My Mavic Ksyrium SL's have died
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My Mavic Ksyrium SL's have died
Postby azzurribike » Thu Jul 04, 2013 2:53 pm
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Re: My Mavic Ksyrium SL's have died
Postby thearthurdog » Thu Jul 04, 2013 4:40 pm
I would not be happy with 16 000 out of a set of wheels.
Were these wheels just used for training? What quality roads? Do you want a new set for the same job / purpose?
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Re: My Mavic Ksyrium SL's have died
Postby rustychisel » Thu Jul 04, 2013 6:04 pm
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Re: My Mavic Ksyrium SL's have died
Postby Tim » Thu Jul 04, 2013 6:20 pm
My Shimano RS80 C24's are up to about 15,000km's with hopefully at least another 5000 left in them. Not too flash on the durability front either but I ride less than half the annual distances I used to.
The RS80's have however been trouble free and still run true without any need for adjustment or maintenance.
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Re: My Mavic Ksyrium SL's have died
Postby arkle » Thu Jul 04, 2013 6:54 pm
arkle
instagram: @stevehargreavesartwork
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Re: My Mavic Ksyrium SL's have died
Postby Tim » Thu Jul 04, 2013 7:06 pm
The brake tracks wear out.arkle wrote:How do wheels even wear out?
As I am discovering with modern wheels the braking surface seems to wear out well before worn bearings become a problem.
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Re: My Mavic Ksyrium SL's have died
Postby greyhoundtom » Thu Jul 04, 2013 7:34 pm
Stop leaning on the brakes in every perceived emergency ........ learn to dodge.Tim wrote:The brake tracks wear out.arkle wrote:How do wheels even wear out?
As I am discovering with modern wheels the braking surface seems to wear out well before worn bearings become a problem.
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Re: My Mavic Ksyrium SL's have died
Postby singlespeedscott » Thu Jul 04, 2013 7:36 pm
That's because modern rims have machined sidewalls that remove material from an area that gets the majority of wear.Tim wrote:The brake tracks wear out.arkle wrote:How do wheels even wear out?
As I am discovering with modern wheels the braking surface seems to wear out well before worn bearings become a problem.
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Re: My Mavic Ksyrium SL's have died
Postby arkle » Thu Jul 04, 2013 7:48 pm
What happens then? The brake pads wear the metal wheels away and holes start appearing in the rims?Tim wrote:The brake tracks wear out.arkle wrote:How do wheels even wear out?
As I am discovering with modern wheels the braking surface seems to wear out well before worn bearings become a problem.
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Re: My Mavic Ksyrium SL's have died
Postby ironhanglider » Thu Jul 04, 2013 8:29 pm
@Timarkle wrote:What happens then? The brake pads wear the metal wheels away and holes start appearing in the rims?Tim wrote:The brake tracks wear out.arkle wrote:How do wheels even wear out?
As I am discovering with modern wheels the braking surface seems to wear out well before worn bearings become a problem.
arkle
That has always been the case with well maintained hubs, it is just that better-sealed hubs mean that people can ignore them for longer.
@arkle
That is pretty much the case but bear in mind the the rim is part of the pressure vessel that keeps the tube contained. A hole developing in the rim can allow the tube to force it's way through which will get cut on a jagged edge. If the wear is more even, then you might find that a whole segment of the sidewall will come away at one time in explosive decompression. Obviously there is never a good time for this to happen. Sometimes the failure is slower and you can see the rim start to bulge outwards beforehand.
http://ride-or-pie.blogspot.com.au/2012 ... kness.html
Cheers,
Cameron
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Re: My Mavic Ksyrium SL's have died
Postby Tim » Thu Jul 04, 2013 9:07 pm
Sitting a steel ruler across the top of the brake track has (very pleasingly) revealed an almost imperceptible amount of concave wear to the braking surface.
At this rate I think another 15,000km's should be possible. These wheels have a wear indicator indent that is still at least 1mm deep.
I fitted Koolstop Black pads when the wheels were fairly new. It appears these pads really are "rim friendly" as the blurb stated, not just marketing hype.
I hardly ever ride these wheels in the rain which helps explain the low wear rate but it also confirms my high regard for the RS80's.
The hubs have been opened up once (cup and cones, not cartridge) and regreased at about 10,000km's but I don't really think it was necessary. The grease was clean and there was no bearing play in the hubs. The labyrinth seals are very effective.
Good wheels IMO.
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Re: My Mavic Ksyrium SL's have died
Postby fingy » Thu Jul 04, 2013 9:24 pm
still true roll fast and ~1400g, yet to put a spanner on them.
May be pricier than SL's though, don't know what they cost.
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Re: My Mavic Ksyrium SL's have died
Postby BianchiCam » Thu Jul 04, 2013 9:33 pm
azzurribike wrote: Well worn out really, 16000+kms very happy. So it's been a while since I have considered wheels and although thoroughly satisfied with what I had would be interested to know what forumites suggest as replacements.
Round ones
Hope this helps.
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Re: My Mavic Ksyrium SL's have died
Postby toolonglegs » Mon Jul 08, 2013 9:27 pm
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Re: My Mavic Ksyrium SL's have died
Postby jimsheedy » Mon Jul 08, 2013 9:44 pm
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Re: My Mavic Ksyrium SL's have died
Postby sogood » Mon Jul 08, 2013 10:07 pm
RK wrote:And that is Wikipedia - I can write my own definition.
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Re: My Mavic Ksyrium SL's have died
Postby jimsheedy » Mon Jul 08, 2013 10:13 pm
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Re: My Mavic Ksyrium SL's have died
Postby singlespeedscott » Mon Jul 08, 2013 10:23 pm
Just do what my mate told me early on when racing MTB (back in the days of cantilevers) "stay off the brakes and nail the corners"
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Re: My Mavic Ksyrium SL's have died
Postby toolonglegs » Mon Jul 08, 2013 10:47 pm
I wish ... When racing at 0C on the side of a hill in thick slop on 30mm wide tyres ... Even having your brakes on hard and the wheels locking up hardly slows you down! Lolsinglespeedscott wrote:Just do what my mate told me early on when racing MTB (back in the days of cantilevers) "stay off the brakes and nail the corners"
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Re: My Mavic Ksyrium SL's have died
Postby rustychisel » Mon Jul 08, 2013 11:55 pm
Not necessarily. Here's a thread I prepared earlier.jimsheedy wrote:When the nylon bush wears out allowing one of the pawls to pop out and jam in the hub gouging a groove half way around in the process, the wheel is dead, died, nada, kaput.
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