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Help a total bike dummy fix her bike!

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How to Adjust Your Front Derailleur How to Adjust Your Front Derailleur
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erinelizabeth882 Offline
New Member


Posts: 2
Joined: Jul 2014
Post: #1
Help a total bike dummy fix her bike!
Hello!

I have a second hand, 18-speed, index shifting bike that I use for getting back and forth to school and running some errands. I've been having trouble shifting gears on it. The right gear shifter works fine, but the left one is struggling. When I twist the shifter into a new gear, the actual gear doesn't change. It will however randomly clunk into a new gear when I'm riding and haven't recently changed gears.

I've attached a photo showing the back gears. Let me know if something different would be more helpful!

I really now nothing about bikes except for how to ride mine around town, so any gentle advice with lots of layman's terms would be greatly appreciated.

Thank you!!
Erin


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Jul 5, 2014 03:54 PM
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nfmisso Offline
Veteran Member

San Jose, CA
Posts: 2,343
Joined: Jul 2010
Post: #2
RE: Help a total bike dummy fix her bike!
Is this a mirror image? I have not seen a derailleur equipped bicycle with the chain on the left side.

The problem sounds like the shifter cable need adjustment. Typically there is a barrel adjuster on the shifter to take care of this. If there is not enough travel left, it will require screwing the adjuster all the way in, then pulling a bit of cable thru on the front derailleur.

See: How to Adjust Your Front Derailleur above.

Nigel
Jul 5, 2014 10:32 PM
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DaveM Offline
Veteran Member


Posts: 1,400
Joined: Aug 2008
Post: #3
RE: Help a total bike dummy fix her bike!
A little hard to see in the photo. But the front derailleur either looks bent to me or maybe it is the wrong style for this bike. Either might explain the shifting problems. Was it working ok before and then got bad? Or was it always bad? Any crashes or impacts? A better phone of the crank area would help.
Jul 6, 2014 03:59 AM
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erinelizabeth882 Offline
New Member


Posts: 2
Joined: Jul 2014
Post: #4
RE: Help a total bike dummy fix her bike!
I will try to get a better photo today. it's actually my boyfriend's that I am using right now. It's been away in storage since November and I'm just using it now. I asked him and it sounds like there had been some problems with the gear shifting before. I'm actually planning on getting my own bike when finances allow, but until then, thought I'd try to make this one work for me.
Jul 6, 2014 12:26 PM
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cny-man Offline
Senior Member

Syracuse, NY
Posts: 425
Joined: Jul 2012
Post: #5
RE: Help a total bike dummy fix her bike!
I agree that the front derailleur does seem to not be correctly aligned, but you could have more than one problem. If the derailleur shifting late is when you are going down to a smaller chainring (front gears, rotating the shifter forward) then the cable is not moving smoothly due to lack of lubrication, rust or a kink. If you have a bike co-op locally they can probably help.
Jul 6, 2014 03:23 PM
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