That's it, I'm out.
They say that Fignon's decision not to wear a helmet in the final TT cost him the Tour, but that's got little to do with someone running an O-Cup TT on the outskirts of St. Marys one Sunday afternoon.
Ryder Hesjedal
- Thread starter invictus43
- Start date
That's it, I'm out.
They say that Fignon's decision not to wear a helmet in the final TT cost him the Tour, but that's got little to do with someone running an O-Cup TT on the outskirts of St. Marys one Sunday afternoon.
invictus43
Well-known member
Pffftt..tell me about it..the 175's send my stubby legs into my sagging belly to horrible effect...
I blame the pony tail...
Hey whats the solid rim on some tyres for, aerodynamics? One solid rim or both solid, Ive seen it and never knew what its for. Is it true that some of these bikes can go upwards of 7-8 g's in price? Is it possible to build your own?
Yes, full carbon disc for maximum aerodynamics. You would not want to use it on a windy day though. 40mm to 80mm peaks are more common. A full disc is usually just used on the rear with a 40-80mm peak front wheel.
$7-8G is easy. There was a Scott Plasma 3 with ZIPP 808s at the March Bicycle show for $9999.
invictus43
Well-known member
I think those are "cheap" carbon aero rims..they're a bit heavy. BUT, with a 60mm profile depth, they're probably pretty aero. I wouldn't use them every day..build up some Mavic cxp33's for everyday use..or some plain old Open Pro's..but for that price, even if you only use them for competitions or getting a time, I think they're not bad. Heavier is really only a bad thing on rims if you have to speed up and slow down a lot..like climbing or sprinting out of corners in a crit. For TT, heavier really isn't an issue, especially since most TT's here are flat.
As always with carbon stuff, inspect the spoke holes and valve stem area for cracking. Carbon is fragile if it's damaged much.
invictus43
Well-known member
Yeah, I've ridden a bike with disc front and back..the back is not bad..the front caused problems in cross-winds. I was comfortable with the rear though. I've read before that a tri-spoke front like the Hed H3 Deep front with a disc rear is the most aero. I've only ridden a tri-spoke front once and it was just a customer bike test-ride.
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Oddly enough I saw a guy out riding (slowly i might add) today on a Cervelo tri bike with a Hed disc and Hed tri spoke front.
invictus43
Well-known member
Well, they make no sense for training. Like, seriously none. As soon as you said Cervelo and Hed..I knew where this was going..
Durability is the important thing..I built mostly 2 or 3x front wheels with 28 or 32 spokes, 1.5mm/1.8mm and 32 spoke rears, 3x on the casette and 2 or 3x on the non-casette 1.8/2.0. Alloy nipples were nice for weight, but not for training wheels. Bladed spokes were ok too. Mavic Open Pro's or CXP33's..they were really durable, fairly quick rims. Never had a problem with them. Some of my guys had seasons on those wheels. Then they'd throw on the Mavic Cosmic's or the disc/tri wheels for competitions. But I only had 2 or 3 people riding at that level.. Nowadays, weekend warriors have disc wheels. Ugh..
Well, they make no sense for training. Like, seriously none. As soon as you said Cervelo and Hed..I knew where this was going..
Thanks for the info.
At the moment I have Mavic Cosmic Elites on my Guru. No carbon but they are peaked and have bladed spokes. Do you think the 'upgrade' to the Flash Points would be worthwhile? Or just stick with the Mavics?
Also, looking at those FPs they are not a full carbon wheel. Being a carbon peak on top of an aluminum rim I would think they'd be more durable. Hopefully something I could put on and leave on. Would you still reccomend only using them on race day? Normally Id ride about 1000km/yr on my tri bike. The rest is spin or mountain.
Depends on how many races you do. Keep the Cosmics for every day/training and get a good full carbon rim wheel with the bonded Al braking surfaces for race day.
After all, it's only money, and there's no discounting the placebo effect.
There's a Canadian Tri forum with a FS section. I'd be looking there for the cast offs from the rich, Wheel of the Month Club guys there.
After all, it's only money, and there's no discounting the placebo effect.
There's a Canadian Tri forum with a FS section. I'd be looking there for the cast offs from the rich, Wheel of the Month Club guys there.
