Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10
  1. #1
    Junior Member
    Join Date
    Sep 2007
    Posts
    8
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    question of DA cranks

    ok so I am new to track racing but not bikes or racing for that matter. i have been doing my research on building my track bike so that i get it set up just the way i want. when it comes to cranks im trying to figure something out. I would like to use DA track spec cranks(165mm) with the 109.5 octalink BB or i was thinking to get a set of DA 7700 9speed cranks(165mm) and then use the sugino messanger rings that work off of a 130 BCD and are 1/2"x1/8" also using an 109.5mm octalink BB.

    so is there really going to be a difference there in stiffness and shouldnt my chain line be the same either way? also is it that the sugino messenger rings are that bad? I understand that i wont be able to use other peoples rings and so on.

  2. #2
    Senior Member
    Join Date
    Jul 2007
    Posts
    146
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Your chainline will probably be off if you tried to use a road double/triple crankset. Theres a reason why they make track specific components. Sugino messenger rings arent bad, I use them on the street. But some may say that they dont go high enough in tooth count. Though you can probably try to get away with 44 x 14 or something like that for race gearing.

    Since youre new to track riding, you probably wouldnt notice any difference or loss of stiffness anyway with messenger rings, its not like theyre bottom of the barrel no-name brand junk.

    As for using other peoples chainrings. Most people at the track use 144bcd cranksets and chainrings. If you have 130bcd cranks, you obviously cant use 144bcd chainrings.

    All in all, youll just be better off with a proper set of 144bcd track cranks (Dura-Ace, Sugino 75 etc) for the long run if you decide to stick with/be serious with track riding.

  3. #3
    A little North of Hell
    Join Date
    Mar 2006
    Posts
    4,394
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    chainring on the inside of a DA-7700 will give you a 42ish chailine +/-, and they will be plenty stiff.
    [SIGPIC][/SIGPIC]
    XXXI

  4. #4
    Run What 'Ya Brung bonechilling's Avatar
    Join Date
    Jun 2006
    Posts
    5,696
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Sugino makes Messenger chainrings up to 48t, which, with the right cogs, can give you enough gear for track racing. The chainline will likely be off, and I'm pretty sure you can't get a spindle shorter than 109.5, so there's not a lot of room to work with there.
    Quote Originally Posted by doofo View Post
    the main cause of fit problems is riding your bike

    you should have just stopped riding so you could focus on color coordination

  5. #5
    Junior Member
    Join Date
    Sep 2007
    Posts
    8
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ok so its not ideal to use them. well then i guess its penny saving time so that i can get DA track cranks. and yes i know i could get a less expensive crank but i have this problem, i like the nice stuff

  6. #6
    Senior Member
    Join Date
    Jan 2009
    Posts
    346
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Why not check out a set of Omniums if you don't want to drop the cash on DA track spec stuff?

    They are actually stiffer.....

  7. #7
    Veteran Racer TejanoTrackie's Avatar
    Join Date
    Jul 2009
    Location
    Ciudad de Vacas, Tejas
    My Bikes
    28 frames + 73 wheels
    Posts
    7,851
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by merky works View Post
    ok so its not ideal to use them. well then i guess its penny saving time so that i can get DA track cranks. and yes i know i could get a less expensive crank but i have this problem, i like the nice stuff
    The Sugino 75s are just as well finished and high quality as the Dura Ace.

  8. #8
    Senior Member
    Join Date
    Feb 2009
    Posts
    630
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Get the best track crank you can afford. This is not a slapped together fixie, so do it up right.

  9. #9
    Run What 'Ya Brung bonechilling's Avatar
    Join Date
    Jun 2006
    Posts
    5,696
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Sugino 75s cost more that DA do, now. I think they're capitalizing on their hipster cachet.
    Last edited by bonechilling; 07-24-09 at 10:37 AM.
    Quote Originally Posted by doofo View Post
    the main cause of fit problems is riding your bike

    you should have just stopped riding so you could focus on color coordination

  10. #10
    Veteran Racer TejanoTrackie's Avatar
    Join Date
    Jul 2009
    Location
    Ciudad de Vacas, Tejas
    My Bikes
    28 frames + 73 wheels
    Posts
    7,851
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by bonechilling View Post
    Sugino 75s cost more that DA do, now. I think they're capitalizing on their hipster cachet.
    It depends. The standard Sugino 75 with plain satin silver finish are still less than DA, however, the ones with fancy anodized bling and the upscale Grand Mighty with engraving are more. Still, I agree that they now cost more than before. The Sugino 75 came standard on my track racing bike, and I bought much cheaper Sugino RD for my road fixie. I am definitely NOT hip.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •