Posted by GeorgeBaby View Post
    You could build that combo with TA Carmina from Peter White
    Better link to the Carmina:
    http://www.peterwhitecycles.com/carmina.asp

    A possible problem with that setup: triples tend not to shift well with a larger gap from middle to big than from small to middle. The reason for this is that the chain tends to catch on both middle and large when upshifting from the small chainring. Many times, you need to shift to the large chainring and then back to the middle to complete the shift.

    If it were my bike, I'd set it up with 20/32/42.
    Jeff Wills

    All my bikes.

  5. #5
    Senior Member cmcanulty's Avatar
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    Sorry I meant to post the link to the crankset I am looking for and can't find
    http://www.bikepedia.com/ItemDetails...ts%2c+Complete

  6. #6
    Gear Combo Guru Chris_W's Avatar
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    Quote Originally Posted by cmcanulty View Post
    Sorry I meant to post the link to the crankset I am looking for and can't find
    http://www.bikepedia.com/ItemDetails...ts%2c+Complete
    It looks like that website is just listing the chainring sizes wrongly, it almost certainly has 22-32-42 (or 44) chainrings. As mentioned above, the smallest ring that can fit on the 64mm BCD 4-arm mount (as shown in the image in your link) is a 22 tooth ring.

  7. #7
    Bike Builder ruppster's Avatar
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    This says it is a 44-32-22. A quick search on Shimano's site did not turn up anything.

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