Advertise on Bikeforums.net



User Tag List

Results 1 to 16 of 16
  1. #1
    Senior Member Sincitycycler's Avatar
    Join Date
    Mar 2005
    Location
    "Gosh honey, you pass more like Tony Rominger..."
    My Bikes
    2005 Scott CR1 Pro - 1992 Panasonix Fixed Conversion 60tx20t
    Posts
    3,219
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Nobody can solve my crossring upshifting dilemma!

    I have Campy Veloce on my 6 month old steel Lemond Sarthe and in the last month , the damn thing wants to upshift , particularly when I cross chain in 53/25-23-21.

    I've had three differnent mechanics look at it and they just fiddle with the cable tension. When they test it on the stand , it shifts pretty good and then on the road it's a different matter under hammering conditions. I even gobbed some grease on the cable guide under the BB as per Sheldon Brown's recommendation. Still doesn't help.

    Do I need a new cable, or does the rear derailleur need to be taken apart? Would a higher level grade of Campy help like Chorus or Record? Hep me pleeze!
    "How did all those 'Keep Off the Grass' signs get there?"

  2. #2
    Senior Member sydney's Avatar
    Join Date
    Jan 2004
    Posts
    9,428
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Why don't you try adjusting the cable tension yourself under actual conditions.If it's shifting from bigger to smaller cog try 1/4 turn counterclockwise at a time and check results.Nothing wrong with Veloce,and taking a derailer apart usually solves nothing.

  3. #3
    Banned.
    Join Date
    Oct 2004
    Posts
    4,418
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Don't cross chain.

  4. #4
    Banned wagathon's Avatar
    Join Date
    Apr 2005
    Posts
    1,728
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Just a guess but I'd say it is a combination of some or all of the following: chain is too long (stretched with age maybe?), the cogs are worn (you can tell by the shape of the "U-shape" between the teeth, e.g., are they a "u-shaped" ?), and/or the derailleur is at the wrong angle. Even if it should never be requred to go cross-chain, the bike still should accommodate that selection because it will happen even if you know it is contraindicated and are you not trying to go there. Even so, I think you still should be able to be in your big ring and, for example, 4-5 on a 5-spd cluster.

  5. #5
    53 miles per burrito urban_assault's Avatar
    Join Date
    Sep 2001
    Location
    Ft Worth, TX
    My Bikes
    Land Shark, Trek 1000, Iron Horse Rogue
    Posts
    1,485
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Did you mention to the shop that it was doing this on the 53/ 25-21 combo? I agree with Boston, you should not cross chain like that. Knock it down to the small ring before you get to the 21+ cogs.

  6. #6
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    25,419
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    53/25 shouldn't be used but there is nothing wrong with 53/21 or even 53/23. Do you have the correct bottom bracket spindle length? It sounds like your chainline is too far out.

  7. #7
    Senior Member Sincitycycler's Avatar
    Join Date
    Mar 2005
    Location
    "Gosh honey, you pass more like Tony Rominger..."
    My Bikes
    2005 Scott CR1 Pro - 1992 Panasonix Fixed Conversion 60tx20t
    Posts
    3,219
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by HillRider
    53/25 shouldn't be used but there is nothing wrong with 53/21 or even 53/23. Do you have the correct bottom bracket spindle length? It sounds like your chainline is too far out.
    Finally got it fixed. This sharp, young mechanic actually test rode the bike outside and was able to adjust everything OK by trial and error, the first mech I encountered to to do so .

    Good thing, I was getting pissed.
    All bikes shift good on the rack because there is no resistance!
    "How did all those 'Keep Off the Grass' signs get there?"

  8. #8
    Senior Member Sincitycycler's Avatar
    Join Date
    Mar 2005
    Location
    "Gosh honey, you pass more like Tony Rominger..."
    My Bikes
    2005 Scott CR1 Pro - 1992 Panasonix Fixed Conversion 60tx20t
    Posts
    3,219
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by BostonFixed
    Don't cross chain.
    Weird. I saw Lance climbing in th 2004 TDF and the camera zoomed in on gears and he was on the 53x25... for the longest time, while the others were in the 39T. Paul Sherwin said that because L.A. was in that config, he was able to accelerate better to react to any attacks(?).
    "How did all those 'Keep Off the Grass' signs get there?"

  9. #9
    53 miles per burrito urban_assault's Avatar
    Join Date
    Sep 2001
    Location
    Ft Worth, TX
    My Bikes
    Land Shark, Trek 1000, Iron Horse Rogue
    Posts
    1,485
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    So, if Lance jumped off of a cliff, would you do it too?

