Discussion
Nick
Thks for the quick reply. My problem is the planet-x (i've already got a Planet X bike) aren't built for my weight (104kgs, (on a 6' 5 1/2" frame)) in race conditions, and I don't want to damage the wheels! I've currently got 36h 3x lacing on open pro rims laced on to DA hubs, and they're bomb proof, but want someything quicker to race on.
Most of the tests out there (wind tunnel based, etc) show that a lot of the cheaper supposed aero rims aren't much more aero than a std rim, so aren't worth bothering with!
Thks for the quick reply. My problem is the planet-x (i've already got a Planet X bike) aren't built for my weight (104kgs, (on a 6' 5 1/2" frame)) in race conditions, and I don't want to damage the wheels! I've currently got 36h 3x lacing on open pro rims laced on to DA hubs, and they're bomb proof, but want someything quicker to race on.
Most of the tests out there (wind tunnel based, etc) show that a lot of the cheaper supposed aero rims aren't much more aero than a std rim, so aren't worth bothering with!
I thought I was stretching it, and I'm 'only' 95kg...
Mind you I don't develop enough power to challenge the integrity of my P-X 50mm wheels, although I am careful to keep them away from big holes in the road. Fronts are 20H and rears 24H, same as the Ksyriums I train on.
I reckon you're looking at a custom build again, so you have confidence in them, but starting with a better rim - with Zipps you'll be spending money on hubs & spokes that won't be doing anything that DA doesn't do, so put the cash into the rims instead?
Have you got anything against tri/quad spokes?
Mind you I don't develop enough power to challenge the integrity of my P-X 50mm wheels, although I am careful to keep them away from big holes in the road. Fronts are 20H and rears 24H, same as the Ksyriums I train on.
I reckon you're looking at a custom build again, so you have confidence in them, but starting with a better rim - with Zipps you'll be spending money on hubs & spokes that won't be doing anything that DA doesn't do, so put the cash into the rims instead?
Have you got anything against tri/quad spokes?
Nick_F said:
Mind you I don't develop enough power to challenge the integrity of my P-X 50mm wheels, although I am careful to keep them away from big holes in the road. Fronts are 20H and rears 24H, same as the Ksyriums I train on.
On my SRM powercrank power test, I recorded a threshold power level (i.e. aerobic capacity prior to going anaerobic) of 360 watts, and can hit a peak of almost 1400w, which most wheels can't handle!!! Although my power to weight at max is only 3.8watts/kg. I need to get this above 4 to be serious!Nick_F said:
Have you got anything against tri/quad spokes?
Nothing against them, other than looking at the evidence (albeit from Zipp's site) http://www.zipp.com/portals/0/technology/documents...I've got a set of 808's.Done about 3000kms, no issues at all and they're not clydesdales.If you feel your too heavy, just get a rear clydesdale and a normal front.Awsome wheels, very fast and still really about as areo at 50kms as you can get.The 808 clinchers are a waste of time as they are far too heavy.(i tried some)
As for strength, i'm doing max 1760w and 427 for 30minutes, i'm 82-84kg and have not had an issue with any of the zipp wheels, 303's 404's or sub 9
An intersting topic too, regarding tri, quad or oversized bladed spokes, but all bar one wheel on the wind tunnel data is slower than an 808 in the most common wind direction(15degree yaw angle).However, in a straight line with no wind like on track, its different again.
As for strength, i'm doing max 1760w and 427 for 30minutes, i'm 82-84kg and have not had an issue with any of the zipp wheels, 303's 404's or sub 9
An intersting topic too, regarding tri, quad or oversized bladed spokes, but all bar one wheel on the wind tunnel data is slower than an 808 in the most common wind direction(15degree yaw angle).However, in a straight line with no wind like on track, its different again.
Edited by pawsmcgraw on Friday 18th July 22:06
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