Advertise on Bikeforums.net



User Tag List

Results 1 to 9 of 9
  1. #1
    Senior Member Tunnelrat81's Avatar
    Join Date
    Jun 2006
    Posts
    1,262
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Is this reasonable to expect from my LBS?

    Took a friend's bike down to my LBS for a BB service since his crankset was a bit loose and I didn't have the large Allen wrench to remove the cap from the crank arms (see picture). I've got the Park BB tool with the crank end for Shimano Ultegra star nuts, but this Truvativ is different, and I figured taking it to the shop was safer.

    I was taking care of a few other personal things while I was there as well and didn't think to inspect their work until I got home. This is what I found.... And in addition, although I'm no expert in how cranksets are supposed to feel when properly tensioned (aside from the way my ultegra and my wife's Gossamer cranks feel) this "just serviced" crankset seems to have too much bearing pressure/Drag. We're doing our first century tomorrow morning early, and won't be able to get the bike to a shop until afterward. Should I go back and have a chat with them? Is it reasonable to expect to get a crankset service ($20) without having them bugger everything up with their slipping tools? Or are tools for these types of cups poorly designed enough that it's not the mech's fault? I don't want to get upset if it's not warranted, but honestly...I've really torqued on my Ultegra BB cups with my Park tool wrench and never had it slip off like this. If it was my bike, I'd be inclined to go ask them for a new BB cups.

    *edit* And does anyone know how to set the bearing pre-load and "lock" on this type of crankset? On the Ultegra's its intuitive with the plastic cap and pinch bolts,
    but this one is quite different.

    -Jeremy






  2. #2
    Senior Member ClarkinHawaii's Avatar
    Join Date
    Jan 2010
    Posts
    1,121
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Figure out ahead of time how you're going to handle it if/when they say "It was like that when you brought it in".

  3. #3
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,292
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Tightening the crank on IS the preload. Once that center bolt is up to spec and there's no play in the system it's done. That's a little bit more damage than i'd expect from a shop tool used on a external cup like that.

    Also, the directions that damage is caused by cup removal, not installation. There should be no need to touch those unless the cups were loose - ask them what they did. And if the cups werne't loose, then that BB was worn out and they've now overtorqued the centerbolt to get rid of the play, if there isn't any. If you do know what they did please post.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  4. #4
    Senior Member Tunnelrat81's Avatar
    Join Date
    Jun 2006
    Posts
    1,262
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by operator View Post
    Tightening the crank on IS the preload. Once that center bolt is up to spec and there's no play in the system it's done. That's a little bit more damage than i'd expect from a shop tool used on a external cup like that.

    Also, the directions that damage is caused by cup removal, not installation. There should be no need to touch those unless the cups were loose - ask them what they did. And if the cups werne't loose, then that BB was worn out and they've now overtorqued the centerbolt to get rid of the play, if there isn't any. If you do know what they did please post.
    Well when I rolled the bike in, I told them that the cranks or BB were loose and asked them to check them since I wasn't familiar with the crank's clamping mechanism Apparently they immediately initiated "operation BB overhaul" and didn't listen to their inner voice as they realized that the BB cups were in fact already tight. I should have just asked here and tightened the center bolt myself (which I DO Have the wrench for), saved him the 20 bucks and not felt like a fool. Thankfully I'm sure the BB for this thing isn't very expensive. Just disappointing that they didn't ask any further questions or take the time to actually find out what the problem was before wrenching the whole BB off and charging an 'overhaul.'

    -Jeremy

  5. #5
    Senior Member
    Join Date
    Jul 2004
    Location
    Brooklyn NY
    Posts
    4,699
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    The whole point of bringing anything into the shop is that they will have the proper tool for the job. It doesn't look like they did and used something "close enough". I could have done that myself, and if it didn't work I'd have stopped before I goobered it up like they did.

  6. #6
    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
    19,944
    Mentioned
    31 Post(s)
    Tagged
    1 Thread(s)
    You asked if it was reasonable to expect shoddy work, and I don't know if it is or not, but can say that there's lots of it out there. That's why so many serious riders insist on doing their own work.

