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yes. they are very good, obviously very light - best part is the wide rim width. it allows you to run very low pressure and the tire remains stable. also adds volume to a tire. have not burped a tire on these rims, even at 21-23 psi.

i use em pretty much as race only and weight around 150 lbs. there is a weight limit and they are intended for racers basically.

good luck.
 

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Stans ZTR Race Wheel Flex?

How flexy are these wheels? At an advertised 1210 grams for the pair according to the Stans website they are incredibly light (lighter than my road wheels), and I would think that they might be so flexy that they would feel squirelly on the descents. As a frame of reference, I am a 150 lbs Sport XC racer that rides with a fairly light style but in rocky (Colorado) XC courses. I currently race on the new XTR 975 Scandium wheels and find those to be plenty stiff (laterally) for me. Historically, I have not been very sensitive to wheel flex even with very light weight builds, but I have never ridden a mountain wheelset even approaching this weight. Did the wheelset really weigh-out to 1210 grams as advertised? Maybe the 7000 series rim is unusually strong for its weight. How often do you have to true these? Have you had any reliability issues with the American Classic 225 rear hub? The reviews here on MTBR seriously question the reliability of these hubs and it is certainly a lot to pay for a wheelset. Would it be possible to use these also as everyday wheels for XC if you are using relatively high volume tires (Maxxis Monorail and Crossmark-rear) on them. I have other bikes for super rocky technical trailriding and would only use these wheels for XC. I tend to like to race what I ride regularly so the feel on race day is not real different. Sorry for so many questions but it is hard to find anyone who has ridden/raced these wheels yet. Any color on these wheels would be greatly appereciated. Thanks.
 

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notubes.com suggests rider weight limit of 170lbs so that should answer your question. If you're under that, XC purposes should be just fine. Putting these on an AM bike would be asking for trouble. You could also go into notubes' forums and there are posts that answer your question too.

in regards to the hubs, the older ac hubs had the problems everyone worried about. It has since been remedied. I as well as two of my buddies can attest to the the ac hubs being just fine.
 

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ABRider said:
How flexy are these wheels? At an advertised 1210 grams for the pair according to the Stans website they are incredibly light (lighter than my road wheels), and I would think that they might be so flexy that they would feel squirelly on the descents. As a frame of reference, I am a 150 lbs Sport XC racer that rides with a fairly light style but in rocky (Colorado) XC courses. I currently race on the new XTR 975 Scandium wheels and find those to be plenty stiff (laterally) for me. Historically, I have not been very sensitive to wheel flex even with very light weight builds, but I have never ridden a mountain wheelset even approaching this weight. Did the wheelset really weigh-out to 1210 grams as advertised? Maybe the 7000 series rim is unusually strong for its weight. How often do you have to true these? Have you had any reliability issues with the American Classic 225 rear hub? The reviews here on MTBR seriously question the reliability of these hubs and it is certainly a lot to pay for a wheelset. Would it be possible to use these also as everyday wheels for XC if you are using relatively high volume tires (Maxxis Monorail and Crossmark-rear) on them. I have other bikes for super rocky technical trailriding and would only use these wheels for XC. I tend to like to race what I ride regularly so the feel on race day is not real different. Sorry for so many questions but it is hard to find anyone who has ridden/raced these wheels yet. Any color on these wheels would be greatly appereciated. Thanks.
they are stiff enough for me, i can't tell any difference from 717s or crossmax sl. they really weigh 1210 grams.
mine are holding up fine. have not had to true them at all so far, probably 500 plus miles of trails. could probably use them for all around xc riding if you are under the weight limit.

high volume tires work great, even true 2.2 tires. the RACE rim is very wide and with some tires it gives the tire extra volume.

if you are really worried, just go with the Olympic rims, not as wide, but also very light and no need for rim strips like other rims out there. i think the same built is only 100 grams more and a lot less money.

they are good wheels. good luck.
 

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Thanks!

KevBikeMad and Protocol thanks for the great color. It sounds like these wheels would work great for me. I think wheels this light can totally transform the feel of a bike. I really appreciate the time you took to respond and I found both of your comments to be very useful. Thanks again.
 

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Been running mine for almost a year as my "every day" wheel set, just recently went to a set of the Stan's Olympics just for winter use.

They are still true, I weigh 145# and ride a lot of rocky nasty stuff. No bburps, no flats... nice. I guess if I get 3 years out of these I'll be very happy.

The American Clasic's are about the lightest hub out there. I think the rear is the one in question (freehub?) but not a problem on mine, I also think they did a re-design about a year ago?
 
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