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Mavic Wheels - what size? 27? 700?

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Mavic Wheels - what size? 27? 700?

Old 04-06-20, 10:36 PM
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hobkirk
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Mavic Wheels - what size? 27? 700?

I bought a pair of Mavic "on special" at Belmont Wheelworks - about $350 w/ tires, IIRC. . I recently bought a new tire - Conti 5000 700x25. It was VERY, VERY hard to mount. I've done it twice - once in my office and once on the side of the road. Both times it took me about 30 minutes to mount the tire, working the levers in a myriad of configurations, trying to find the most effective distance between levers and levering 3 or 4 simultaneously. One lever is a yellow Pedro's.

I remember reading that 700 and 27" tires are very similar, but are not interchangeable. So I wonder if that's what's going on?

So what size are my wheels? I am not even sure what wheels they are:
  • The rim is labeled Mavic Aksium Elite
  • 180 degrees opposite, it's labeled Kysyrium Equipe
  • As far as I can tell from the Mavic site, those are two different wheels.
  • And there's a small decal = ALU S6000 - 622x1c (it's very hard to read, but I think that's correct)
I've always used Conti 4000's - is this a 5000 tire problem?

Next time, I expect I will be forced to use two metal screwdrivers, which is obviously courting disaster. I weigh 230#, my tires take lots of abuse. I have ridden 30K miles, so I've fixed a lot of flats.

Thank you for reading and your consideration.
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Old 04-06-20, 10:43 PM
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A 27" tire would blow off your rim. The BSD is 630mm vs 622mm.
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Old 04-07-20, 02:25 AM
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I had some wheels like that once. I bought myself some metal tyre levers specially for those wheels as I kept breaking the plastic ones.

Modern Mavic Ksyrium and Aksium rims are UST standard - tubeless compatible. There may be something about that which is making it harder to mount the tyres - perhaps they don't have such a deep gulley in the centre?
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Old 04-07-20, 04:38 AM
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Mounting tires on tubeless rims requires you to push the bead of the tire into the center channel in order for the tire to fit over the edge of the rim. With MTB tires, it is fairly easy because the tires and rims are wider and the bead tends to fall into the center channel on its own. With road tires, the sidewalls are stiffer and the bead needs to be pushed into the center channel in order to get enough slack to mount the tire. There are several illustrations of this on this page. https://www.pinkbike.com/news/To-The...ires-2013.html
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Old 04-07-20, 04:53 AM
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If you are using thick rim tape like VELOX, you could try going to something like Continental Easy Tape, or filament-reinforced packing tape, or Kapton. The thinner tape will give more room to get the bead down in the rim.
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Old 04-07-20, 07:54 AM
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Originally Posted by hobkirk View Post
  • The rim is labeled Mavic Aksium Elite
  • 180 degrees opposite, it's labeled Kysyrium Equipe
  • As far as I can tell from the Mavic site, those are two different wheels.
  • And there's a small decal = ALU S6000 - 622x1c (it's very hard to read, but I think that's correct)
The "622" means these are 700c wheels so that's certain. As to the two model names I think Aksium is the name Mavic uses for the rims and Kysyrim is their name for the complete wheel set.

As to mounting difficulty, the ultimate tire mounting tool is the KoolStop Tire Bead Jack. Get one and your difficulties are over.
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Old 04-07-20, 09:04 AM
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Originally Posted by HillRider View Post
As to mounting difficulty, the ultimate tire mounting tool is the KoolStop Tire Bead Jack. Get one and your difficulties are over.
Don't leave home without it!
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Old 04-07-20, 09:10 AM
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Conti GP5000s are well known to be very hard to mount tires.
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Old 04-07-20, 09:30 AM
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Originally Posted by dsbrantjr View Post
don't leave home without it!
amen!
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Old 04-07-20, 10:37 AM
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Originally Posted by dsbrantjr View Post
If you are using thick rim tape like VELOX, you could try going to something like Continental Easy Tape, or filament-reinforced packing tape, or Kapton. The thinner tape will give more room to get the bead down in the rim.
I think you'll find that they don't need rim tape at all. Certainly my Ksyrium rims didn't.
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