    Whether you put up with it is up to you. In this case, I'd go back and politely ask for an explanation, and make any future patronage of this shop contingent on what they have to say for themselves.

    BTW- a bit of general advice. Don't bring other peoples bikes to a third party or shop for service. You're unnecessarily putting yourself in the middle of what can turn out to be a bad situation. If a friend asks you to work on his bike, and it involves something beyond your capability, have him bring it to someone else himself. It's fine to recommend someone else, but don't act as a go between and risk getting squashed.
    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.

  7. #7
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,292
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Tunnelrat81 View Post
    Well when I rolled the bike in, I told them that the cranks or BB were loose and asked them to check them since I wasn't familiar with the crank's clamping mechanism Apparently they immediately initiated "operation BB overhaul" and didn't listen to their inner voice as they realized that the BB cups were in fact already tight. I should have just asked here and tightened the center bolt myself (which I DO Have the wrench for), saved him the 20 bucks and not felt like a fool. Thankfully I'm sure the BB for this thing isn't very expensive. Just disappointing that they didn't ask any further questions or take the time to actually find out what the problem was before wrenching the whole BB off and charging an 'overhaul.'

    -Jeremy
    Rofl.

    They realized the cups were already tight and proceeded to reinstall them anyways? Haha. Anyways, I was going to say even if the cups were loose all they had to do was tighten them. If they weren't then the bearings are worn out.

    Quote Originally Posted by zacster View Post
    The whole point of bringing anything into the shop is that they will have the proper tool for the job. It doesn't look like they did and used something "close enough". I could have done that myself, and if it didn't work I'd have stopped before I goobered it up like they did.
    They did have the proper tool. Just not a very good one. I bet you they used the version that looked like this:

    Which is a home mechanic version of that tool. It slips, very easily when anything is not 100% new.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  8. #8
    Senior Member vettefrc2000's Avatar
    Join Date
    Jun 2008
    Location
    Somewhere North of Detroit and moving fast!
    My Bikes
    1976 Fuji America 1980 Fuji America 1984 Fuji America TS V 1982 Fuji Royale II 1993 Trek 970 1997 Trek 5000 2004 Trek Calypso 2007 Trek Portland 2008 Surly LTH
    Posts
    697
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Tunnelrat81 View Post
    Took a friend's bike down to my LBS for a BB service since his crankset was a bit loose and I didn't have the large Allen wrench to remove the cap from the crank arms (see picture). I've got the Park BB tool with the crank end for Shimano Ultegra star nuts, but this Truvativ is different, and I figured taking it to the shop was safer.

    I was taking care of a few other personal things while I was there as well and didn't think to inspect their work until I got home. This is what I found.... And in addition, although I'm no expert in how cranksets are supposed to feel when properly tensioned (aside from the way my ultegra and my wife's Gossamer cranks feel) this "just serviced" crankset seems to have too much bearing pressure/Drag. We're doing our first century tomorrow morning early, and won't be able to get the bike to a shop until afterward. Should I go back and have a chat with them? Is it reasonable to expect to get a crankset service ($20) without having them bugger everything up with their slipping tools? Or are tools for these types of cups poorly designed enough that it's not the mech's fault? I don't want to get upset if it's not warranted, but honestly...I've really torqued on my Ultegra BB cups with my Park tool wrench and never had it slip off like this. If it was my bike, I'd be inclined to go ask them for a new BB cups.

    *edit* And does anyone know how to set the bearing pre-load and "lock" on this type of crankset? On the Ultegra's its intuitive with the plastic cap and pinch bolts,
    but this one is quite different.

    -Jeremy








    If it was not like that when you dropped it off I would be smoking pissed. (Next time just get the tool and do it yourself.)

  9. #9
    Senior Member
    Join Date
    Dec 2005
    Posts
    7,819
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I agree.

Posting Permissions

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