Brand new bike, chain/gear noise?
Excuse me in advance for the following. I am an inexperienced rider who just got his first "nice" bike and I don't know the terms very well, so hopefully I can explain it.
I just picked up my new Trek 7.2 FX today (they assembled it out of the box for me, so no test rides on it). I took it home and rode it around for a bit. After about ten minutes, I noticed that whenever I shifted into my 2nd gear on my (crankset?) front gears seemed to make a crunching noise as if they were in between gears. If I shift out (to 1st or 3rd) and back into 2nd, it will fix that problem. For this particular issue, maybe I'm shifting incorrectly...I don't know, but after it goes away, then it sounds like the chain is almost rubbing up against something. I looked down and I didn't see it rubbing or anything but it appeared as if the chain wasn't perfectly straight...like a very slight sway to left and right. Any ideas? :( |
There's not enough detail to confirm whether what you're seeing is normal, a mechanical problem, or a user problem. Since the bike is brand new bring it back to the shop, and let a mechanic take a look and test ride and see if you can manifest the issue in front of him, so he can either fix or explain it.
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Originally Posted by FBinNY
(Post 15577231)
There's not enough detail to confirm whether what you're seeing is normal, a mechanical problem, or a user problem. Since the bike is brand new bring it back to the shop, and let a mechanic take a look and test ride and see if you can manifest the issue in front of him, so he can either fix or explain it.
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Originally Posted by cicatrize
(Post 15577251)
Alright, I'll take it to my LBS tomorrow after work then. Just wanted to rule out something that might perhaps be obvious that I'm screwing up with.
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Originally Posted by FBinNY
(Post 15577264)
The key to getting reliable help on the forum, is to be able to describe the problem precisely. Otherwise it's like they say in the computer trade -- GIGO -- and we're just guessing.
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Originally Posted by kenji666
(Post 15577277)
This ^, plus we will make fun of you for being a noob. :)
Anyway, I doubt my knowledge of bikes could help describe the sounds it was making, so yes, I'll take it to my LBS. |
Originally Posted by cicatrize
(Post 15577441)
I hope that's a joke; I got a different first impression from these forums.
. BTW- there are plenty of good tutorials available on the internet, which you can search by topic, ie. how to adjust a front derailleur. Also many shops offer repair courses, from the basic fix a flat to all of the common repairs. While you're at the dealer,ask them if they offer this. If not check for a bicycle co-op, sometimes known as a bike kitchen in your town, since these teach courses, and also have work spaces where you can work on your own bike, with a mechanic available if you get to a roadblock. IMO, that's the best way to improve your skills. Lastly, update your profile to include where you live, so that folks may be able to give you specific local advice next time around. |
Since it as fine for the first few minutes, it's probably something your store mechanic needs to check out. They should be glad you brought it back to keep you happy. Those kind of problems with cables happen to the best of us.
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Originally Posted by FBinNY
(Post 15577478)
BTW- there are plenty of good tutorials available on the internet, which you can search by topic, ie. how to adjust a front derailleur. Also many shops offer repair courses, from the basic fix a flat to all of the common repairs. While you're at the dealer,ask them if they offer this. If not check for a bicycle co-op, sometimes known as a bike kitchen in your town, since these teach courses, and also have work spaces where you can work on your own bike, with a mechanic available if you get to a roadblock. IMO, that's the best way to improve your skills.
Lastly, update your profile to include where you live, so that folks may be able to give you specific local advice next time around. I'll update my profile as well. |
Originally Posted by cicatrize
(Post 15577202)
Excuse me in advance for the following. I am an inexperienced rider who just got his first "nice" bike and I don't know the terms very well, so hopefully I can explain it.
I just picked up my new Trek 7.2 FX today (they assembled it out of the box for me, so no test rides on it). I took it home and rode it around for a bit. After about ten minutes, I noticed that whenever I shifted into my 2nd gear on my (crankset?) front gears seemed to make a crunching noise as if they were in between gears. If I shift out (to 1st or 3rd) and back into 2nd, it will fix that problem. For this particular issue, maybe I'm shifting incorrectly...I don't know, but after it goes away, then it sounds like the chain is almost rubbing up against something. I looked down and I didn't see it rubbing or anything but it appeared as if the chain wasn't perfectly straight...like a very slight sway to left and right. Any ideas? :( Still there will be some continuing breaking in on all the systems as the riding adds up. Return to the shop and give them time to do the right follow up. Do this again after a month or two, EVEN if you don't think the bike needs it. Andy. |
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