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  1. #1
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    Let a friend borrow my bike, need help.

    To start off with ill let you know im new to cycling, well, new to anything more advance than just simply riding, have never dne any mechanical work on one before, so I dont know the correct terms but I will try and describe it as best as I can.

    Well, I let a friend use my bike a while back and got it back today, and it wont shift anymore lol. I can shift into very few gears. The bike is a GT Avalanche 3.0 21 speed, all stock, nothings been changed. The front gears will shift between the first and second smallest with no problem, but when I try to go to the largest it just makes grinding noises(chain rubbing) and then often the chain comes off. With the rear gears all it does is stay in whatever gear I can manually put it in, wont shift at all. This was the last time ill let anyone borrow it, thats for sure.

    I asked around at a couple stores and they said it would be 45$-49$ to tune it up, but everythign else is fine, only problem is with the gears, I was wondering if anyone knew a website with instructions on how to adjust this without spending the 49$, and waiting another week to get my bike back. Thanks!

    -Lurius

  2. #2
    My bike's better than me! neil0502's Avatar
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    www.parktool.com
    www.sheldonbrown.com

    Look around each site for derailleur adjustment . . . and stop loaning out your bike

  3. #3
    BIKE MECHANIC king koeller's Avatar
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    Before you loaned the bike out did it shift properly? Did they wipe out?
    Has the bike been sittin' around for some time?
    From what you describe,the bike needs a tune up.
    If you don't know what to do, then take it to a bike shop and pay them for their knowledge.They can fix your problem.That's their job. To me,...the problem sounds two-fold, cable stretch, (or replacement,) and the adjustment of inner and outer limit screws, on front derailler.
    I could try to explain what to do but without seeing the bike...
    I would start by making sure that all cables are not rusted and fully lubricated in the cable housing.
    Shifting the deraillers to Zero, or the point where the derailler is off the spring and onto the outer or inner limit screw, (small cog on back and small chain ring on front,)
    check for cable stretch.Take up the slack either by adjustment barrel or lock nut.
    make sure deraillers are perfectly in sync, in terms of chain alignment,or adjust inner and outer limit screws. Now, test pedal the bike through all the possible gear combinations, shifting on large, middle and small chain rings.I hope this helps to give you an idea of what the bike shop will do.Don't forget proper lubrication of all components. A bike is a machine and needs tender loving care to perform at it's best.
    If you want to learn how to fix bikes, there are some great books on the subject, you can even hang out at the local bike shop and ask ton's of questions.
    good luck!
    1976 Centurion Super Lemans 23"C-T Double butted chrome-moly Nervex style lugs Campy NR Wright Leather fiamme red label tubular rims Metallic silver, 1984-BCA 21.5"c-t Tange double butted lugged Shimano bio-pace Leather Brooks B-17 Champion Standard honey Black w Red head tube Lugged frame, 1986 FOCUS 22"c-t Tange double butted lugged Suntour XC Sport Sugino VP triple Dia-Compe Canti's Brooks B-17 Champion Standard, Trek Elance 400D 1986 Reynolds 531 Full Shimano SIS Black metallic silver

  4. #4
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    Don't loan your GF, dog, car or bike

  5. #5
    BIKE MECHANIC king koeller's Avatar
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    yes, never borrow or loan any thing.
    many friendships end this way.
    1976 Centurion Super Lemans 23"C-T Double butted chrome-moly Nervex style lugs Campy NR Wright Leather fiamme red label tubular rims Metallic silver, 1984-BCA 21.5"c-t Tange double butted lugged Shimano bio-pace Leather Brooks B-17 Champion Standard honey Black w Red head tube Lugged frame, 1986 FOCUS 22"c-t Tange double butted lugged Suntour XC Sport Sugino VP triple Dia-Compe Canti's Brooks B-17 Champion Standard, Trek Elance 400D 1986 Reynolds 531 Full Shimano SIS Black metallic silver

  6. #6
    Ogr8nwmypstmksnosnse pgoat's Avatar
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    I ususally keep one decent (but not expensive or precious to me) bike for the occasional friend who needs a ride - comes in handy because I agree, you should not lend your favorite bike(s) or your only bike out, but you can look kinda bad if you refuse a good friend. Since I usually have at least 2 or 3 minimum I try to designate one as semi-expendable. (not the same as a clunker - you want a safe working bike so your friends do not turn into dead friends)

    came in handy two weeks ago - our friend's bike mysteriously no longer had rear brakes when she drove to our place and pulled her bike out of her car. She had had an awful morning already (got stuck in a traffic jam due to an accident and roadwork - 8 am on a saturday), and someone was trying to break into her apartment (that's how she woke up that morning! ) To top it all off, as she realized outside our bldng that her bike was messed up, she walked away in frustration - and stepped in a pile of dogcrap.

    How could I let her go home without a ride?? when we were done two hours later she was still upset but had smile on her face all the same

  7. #7
    My bike's better than me! neil0502's Avatar
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    Quote Originally Posted by pgoat
    To top it all off, as she realized outside our bldng that her bike was messed up, she walked away in frustration - and stepped in a pile of dogcrap.

    How could I let her go home without a ride?? when we were done two hours later she was still upset but had smile on her face all the same
    You, uh, might want to clean out your pedals really well

  8. #8
    Ogr8nwmypstmksnosnse pgoat's Avatar
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    Quote Originally Posted by neil0502
    You, uh, might want to clean out your pedals really well


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