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Old 08-09-05, 03:58 AM   #1
Cyclepath
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Any rules of thumb as to when various component should be replaced? I just switched out the RX100 rear derail on my 91 Peugeot Success, not because of any specific problem but because i figured performance could be improved after 14 years.

The smoothness & crispness of shifting of the new 105 derail really surprised me. Any other parts that might well be replaced? (crank was replaced for a triple about 6 years ago). Stock rims were replaced with Mavic Reflex SUP after a collision that also led to replacing the fork with a Sakae Litage FX.

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Old 08-09-05, 07:42 AM   #2
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Originally Posted by Cyclepath
Any rules of thumb as to when various component should be replaced? I just switched out the RX100 rear derail on my 91 Peugeot Success, not because of any specific problem but because i figured performance could be improved after 14 years.

The smoothness & crispness of shifting of the new 105 derail really surprised me. Any other parts that might well be replaced? (crank was replaced for a triple about 6 years ago). Stock rims were replaced with Mavic Reflex SUP after a collision that also led to replacing the fork with a Sakae Litage FX.
If it ain't broke, don't fix it, unless you like making the marketing depts happy Well... On the other hand, if you have a strong suspicion that something can be improved (like that derailer), may as well go for it.

The only part that I replace REGULARLY is the chain. I replace it whenever it has elongated 1/2%, which greatly increases the life of the cassette and chainrings.
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Old 08-09-05, 07:50 AM   #3
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Thanks. I think any moving part that sees hard service is due for a replacement/upgrade after 10 years or less. I'm getting a front derail next. The original Weinmann wheels never stayed true for long but the Mavics hardly ever need trued.

Old parts may still work but a crisp new component or two can be like having a new bike only without the expense. Save the old parts to sell off when they become vintage.
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Old 08-09-05, 07:56 AM   #4
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Any rules of thumb as to when various component should be replaced?

I upgrade when "I just gotta!".
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