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Race wheels: AGAIN(10 posts)

Race wheels: AGAINGreyhound
Nov 15, 2001 1:49 PM
I am still looking at buying some race wheels for the collegiate season, and have a while to play with ideas, but this is what I have so far:

Chris King hubs-velocity aerohead rims, dt revolution or dt ti mmc spokes (what do people think about lacing on kings? I know you arent supposed to radially lace, but...)

Nimble Spiders: 1350 advertised weight in prebuilt clincher for $400ish retail...

Mavic Ksyrium Sl's: If someone can convince me they are worth it...

Spinergy's new Xearo light: don't know much about these yet.

Any other suggestions or input on these possibilities is apreciated.
Zipp 303 or 404 clinchersmatt
Nov 15, 2001 2:09 PM
Fly weight clinchers and the ultimate in aero and strengh.
Race wheels.....go tubular.JS
Nov 15, 2001 3:17 PM
Why not? Lighter rims, lighter tire/tube combo, better ride and for racing who cares about flat changing.
Race wheels.....pick 2001 K's for discounted pricesticky
Nov 16, 2001 7:51 AM
Why not see if you can get some 2001 K's at a discounted price. Unless your a pro or top amatuer why not save a few bucks - I ve just got some for £299/$430!
re: Race wheels: AGAINpmf1
Nov 20, 2001 6:37 AM
Check out speedream.com. Dave makes a nice wheels set (aerolight) that is affordable ($500) and light (1435 grams/set). I recently got a pair and am happy with them
How much?gimondi
Nov 21, 2001 11:53 AM
You will not go wrong with the King/Aerohead combo, I don't know what you weigh, but avoid Ti spokes entirely unless you true/tension bi-weekly, and Revos are light but flimsy if your over 165 or so. You would be well served to look into Sapim CX-Ray, all the aero of an oval, the weight of a 14/15db and the highest fatigue strength in the industry, it's what Campy, Zipp, Dave Thomas at Speeddream and too many others to count seem to be using.

I would not spend my money on the Ksyriums or Ksyrium SL's, they aren't bad, but you pay for the hype and perception, we sold over 50 pair of K's last year with only 2 problems, but did not have pair under 1750gm, not the 1600 they claim, and did not have a clincher pair under 1820gm. For the money you can do so much better, not to mention K's are actually less aero than a traditional wheel with ovalized spokes (talk to John Cobb). Speeddreams will be 1/2-2/3lb lighter and nearly half the price.

As for Nimble, they are out of business for trying to sell products as poorly thought out and excecuted as the Spider and Fly. Almost too bad, though, you might have been able to get in on one of the class action suits..

Hed is cheaper but his stuff scares me worse than Nimble, we've seen more of that come apart over the last few years than I care to mention. Hed3 is pretty durable, but front wheel weighs more than pair of 303's. However as race only wheels might last a season or two, and are priced similar to K's.

The Xaero lights ride incredibly well, but again talk to John Cobb, they are almost twice as bad as 32sp trad wheels aerodynamically. They say at Ironman athletes like Zieger could expect to expend 800-1000 additional calories with those wheels over say 404's or Heds, no wonder she dropped out.

Talk to Speeddream, he will not do you wrong. If it were my personally and I had the money I would do Zipp 303 clinchers, 1360gms. 40mm deep rims, ovalized spokes and the most beautiful hubs you've ever seen, yes even moreso than the Kings, I have a pair here in the shop in front of me and I am lusting hard. But they aren't cheap. They will save 1lb over Ksyriums but are 30% more $. On a budget, call speeddream, colorado cyclist, or Excell. Get a good sturdy rim like an aerohead and pick excellent spokes in no fewer than 24/28 or 28/28, the hub is probably the least important from a performance stand point, but it really depends on your long term outlook.
correction on K weight!sticky
Nov 23, 2001 6:47 AM
Small correction - I have just weighed my 2001 K's (clincher)- the front was 724 and the rear 930. This is just over 50 grams over the claimed weight. The hubs are super smooth and the wheels look good.

If road racing, the aero effect is not important, and at a discounted price these have to be an option. At full price - I agree you can get lighter for less. If I was time trialling the I would go for something far more aero - disc plus deep section wheel (303, 404, or shamal).
Wrong about aerogimondi
Nov 25, 2001 12:18 PM
Numerous studies have been commissioned over the past 4 or 5 years, including one by Rabobank to be carried out by John Cobb and some physiology guys at Texas A&M. The test was paid for as far as I know by the team, and the data is not public record, I don't think. But they determined according to John Cobb that an average team rider at the Tour would save in excess of 600 calories per day on aero wheels. This promptly led to those guys riding their sponsor's aero wheels pretty much continuously. This is the same reason Postal rides those boat anchor Carbones on all the non-mountain stages. Just think, 600+ calories including sitting in the pack and whatever else. If you are planning an attack at all they are more than worth it, and even if you sit in for the sprint, I doubt you would turn down the opportunity to be a couple hundred calories more rested.

For this same reason you shouldn't train on your aero wheels. Why not burn a few hundred calories more?

I agree that weight is important, but I would bet on all but the hilliest courses aero is more important by a substantial amount.

Go look at John Cobb's stuff, or go to analyticcycling.com and play with his weight/aero/power calculator, pretty interesting stuff.
or just plain wrongfelice
Nov 25, 2001 12:40 PM
if you're sitting in all day the energy savings due to aero is much less... did they do the test figuring in that the rider is sitting in the group or alone on a break? big difference
re: Race wheels: AGAINcyclepath
Nov 23, 2001 6:50 PM
Most definitly look at the Velomax acsent comps. Good design strong and light. www.velomax.com