Advertise on Bikeforums.net



User Tag List

Results 1 to 19 of 19
  1. #1
    Senior Member boostbutt's Avatar
    Join Date
    Oct 2008
    Location
    Singapore
    My Bikes
    Parlee Z3 / CiOCC Mockba 80 (SS)
    Posts
    166
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Shimano Sante Crank - possible to get 42mm chainline with chainring at outer pos?

    hope I can get some help here....I've seen some build on the net with shimano 600 that has the chairing mounted on the outer position but has been knocking my head on the wall on how this can be achieved....

    I have a Sante crank (Shimano) from the late 80's that I intend to use but would very much prefer to have the chainring on the outer position. Its going to go on a frame with 120mm fork ends (spanking new CIOCC Mockba 80). Will the shorted BB available to me achieve this (JIS 103mm)?

    I'm sure some of you have done this successfully, just that I cannot find anything conclusive with regard to this question....

  2. #2
    Senior Member
    Join Date
    Mar 2008
    Location
    Montreal Quebec, Plateau
    My Bikes
    91 bridgestone rb-2, Univega viva sport, 04 masi Nouva Strada,Dave Scott Ironman, Changes like every month
    Posts
    359
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    my experience

    I had an 86 126mm spaced centurion Ironman. I used a Shimano 107mmbb and had a 600ex crank with a 600 arabesque 45t ring. Chainline was acceptable. I have no idea why there was a 600 series 45t, but Its kind of a holy grail ring considering it was free and very round
    "tongue is big, like dog"

  3. #3
    Senior Member boostbutt's Avatar
    Join Date
    Oct 2008
    Location
    Singapore
    My Bikes
    Parlee Z3 / CiOCC Mockba 80 (SS)
    Posts
    166
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    is that with the chainring in the outer position?

  4. #4
    Senior Member boostbutt's Avatar
    Join Date
    Oct 2008
    Location
    Singapore
    My Bikes
    Parlee Z3 / CiOCC Mockba 80 (SS)
    Posts
    166
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    anyone?

  5. #5
    Senior Member filtersweep's Avatar
    Join Date
    Mar 2004
    Posts
    2,615
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I really do not understand the obsession with chainline around here. I run an old pantographed 600 in the outer position on a conversion with no issues using the shortest spindled Shimano BB I could find. Is the chainline 42? I am sure it is not. Am I "successful"? Yes. It rides silently and the chain stays on.

    Seriously, if people are going to cludge together a bunch of parts never designed for a 42 mm chainline, they need to accept the reality that while they might have a perfectly functional, silent drive train, it doesn't measure up perfectly. But who really cares? Are the chainline cops going to arrest you?

  6. #6
    Pants are for suckaz HandsomeRyan's Avatar
    Join Date
    Mar 2007
    Location
    Mt. Airy, MD
    My Bikes
    Hardtail MTB, Fixed gear, and Commuter bike
    Posts
    2,579
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by filtersweep View Post
    Are the chainline cops going to arrest you?
    They will. Forcefully.


  7. #7
    car dodger norskagent's Avatar
    Join Date
    Aug 2005
    Location
    garner/raleigh nc
    Posts
    3,285
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    forget 42, just do what it takes to get it close front and rear.
    1989 Schwinn Paramount OS
    1980 Mclean/Silk Hope Sport Touring
    1983 Bianchi pista
    1976 Fuji Feather track
    1979 raleigh track
    "I've consulted my sources and I'm pretty sure your derailleur does not exist"

  8. #8
    Senior Member
    Join Date
    Sep 2006
    Location
    Van BC
    Posts
    3,744
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    A 107mm JIS bb will get 105 and 600 cranks close enough to 42 mm at the outer position.

  9. #9
    Senior Member boostbutt's Avatar
    Join Date
    Oct 2008
    Location
    Singapore
    My Bikes
    Parlee Z3 / CiOCC Mockba 80 (SS)
    Posts
    166
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    thanks for sharing Mander.

    And to filtersweep - I'm currently purchasing parts online to get this build done so I hope you can understand that any inputs from BF regarding the chainline of 42mm or 'close to that without causing serious problems' on the outer chainring is valuable for me. I get the wrong part and my build gets delayed a couple of weeks. Plus I'm left with a pretty much useless BB that I cannot use.

    I believe many ppl are building SS/Fixed on the cheap themselves. while many have done it successfully the first time round, many have also gone through painful experiments with BB/Crank/Hub combinations to get to something usable. Perhaps its high time to build up a list of parts that give one a 42 +/- 1.5mm chainline perhaps? I can do this and share with everyone but will need all sorts of inputs.

  10. #10
    Veteran Bastard Scrodzilla's Avatar
    Join Date
    May 2009
    Location
    San Diego, CA
    Posts
    24,135
    Mentioned
    24 Post(s)
    Tagged
    2 Thread(s)

    ..

