Longevity of various parts?

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Jcgill
Posts: 50
Joined: Sat Apr 25, 2015 11:03 pm

by Jcgill

Hello, i was wondering for all you hardcore high mileage riders what kind of lifespan you see from various parts other than the normal wearable parts.

To make it easy we will say the group is Shimano 6700/6800/7900/9000
Parts like: Shifters, RD, FD, etc. assuming there are no events that break the parts.

Basically, If you built up a road bike using a new group listed above how many miles would you expect to get before you had to completely replace the whole group due to loss of functions? (Not because you want to replace it with the latest and greatest new group that was released)


Thank you,
Jon

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zappafile123
Posts: 655
Joined: Sun Jun 01, 2014 8:24 am

by zappafile123

I remember reading ages ago that dura-ace is rated to last about 80-90,000km - this figure could be wrong. I have put about 16,000km on my 9000 group and it functions more or less as new. The only real difference is shifting doesnt feel as crisp as it once did - there is less of a distinct big 'click' with gear changes.
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Ozrider
Posts: 1018
Joined: Sat Nov 20, 2010 6:06 am
Location: Perth, Western Australia

by Ozrider

Longevity depends on so many factors
- how well you maintain your bike
- how much shifting you do
- how much you ride in the rain
- are roads where you live salted in winter
- how often and how well you clean your bike
- any incidental damage in transit / dropped or knocked over
- luck


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Ozrider - Western Australia
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Briscoelab
Posts: 1513
Joined: Thu Jan 26, 2006 6:01 pm

by Briscoelab

If you're willing to replace things like chain rings and jockey wheels.... you can get a lot of life out of the group. As in, you'll probably sell it and get something new before you ever reach the end of the groups lifespan.

sawyer
Posts: 4485
Joined: Fri Dec 15, 2006 7:45 pm
Location: Natovi Landing

by sawyer

Yes, the potential mileage is huge though obviously chain, cassette, cables and pads will need replaced more often

Beyond that the chainrings and jockey wheels eventually, but then the rest can go on and on There are not many cases of people wearing out a front derailleur or a pair of calipers
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