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Which? Vector Comps vs 535's, Xero XR-1 Mavic Cosmos(3 posts)

Which? Vector Comps vs 535's, Xero XR-1 Mavic Cosmosdave woof
Jan 21, 2002 6:45 PM
Hi all.

I have a question about different wheelsets. To start, I'm 170lbs, give or take 2 lbs. I ride about 200 miles a week, not racing but fast training. Also have a favorite climb
(South Mountain - Phoenix) that is crappy as heck. Road is badly pitted, potholes, and shakes the crap out of me on the way down.

I'd like to upgrade my wheels to something lighter - I like the paired spoke wheelsets. (I have CXP21's with Ultegra hubs, 32 straight gauge spokes).

I'm looking at Rolf Vector Comps, Shimano 535's, Xero XR-1 or lastly, Mavic Cosmos.

Supergo is having a sale on Vector Comps and Xeros, $249 and $214 respectively. I'm pretty sure the 535's go for less than $170 now from the U.K. Sestriers are nice but still a bit costly for me, still $400 or so.

Can anyone give feedback on these wheelsets - i.e. how much you weigh, if they come out of true often, also if you can true them yourself (I have built my own wheels, truing's not a problem for me) and if they need special tools for truing or repacking hubs.

One of the problems I found out is that if the paired-spoke wheel comes out of true near the spoke, it can be fixed. but if the run-out is between spoke pairs, you may be sol.
Any comments on this?

Any questions, just ask - I check in 2-3 times a day.

Dave
dont have experience with allnaff geezer
Jan 21, 2002 9:50 PM
but if weight is your goal none of the above mentioned will be as light or as durable/easy to maintain yourself as a regular wheelset in a traditional design.

pay a visit to joe young's site and you may be quite surprised.

of all the one's mentioned i would argue that the cosmos' would feel the best wheel to climb on as the perimeter weight should be lower than the other three. they are good quality wheels and at least they come with a spoke tool, wheel bags and rims strips. hub service is pretty easy.

your cxp's weigh in around 480 grams - a noticeable difference would be felt with a rim like the velocity aerohead (currently $20 for 28 hole at bike nashbar - if you weigh up to 165 pounds then i think a good wheel build would make them a great option), or campy montreal's, fir's (which are an oft used brand in europe) and of course mavic open pro's who have the most fans and appraisals and dare i say marketing department.

excel sports make a great wheel with dura-ace hubs, a mix of dt's and open pro's for just over $300 shipped.
http://www.excelsports.com/item.asp?major=1&minor=24&description=Cirrus+Wheelset&vendorCode=EXCEL

such a wheelset would have more general riding appeal as anyone who discounts the joy of accelerating and climbing efficiently really isn't much of a red-blooded cyclist in my book.

you can go with lighter but more expensive hubs but hub weight isn't as crucial for climbing and acceleration. perimeter weight is.

joe young can do a similar thing for you but will tailor a wheel combo around you specifically. if anyone can build an all round set of hot wheels he can.

a good reliable tube that is reasonably light weight is around 70-75 grams, and a set of veloflex pave's or good tires around 200 grams can also make a difference.

the low spoke wheels are good but none of them really offer a signicant (read minutes) aero advantage and all are a pain in the ass if you have spoke or truing problems and want to fix them yourself. that is if you have bad wheel luck - if your pretty good on your wheels then they mostly wont be a problem. take into account that with fewer spokes you may not be able to limp home with a failure on a low spoke wheel count. ride confort is generaly better with porportionate increase in spokes.

with regards to aero-ness a better position (elbows in , head low etc etc) will make far more of an impact than the best ($$$) aero wheels. a light traditonal wheelset with a correctly set-up set of clip-ons may be the best compromise time wise.

the reason that all but the cosmos' are discounted is that nobody wants them for various reasons. also if you can stretch to a pair of mavic K's then it would be worthwhile in terms of all round ability and reliabilty as a combination.

of course you better than anyone else know what you need. my comments are observations and and are too generalised to be taken for fact as i dont know your weight, experience and roads that you ride on. most of my opinions are weighing in with price being a large determining factor. sure for $800+ you start getting the best of both worlds but this isnt your criteria.

i should also mention to be fair that i ride a rolf pro front and campy shamal rear. for my purposes and riding style it works for me. i like (meaning can tolerate to pay for) my tubulars and dont do any service of my own. i am happy but sometimes i pine for the pair of light sprint wheels that i had before. my rides are almost flat with a splattering of gentle hills. my rides are shortish and faster paced and i am happy using torque rather than finesse. but with the different experiences (including current) with low spoke wheels my next will be more traditional in design unless i can figure out a way to get zipp 303's for $300 odd dollars.

most invaluable advice: find a top wheelbuilder, preferably in your area, tell him/her how much you can spend and where and how you ride. you will probably go more miles on these than any other. it may cost you more but will save you more in the long run.
re: Which? Vector Comps vs 535's, Xero XR-1 Mavic CosmosRui
Jan 26, 2002 1:23 PM
I have bought a pair of Shi.535
they seem very fast,and smooth-great look
the best investment is the front wheel. if you have a nice budget buy the 535 front wheel and ultegra rear.
the great difference is the rear hub.
if you want fast wheels I think it's a good choice.
many people says they are hard to change tires, but it looks that the problems are with tires, so don't try any aero rims with Axial Pro. remember also that you may have problems with aero rims when you face crosswinds.
forgeting wath I mencioned, I love them.
I am using them with aluminum frame, carbon wishbone seatstays, and the combination is great.