suburbanjim66

i searched the forum but didnt see anything on this topic - pls forgive me if I missed something and this ends up being a repost....

Bought a set of R-Sys wheels about 500 miles ago. My front hub started making this strange noise and the bearing suddenly began loosening itself inside the forks while i was riding (turning counter-clockwise as if you were adjusting the hub with that tool Mavic provides). By the time I noticed something was up, the hub had about 1/8" of play in the forks vs. where it started.

Has anybody else heard of the R-Sys having some issues?

thanks - Jim

botto 

take them back.

suburbanjim66

Thanks. I was able to figure out that part on my own.

Psimet2001 

+1 - return them. I heard a story of someone having all of their nifty carbon spoke broken out during a love tap on a ride, but nothing about the bearings. Should be a fluke.



SHOULD be...

botto 

then why waste your, and our time with your post?

merlinextraligh

particularly after you look at this.

https://bikeforums.net/showthread.php?t=391335

Surferbruce

ease up yo.
the guy just wants to know if anyone else has had the same problem.

BikeWNC

A guy at our local lbs had a similar problem with his r-sys front wheel. They got it sorted out though and it hasn't happened again.

bdcheung

That doesn't answer is question.

umd

I had a problem with the front hub on my R-SYS. When I took it apart, I could see that the compression ring inside was loose, and moving around as the wheel turned. As a consequence, the spokes would hammer the ring as they were loaded, making the noise. I don't believe I ever had any side-to-side play though. The noise was annoying, but then I broke some spokes and sent it back. The charged $60 for the spokes and fixed the hub for no charge.

whitemax

The R-sys wheels seem grossly overpriced relative to what you get for a regular Kysyrium wheel. I believe I read somewhere that Mavic is going to ditch the carbon spokes for some other mystery material on this model.

umd

Someone locally on a ride had the front skewer of the person behind go into her wheel and shatter all of the spokes. She had the wheel rebuilt but its never been the same since.

merckx89

They had that problem with most of the first generation wheels. All the people that got them as beta testers had the same thing happen to them. Mavic knows about and shouldn't have a problem with a warranty.

ravenmore

The hub problem sux but to me these wheels are dangerous as when one spoke goes it can cause all of them to shatter. There's the crash post in the racing forum at Pace Bend, TX. Grahm Watson also has eerily similar pics of a rider in the Tour Down Under crashing with shattered spokes. This is a bad wheel design in my opinion (though I'm no engineer) and I think its downright dangerous.

dekindy

https://testrider.com/fly.aspx?layout=player&video=3
good video review.

The comments about carbon spokes would be enough for me to steer clear of them. I agree with ravenmore's design and safety comments. What business does anybody have riding such dangerous wheels, especially recreational cyclists.

They also talk about the wind resistance created by the massive carbon spokes.

wanders

Don't they also use carbon spokes for charcoal drawings?

umd

It doesn't help the OP, but for anyone else looking through this thread thinking of buying these wheels, let me just say that I would not buy them again. I'm not going to ditch the ones that I have, but I'm just glad that I didn't pay anywhere near full price for them...

bdcheung

But Bicycling Magazine and W*I*R*E*D Magazine speak very highly of them... you must have gotten a lemon.

botto 

i always preferred compressed.

aloysius

CF spokes laced to a shallow rim -- what a great idea. I wonder why you don't see this sort of wheel design more often?

fix

Just curious, how does one go about truing the R-Sys?

ravenmore

Carbon spokes can be done. Both Topolino and Lightweight are doing them and have been for years. Of course both blend in kevlar I think. Topolino's design is especially unusual as the spokes don't attach/terminate at the hub. They pass through it and terminate at the other side of the rim. Mavic's carbon spokes were a bad idea though.

ravenmore

Here's a pic of some Topolino AC29's I had a while back. THIS is how you do carbon spokes:

spessx

There was an ugly crash at Pace Bend Park this last weekend due to what looks like an R-Sys front wheel failing at 40+mph. I would get rid of these quick.

-s

briscoelab

Lightweight wheels no longer use the Kevlar. But, with their new carbon layup, they are stiffer and stronger without it.