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  • 25-01-2011 11:22am
    #1
    RobFowl
    Moderators, Science, Health & Environment Moderators Posts: 11,669 Mod ✭✭✭✭


    Rotor Q rings 2008/9/10 technology
    q_animation.gif

    Shimano biopace 1980's

    325E7655-C7E7-4B95-B796-9B5AA91C8A0A.jpeg


    Elliptical chainset 1920-30's

    B7C758B9-C6D9-4D86-B3BD-9E82CB4ED9CC.jpeg


Comments

  • #2
    Captain Havoc
    Moderators, Sports Moderators, Regional South East Moderators Posts: 11,394 Mod ✭✭✭✭Captain Havoc


    Didn't we see something similar last year, I think it might have been on a David Millar TT bike.

    https://ormondelanguagetours.com

    Walking Tours of Kilkenny in English, French or German.



  • #3
    Lumen
    Registered Users, Registered Users 2 Posts: 31,220 ✭✭✭✭Lumen


    Those Shimano 600 cranks were the first cranks I ever loved.


  • #4
    kumate_champ07
    Closed Accounts Posts: 7,150 ✭✭✭kumate_champ07


    Lumen wrote: »
    Those Shimano 600 cranks were the first cranks I ever loved.

    ye they are a very nice design, not too skinny not too fat. I had them on the last bike I sold. them and the same era Shimano 105 cranks were the nicest imo

    if anyone is interested I have a few used sets of Shimano Bio chainrings available FOC


  • #5
    mloc123
    Registered Users, Registered Users 2 Posts: 9,454 ✭✭✭mloc123


    Lumen wrote: »
    Those Shimano 600 cranks were the first cranks I ever loved.

    'loved' eh ;)


  • #6
    DualFrontDiscs
    Registered Users, Registered Users 2 Posts: 932 ✭✭✭DualFrontDiscs


    mloc123 wrote: »
    'loved' eh ;)
    Crank.


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  • #7
    Quigs Snr
    Registered Users, Registered Users 2 Posts: 4,183 ✭✭✭Quigs Snr


    I first encountered oval cranks on a 1989 Raleigh Montage MTB which I transferred to my Raleigh Pro Race 1991. I think I swapped back and the Montage is gone now. Must check that. Loved those cranks though.

    Tried a demo set of those Rotor rings. Funnily enough, did not notice the difference at all.. took someone elses bike and rode for 2 hours, only afterwards was I told they were rotar cranks.


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