Fitting Dura ace octalink Bottom Brackets

BigStu2
BigStu2 Posts: 794
edited December 2007 in MTB workshop & tech
Lads, short of removing the bottom bracket from my old Merida to check its size how do I know what length and shell size to order, ( 68 or 70mm ) currently fitted with approx 9 yr old ultegra octalinks, is there a standard size ? and how can they be measured while still on the bike :?
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Comments

  • nicklouse
    nicklouse Posts: 50,673
    measure the bb shell. 68 or 73mm wide.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • Splasher
    Splasher Posts: 1,528
    You won't have a 70mm as that was for bikes with Italian threads - you'll have either 68 or 73mm in Ultegra.

    IIRC, Dura-ace was only available in 68mm.
    "Internet Forums - an amazing world where outright falsehoods become cyber-facts with a few witty key taps and a carefully placed emoticon."
  • nicklouse
    nicklouse Posts: 50,673
    just take care as ther are about 4 axle lengths available in the V1 spline pattern.

    a lot depends on the number of rings.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown

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