  11. #11
    Get on your bikes & ride! xB_Nutt's Avatar
    Join Date
    May 2006
    Location
    Lextown
    My Bikes
    See signature (it varys day to day)
    Posts
    1,071
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by boostbutt View Post
    Perhaps its high time to build up a list of parts that give one a 42 +/- 1.5mm chainline perhaps? I can do this and share with everyone but will need all sorts of inputs.
    Here's a good start:
    http://sheldonbrown.com/gloss_ch.html#chainline
    Litespeed Classic
    Soma Double Cross DC

  12. #12
    Senior Member
    Join Date
    Jan 2005
    Posts
    1,299
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    be sure to run the original biopace ring!

  13. #13
    Senior Member
    Join Date
    Nov 2009
    Posts
    7,118
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by dookie View Post
    be sure to run the original biopace ring!
    there is a guy that posted his bike in the track forums with a biopace ring:

  14. #14
    Senior Member
    Join Date
    May 2008
    Location
    Davis/Lafayette, CA
    My Bikes
    1984 trek 460 conversion, 2008 Lynskey R320, Peloton track bike, 1990's MBK trainer, 2004 Fisher tassajara, 70's Raleigh Gran prix. 70's moto mirage conversion (stolen), 80's Shogun Kaze (sold)
    Posts
    2,015
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by filtersweep View Post
    I really do not understand the obsession with chainline around here. I run an old pantographed 600 in the outer position on a conversion with no issues using the shortest spindled Shimano BB I could find. Is the chainline 42? I am sure it is not. Am I "successful"? Yes. It rides silently and the chain stays on.

    Seriously, if people are going to cludge together a bunch of parts never designed for a 42 mm chainline, they need to accept the reality that while they might have a perfectly functional, silent drive train, it doesn't measure up perfectly. But who really cares? Are the chainline cops going to arrest you?
    my first conversion had a chainline that was so off that the chain hopped off the cog, jammed up in the spokes and curled like when you rotafix a cog, and proceeded to taco my chainring and bend my crankarm spider (some cottered POSs that were on the motobecane when i found it)

  15. #15
    Senior Member bigvegan's Avatar
    Join Date
    Feb 2009
    Posts
    659
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by filtersweep View Post
    Are the chainline cops going to arrest you?
    No, but if your chainline is off and you're riding fixed, you can throw the chain off, which gets awkward if you're not using a brake.

    If you want a straight chainline with a road crank, you either move the chainring to the other side of the spider, or you buy a BB with a different spindle length.

  16. #16
    Los Angeles Colin255's Avatar
    Join Date
    Dec 2009
    Posts
    42
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by thirdgenbird View Post
    there is a guy that posted his bike in the track forums with a biopace ring:

    what seat is that
    [SIGPIC][/SIGPIC]

  17. #17
    Senior Member filtersweep's Avatar
    Join Date
    Mar 2004
    Posts
    2,615
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Of course there are limits. My point is simply that it doesn't need to be "perfect."

    Quote Originally Posted by LupinIII View Post
    my first conversion had a chainline that was so off that the chain hopped off the cog, jammed up in the spokes and curled like when you rotafix a cog, and proceeded to taco my chainring and bend my crankarm spider (some cottered POSs that were on the motobecane when i found it)

  18. #18
    Senior Member filtersweep's Avatar
    Join Date
    Mar 2004
    Posts
    2,615
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The irony is that one person can say they use an RD2 with a 103BB and it works great, and the other will say that it was a nightmare--- or for any other combination not specifically designed for a 42 chainline. I generally refer to the sheldon brown bible for such reference---- the BB page.

    I wonder how many people who have thrown chains had the rear wheel creep (creating slack), or they had worn/broken teeth somewhere.... or a bend spider.

    Quote Originally Posted by boostbutt View Post
    thanks for sharing Mander.

    And to filtersweep - I'm currently purchasing parts online to get this build done so I hope you can understand that any inputs from BF regarding the chainline of 42mm or 'close to that without causing serious problems' on the outer chainring is valuable for me. I get the wrong part and my build gets delayed a couple of weeks. Plus I'm left with a pretty much useless BB that I cannot use.

    I believe many ppl are building SS/Fixed on the cheap themselves. while many have done it successfully the first time round, many have also gone through painful experiments with BB/Crank/Hub combinations to get to something usable. Perhaps its high time to build up a list of parts that give one a 42 +/- 1.5mm chainline perhaps? I can do this and share with everyone but will need all sorts of inputs.

  19. #19
    Senior Member
    Join Date
    May 2008
    Location
    Davis/Lafayette, CA
    My Bikes
    1984 trek 460 conversion, 2008 Lynskey R320, Peloton track bike, 1990's MBK trainer, 2004 Fisher tassajara, 70's Raleigh Gran prix. 70's moto mirage conversion (stolen), 80's Shogun Kaze (sold)
    Posts
    2,015
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by filtersweep View Post
    Of course there are limits. My point is simply that it doesn't need to be "perfect."
    people who obsess over .5-1mm are crazy.

    but when it's off like 5-10 like mine was (can't remember, and that bike got stolen haha) it can be... exciting

Posting Permissions

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