jadocs

Hey all,

Just got a set of the Ksyrium Pro UST Disc wheels and used them for the first time on Saturday. It's been 16 years since I had a new set of wheels. My question concerns the rear hub and cassette. After every ride, I clean my chain and take off my rear wheel to floss the cassette. While flossing, the cassette popped off the rear hub as one unit. It looks like it was designed that way to make maintenance easier (ie get to the bearings etc)....but I wanted to check with you guys, Is this a normal? Do wheels made now days have this? I pushed the cassette (as a unit) back on and it seems to lock in place and is held together by the thru axle when mounted on the bike.

Thanks

noodle soup

They designed it that way, so that freehub bodies could be swapped without tools.

jadocs

Awesome, thanks buddy I appreciate it!

bruce19

Would love a review at some point.

jadocs

bruce19

jadocs

Hey Bruce,

Thanks for that. I can attest that it is in fact that easy to take the tire on/off and re inflate with a hand pump. It was actually harder getting my Conti clinchers off my DT Swiss wheels.

My first ride on the Ksyrium Pro's, I got a cut in the center of the tread (just my luck right?), anyway it did seal right up, but I took the tire off and patched it from the inside anyway. After watching that vid, I may give the 28mm a go.

GuitarBob

That is either supreme dedication or one definition of insanity!

garciawork

I don't really like Mavic wheels from a proprietary parts standpoint, but man its hard to argue against how well tubeless works... Accidentally messing up the tape while installing a tire is one of the most infuriating things I have experienced, doing away with that is pretty awesome. If I ever see some going for a reasonable price, I'll probably have to buy 'em.

DOS

Marcus_Ti

This should not happen. Something isn't assembled properly-either from the factory, or from your somewhat overzealous cleaning regime.

The wheel should stay assembled when not on the bike.

bruce19

My sense of it is that Mavic didn't invent anything, they just made tolerances between tire and rim very precise. That would indicate that wheels and tires might have to be matched but that other manufacturers can do it too. And, I'm guessing, there could be crosses between wheels and tires. Just guessing.

jadocs

Yes I am completely OCD when it comes to bike maintenance. I have a 16yr old bike that is essentially in brand new condition on the original chain (still within spec), not because it doesn't get ridden but because I do a quick clean/floss/wipe/relube after every ride. It never gets to the point where I need to degrease my components.

Don't get me wrong, the cassette didn't just fall off the free hub. I was flossing the biggest cog from the back while applying pressure towards the front. So you had forward pressure in addition to the cog turning. It completely locks into place. You just don't need tools to remove it. You would understand if you saw what I was trying to describe.

DOS

Campag4life

Does more harm than good pulling it apart that much FWIW.

jadocs

I use Whipperman Connex stainless chains. The quick link is designed to be taken apart by hand as many times as one wants without ill effect. That's the only thing that gets taken apart. Then it's simply running the chain through my hand using an old t-shirt to get the funk off. I floss the cassette on the wheel and wipe off the chainring. I'm really not that bad LOL

Campag4life

Personally, from a safety standpoint, I wouldn't repeatedly take apart 'any' chain master link...even those specially designed for it. Every time 'any' master link...non reusable or reusable is taken apart it weakens the detent that holds the plate in place. Catastrophic failure of a master link while out of the saddle is something I want to avoid on a bike. In fact, it is one of the reasons Campy has been steadfast in using a rivet to close their chains...no masterlink. Liability. Shimano same thing until recently. The new Cervelo I just bought with Shimano Ultegra chain has a rivet and no master link. You need a chain tool to take the chain apart.

I use KMC missing link master links in all my chains...the ones that are meant to be reused...but I do so VERY sparingly. If they have been apart 5 times, they are throw out. Not worth the risk.

In all my years and I am OCD about my bikes as well, I have never heard of anybody taking off the chain every ride.

I wish you well.

jadocs

Campag thanks....

I just picked up a set of 28mm Yksion Pro UST tires for $64 for the pair off eBay so I will be able to test out how they feel in comparison to the 25's I have on there now. The video posted above claims that the 28 has less rolling resistance (according to Mavic).

Campag4life

Would have to compare the tire specs but in general, the reason why people ride 25's is because they have less rolling resistance than 28's. 25's are also lighter and more aero. Reason for 28's is greater air volume and more compliant ride. They can be run at lower air pressure without strike through or pinch flatting.

But unless the roads are bumpy 25's are faster...unless there is a big disparity in tire construction.

noodle soup

have you ever used a Whipperman Connex quick link? They are unlike other designs, and there's no detent that holds the link together.

jadocs

It's the same tire, same specs just different size. Watch what Mavic says near the end of the video above. Both were tested using the same methods and the closed course they tested them on appear to be smooth tarmac.

This is true there is no detent

Campag4life

Not to my eye they aren't. Perhaps you see them differently.

noodle soup

if you have used a Whippermann Connex link, you would see the difference.

jadocs

Edit, Noodle and I posted at the same time

Campag4life

Not to argue...