  10. #10
    Senior Member Nessism's Avatar
    Join Date
    Jun 2004
    Location
    Torrance, CA
    My Bikes
    Homebuilt steel
    Posts
    2,324
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Sincitycycler
    Finally got it fixed. This sharp, young mechanic actually test rode the bike outside and was able to adjust everything OK by trial and error, the first mech I encountered to to do so .

    Good thing, I was getting pissed.
    All bikes shift good on the rack because there is no resistance!
    I'm glad you got the bike fixed.

    This is a classic example of the need to learn how to adjust your own derailleurs!
    It takes a little trial and error but you will never learn if you run to the dealer every time the cable tension needs to be adjusted.
    Becareful buying/selling bike parts on-line. I learned the hard way. :(

    Good/Bad Trader Listing

  11. #11
    Senior Member jalexei's Avatar
    Join Date
    Sep 2004
    Posts
    112
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Weird. I saw Lance climbing in th 2004 TDF and the camera zoomed in on gears and he was on the 53x25...
    Lance also doesn't have to pay to replace worn-out/trashed bits...

  12. #12
    Senior Member Sincitycycler's Avatar
    Join Date
    Mar 2005
    Location
    "Gosh honey, you pass more like Tony Rominger..."
    My Bikes
    2005 Scott CR1 Pro - 1992 Panasonix Fixed Conversion 60tx20t
    Posts
    3,219
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by urban_assault
    So, if Lance jumped off of a cliff, would you do it too?
    If I offered you my arse, would you kiss it?
    "How did all those 'Keep Off the Grass' signs get there?"

  13. #13
    hello roadfix's Avatar
    Join Date
    May 2003
    Location
    Los Angeles
    My Bikes
    thank you for asking
    Posts
    18,502
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Sincitycycler
    Finally got it fixed. This sharp, young mechanic actually test rode the bike outside and was able to adjust everything OK by trial and error, the first mech I encountered to to do so
    You yourself could be that sharp, young mechanic simply by learning to tweek that little barrel adjuster on the fly. Believe me, this is one of the simplest adjustments most anyone can attempt and learn by trial and error. It ain't rocket science...
    .cinelli.olympic.surly.long.haul.trucker.kona.ku.surly.steamroller.
    .litespeed.classic.litespeed.firenze.bianchi.pista.dean.colonel.plus.more.

  14. #14
    53 miles per burrito urban_assault's Avatar
    Join Date
    Sep 2001
    Location
    Ft Worth, TX
    My Bikes
    Land Shark, Trek 1000, Iron Horse Rogue
    Posts
    1,485
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Sincitycycler
    If I offered you my arse, would you kiss it?


    Ohhhh I like the fiesty ones...but seriously, get a repair book and you wouldn't have such a 'dilemma'.

  15. #15
    Senior Member Sincitycycler's Avatar
    Join Date
    Mar 2005
    Location
    "Gosh honey, you pass more like Tony Rominger..."
    My Bikes
    2005 Scott CR1 Pro - 1992 Panasonix Fixed Conversion 60tx20t
    Posts
    3,219
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by The Fixer
    You yourself could be that sharp, young mechanic simply by learning to tweek that little barrel adjuster on the fly. Believe me, this is one of the simplest adjustments most anyone can attempt and learn by trial and error. It ain't rocket science...
    For some reason, it wasn't that simple. He had to loosen the cable at the rear deraileur and center the whole thing in a neutral position in the center cog and do this and that and etc...etc....

    Hulk's brain hurt..not understand...must smash pumpkin!
    Last edited by Sincitycycler; 10-31-05 at 12:53 PM.
    "How did all those 'Keep Off the Grass' signs get there?"

  16. #16
    hello roadfix's Avatar
    Join Date
    May 2003
    Location
    Los Angeles
    My Bikes
    thank you for asking
    Posts
    18,502
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Sincitycycler
    For some reason, it wasn't that simple. He had to loosen the cable at the rear deraileur and center the whole thing in a neutral position in the center cog and do this and that and etc...etc....
    Well, if necessary, that's part of the tweeking process.....
    .cinelli.olympic.surly.long.haul.trucker.kona.ku.surly.steamroller.
    .litespeed.classic.litespeed.firenze.bianchi.pista.dean.colonel.plus.more.

Posting Permissions

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