Advertise on Bikeforums.net



User Tag List

Results 1 to 9 of 9
  1. #1
    Junior Member
    Join Date
    Aug 2008
    Posts
    7
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    compatibility question

    I had the following:
    Front derailleur: SHIMANO DEORE FD-M510, Top Swing
    Front shifter: SHIMANO Alivio SL-M410 Mega 8 Speed STI Rapidfire Pods
    Rear Derailleur: SHIMANO DEORE SLX RDM-662SGS BLACK long cage (not rapidrise)
    Rear shifter: SHIMANO Alivio SL-M410 Mega 8 Speed STI Rapidfire Pods


    My front shifter broke, I bought a deore front shifter (Shimano Deore SL-M590 Left Shift Lever)


    The LBS is telling me that they can't get it to shift into all three front chainrings. They're also saying that the front derailleur (the one that came with the bike) isnt' compatible with an 8 speed drivetrain (even though it worked perfectly when I got it).

    Are they telling me the truth in any way, or should it be able to work?

    More specs on the bike

  2. #2
    Senior Member
    Join Date
    Apr 2009
    Location
    New Rochelle, NY
    My Bikes
    too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
    Posts
    22,117
    Mentioned
    60 Post(s)
    Tagged
    1 Thread(s)
    I don't know that chainring spacing on 8s is any wider than on 9s so I can't imagine what the dealer is talking about.

    What specifically is the problem? I'd ask for a detailed answer, or get second opinion.

    BTW- If the shop sold you the shifter, it's up to them to make it work, or sell the correct one. If you bought it elsewhere understand that some mechanics are temperamentally not able to get things they shop didn't sell to work right.
    FB
    Chain-L site

    An ounce of diagnosis is worth a pound of cure.

    “Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

    “One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

    WARNING, I'm from New York. Thin skinned people should maintain safe distance.

  3. #3
    Senior Member
    Join Date
    Aug 2010
    Location
    Washington
    My Bikes
    Serotta Davis Phinney, 1992 Serotta T Max,1984 Specialized Allez, Olmo, 1974 Strawberry,Redline bmx, ect.,
    Posts
    472
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    That combo should work. They could have routed the cable wrong, but they should know the right way?

  4. #4
    Low car diet JiveTurkey's Avatar
    Join Date
    Aug 2007
    Location
    Corvallis, OR, USA
    My Bikes
    2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
    Posts
    2,397
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    You could put any indexed-triple Shimano MTB front shifter, including the one you have, and it would work.

    Only ways I can think of how to make it not work: Cable was installed too taught and there's too much tension to allow it to shift onto the inner chainring. Limit screw(s) too tight (though there was no reason to even touch these). Cable installed with shifter in the #2 or #3 position, so not enough tension to shift to outer chainring.

    Even if the FD was not compatible with an 8-speed system, it doesn't explain why they can't get it to shift onto all the chainrings.

    Honestly, it's an easy job. Maybe take this opportunity to learn how to do it yourself. http://www.parktool.com/blog/repair-...ur-adjustments
    Quote Originally Posted by slopvehicle View Post
    Not wearing a helmet makes me more aware of my surroundings. I find myself anticipating the hardness of concrete 50 or 100 feet in front of me, it's almost a zen-like connection between my face and the pavement.

  5. #5
    Senior Member
    Join Date
    Oct 2010
    Location
    Hampton, VA
    My Bikes
    2006 Trek 7.5FX, 2010 Trek 7.3FX, Nashbar Cyclocross
    Posts
    144
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The front derailleur is technically supposed to be used with 9 speed parts according to the Shimano tech docs, but that should be a non-issue if the chainline is correct. Sounds like they are blowing smoke up your you know what. That front shift lever should be fine. It sounds like they might not know what they're doing.

  6. #6
    Senior Member catonec's Avatar
    Join Date
    May 2009
    Location
    burlington VT.
    Posts
    2,308
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    that should all work just fine
    2010 Kestrel RT900SL, 800k carbon, chorus/record, speedplay, zonda
    1997 Trek ZX6000, 6061w/manitou spyder, xt/xtr, time atac

  7. #7
    Senior Member
    Join Date
    Oct 2007
    Location
    West Yorkshire, United Kingdom
    Posts
    3,537
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Using a mech from any Shimano 8 or 9 groupset will work with any Shimano 8 or 9 speed shifter, think you need to find a new bike shop who know what they are doing.

  8. #8
    Low car diet JiveTurkey's Avatar
    Join Date
    Aug 2007
    Location
    Corvallis, OR, USA
    My Bikes
    2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
    Posts
    2,397
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    To clarify, you should match the speed of the FD to the chain (so the FD cage width matches the outer width of the chain), for smoothest shifting. But, if they're all in the same family (indexed Shimano MTB) you would still be able to shift to all rings, no matter which FD you used.
    Quote Originally Posted by slopvehicle View Post
    Not wearing a helmet makes me more aware of my surroundings. I find myself anticipating the hardness of concrete 50 or 100 feet in front of me, it's almost a zen-like connection between my face and the pavement.

  9. #9
    SmallieBiggs
    Guest
    +1,000,000

    All the parts you listed should work together without a problem. It is likely if you picked it up and paid for the parts and some $$ for install (but should be less than the full set-up price as they were not able to do it) you can get it to work with some effort, a set of metric allen keys, and some reading on the interwebs.

Posting Permissions

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