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  1. #1
    Bianchi Goddess Bianchigirll's Avatar
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    Campi tapers again just a quick double check

    I am trying to order a Phil BB doe some older SR/NR cranks for the Hetchins. I thought I needed an ISO taper but when asking Phill which length would work better the said I needed JIS??

    so which would be correct? they offered this " We offer a 113mm JIS bottom bracket, which we can custom offset to +3mm on the drive side."

    I would certainly order a custom offset provided the taper was correct.

    the other two options were 110.5 with 3mm right offse BRSDoR. or a 115 with a 5mm right offset BRSD5R.

    the Campy catalog I use for reference (the catlogue 18) calls for a 112 spindle with 3mm of right offset for a English BB?

    so which do I get?

    Sheldon seems to say Campi (atleast older) uses a ISO taper.

    thanks for you insight
    Bianchis '87 Sport SX, '90 Proto (2), '91 Boarala 'cross, '93 Project 3, '88 Trofeo, '86 Volpe, '89 Axis, '79 Mixte SOLD, '99 Mega Pro XL Ti, '97 Ti Megatube, , '90 something Vento 603,

    Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '86 Bertoni (sold), '09 Motobecane SS, '98 Hetchins M.O., '09 K2 Mainframe, '89 Trek 2000, '?? Jane Doe (still on the drawing board), '90ish Haro Escape

  2. #2
    Senior Member shnibop's Avatar
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    If you are using the crank you got from me, you want:

    BRS16R Stainless Steel Bottom Bracket 68/73mm - JIS
    $119.00
    Stainless Steel Bottom Bracket
    Description: 68/73mm- JIS Length(mm): 116 Offset(mm): R+5 Weight(gm):222


    That crank is post CPSC so it takes the wider spindle, trust me, it was a major headache figuring that one out lol.

  3. #3
    Bianchi Goddess Bianchigirll's Avatar
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    yes that is the crankset. thank you so much. I was not aware there was change in the cranks under the reflector laws LOL

    if I moderator stumbles on this thread you can close it, unless others wish to keep debating this.
    Bianchis '87 Sport SX, '90 Proto (2), '91 Boarala 'cross, '93 Project 3, '88 Trofeo, '86 Volpe, '89 Axis, '79 Mixte SOLD, '99 Mega Pro XL Ti, '97 Ti Megatube, , '90 something Vento 603,

    Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '86 Bertoni (sold), '09 Motobecane SS, '98 Hetchins M.O., '09 K2 Mainframe, '89 Trek 2000, '?? Jane Doe (still on the drawing board), '90ish Haro Escape

  4. #4
    Disraeli Gears Charles Wahl's Avatar
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    Riding: 1960s Falcon commuter; Queued: 1977 Bob Jackson, 1983 Serotta Club Special, 1984 Motobécane Team Champion, 1983 Guerciotti SLX, 1974 Harding (like Holdsworth Pro), 1974 Peugeot PX10LE, 1970s Jeunet Franche-Comté, 1974 Raleigh International
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    Lore is that pre-1994 Campy taper was slightly larger (end dimension) than ISO, and they changed to ISO in 1994. That's why Phil Wood has recommended the JIS. They didn't make an old-Campy taper, probably because it's close enough to JIS. For a "chunkier" taper end, you'd want a slightly shorter spindle, theoretically, than the original Campy one. Campy road spindles changed at CPSC-time because the crank arm raised boss on the back side was changed. Here's a useful link at Bicycle Classics:
    http://00eda5d.netsolhost.com/bottom.html

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