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Old 05-01-08, 08:13 PM   #1
gv1256
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gear slipping

i have a 19 year old bike which i have been riding for a few months and when i apply a lot of torque ( power up hills) in a low gear it slips out and moves to a higher gear. Any ideas of what it could be? thanks
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Old 05-02-08, 08:10 AM   #2
bikeman715
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check your rear dérailleur adjustment . sound like the dérailleur is tired and need replacing .
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Old 05-02-08, 09:07 AM   #3
Lambo
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Could also be the cable tension is too low.
Check Sheldon Brown's site about ghost shifting. As I recall, he covers the phenomenon pretty well.
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Old 05-02-08, 11:06 AM   #4
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If the shifters are indexed try adjusting the shift cable tension.
If the shifters are friction then try adding friction at the shifter.

Al
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Old 05-02-08, 12:24 PM   #5
Bill Kapaun
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Also check for stiff links in the chain
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