Today's Forum Topics
Set as homepage
|
View
New Forum Topics Today's Forum Topics Set as homepage |
 |
|
|||||||
Welcome to CyclingForums.com You are currently viewing our website as a guest which gives you limited access to view most discussions. You will have to register before you can post to this thread. By joining our free online community you will have access to post new topics, communicate privately with other cyclingforums.com members (PM), respond to polls, upload photos and access other special features like product reviews and classifieds. |
 |
|
|
Thread Tools | Search this Thread | Display Modes |
14-03.-2007, 03:48 AM
|
#1 |
|
Registered User
Join Date: Dec 2006
Posts: 40
|
I want to TT with my PowerTap!
All,
Need some advice on using a PowerTap to TT with. I have it laced to a 32h American Classic Hurricane rim right now. Very strong and mildly heavy, but not the most aero wheel in the world. I bought a CH-Aero cover for it, but that truly jacks the weight up. Should I go with the cover or order a 32h custom Zipp Carbon Rim? I really want a wheel I can use for both road and TT, training and race. I figure the 58mm carbon is strong enough and still aero enough to ride everywhere.... Thoughts? The Flash |
|
|
|
14-03.-2007, 05:11 AM
|
#2 | |
|
Registered User
Join Date: Jul 2006
Location: Cleveland, Ohio
Posts: 524
 |
Re: I want to TT with my PowerTap!
Quote:
I ride my Zipp 303 Clincher wheel on almost every ride and plan on racing itin every type of race (crit, road, hilly or flat). Its not light, but it is aero and it gives me the much needed data I hope I can use to help me prepare for the next season. Personally I think your better off with the wheel cover for a flat or slightly rolling TT course. Thats what i plan on buying for my 303-a cover. |
|
|
|
|
|
14-03.-2007, 05:17 AM
|
#3 | |
|
Registered User
Join Date: Dec 2006
Posts: 40
|
Re: I want to TT with my PowerTap!
Quote:
I'm in Florida, so mostly everything is flat. I am thinking about getting a 404 tubular and using it for everything. I prefer the tubies for riding, and luckily have never had a flat on them. I could still get a new cover if needed then...... The Flash! |
|
|
|
|
|
14-03.-2007, 06:14 AM
|
#4 | |
|
Registered User
Join Date: Oct 2003
Posts: 121
|
Re: I want to TT with my PowerTap!
Quote:
Sounds like you just want to buy some bling. Go to analyticcycling and check the difference in weight on your 40K time. even a variation like 2 kilos would only make a few seconds difference. |
|
|
|
|
|
14-03.-2007, 11:44 AM
|
#5 | |
|
Registered User
Join Date: Oct 2004
Posts: 1,019
|
Re: I want to TT with my PowerTap!
Quote:
Weight is going to make very little difference in a flat tt. I'd go with the CH aero cover. You also mentioned below getting 404 tubulars, which I'd stay away from. Fast clinchers tend to be much faster (on the order of ten + watts at times) than relatively equivalent tubies. |
|
|
|
|
|
14-03.-2007, 02:13 PM
|
#6 |
|
Registered User
Join Date: Dec 2005
Posts: 87
|
Re: I want to TT with my PowerTap!
I too have a zipp 303 and use it for everything;I thought those covers were USCF illegal now so didn't buy one-anyone know if thats true?
|
|
|
|
|
14-03.-2007, 10:30 PM
|
#7 | |
|
Registered User
Join Date: Dec 2006
Posts: 40
|
Re: I want to TT with my PowerTap!
Quote:
They are still legal...I spoke with the Tech director for USCF and he confirmed it. It is also in the rulebook, but I forget the exact spot..... The Flash |
|
|
|
|
|
14-03.-2007, 10:31 PM
|
#8 | |
|
Registered User
Join Date: Dec 2006
Posts: 40
|
Re: I want to TT with my PowerTap!
Quote:
I'll go double check it....I may want the bling, but I think you just talked me out of it..... The Flash! |
|
|
|
|
|
14-03.-2007, 10:34 PM
|
#9 | |
|
Registered User
Join Date: Dec 2006
Posts: 40
|
Re: I want to TT with my PowerTap!
Quote:
I had heard this before, but I think I had forgotten about it....I am going to hold off on that rim order and just keep the PT where it is.... The Flash |
|
|
|
|
|
15-03.-2007, 05:25 AM
|
#10 | |
|
Registered User
Join Date: Dec 2005
Posts: 205
|
Re: I want to TT with my PowerTap!
Quote:
Starting in 2008, all national championships on the road and track (incl juniors, masters, U23, elites) will adhere to UCI bike rules, which prohibit wheel covers. Same deal for NRC races (note that typically only Pro/1 men and Pro/1/2 women can even start NRC events). So the cover is still fine this year for masters nats, NRC events...next year you can still use it for your local TTs, state championships, etc...borrow a disk (or a PT/Blackwell 100) if you just do masters nats...if you're a rider that rides NRC races regularly, then you ought to have a sponsor who will buy you an SRM.  |
|
|
|
|
|
15-03.-2007, 06:19 AM
|
#11 | |
|
Registered User
Join Date: Dec 2006
Posts: 40
|
Re: I want to TT with my PowerTap!
Quote:
I'm just a podunk local rider who will probably do States this year. Turns out that my buddy wants to buy one of my TT bikes, so I can afford to put it on a Zipp rim now. I should have it in about 2 weeks and I will probably seel the disc cover off as well. I still have a full disc wheel that I can use if needed, but having the PT for all around use will be very good. My pacing needs help and the PT doesn't lie.... Flash |
|
|
|
|
|
20-03.-2007, 07:57 PM
|
#12 | |
|
Registered User
Join Date: Feb 2004
Location: Surrey
Posts: 89
|
Re: I want to TT with my PowerTap!
Quote:
Id like to see some real data on this. I cant see how a quality well stuck on Tub can be >10 watts higher RR than a tyre. I saw a couple of dpcuments but they looked more like "marketing reasearch". Anyone got anything comparing say Conti Podium/Tufo/Zipp to a good tyre? |
|
|
|
|
|
20-03.-2007, 09:32 PM
|
#13 | |
|
Registered User
Join Date: Dec 2006
Posts: 40
|
Re: I want to TT with my PowerTap!
Quote:
No real data, but I want to know why a Tufo seems so loud when riding....any other tire seems to be rather quiet compared to my Tufo tubular. Is this a sign of rolling resistance? Flash |
|
|
|
|
|
20-03.-2007, 11:22 PM
|
#14 | |
|
Community Team
Join Date: Nov 2002
Location: Newport, South Wales
Posts: 3,831
|
Re: I want to TT with my PowerTap!
Quote:
If i'm not mistaken (and i maybe) the wattage list discussed Tufo tubs last year or the year before, and (i think) the conclusion was that the rolling resistance of them was terrible. ric
__________________
http://www.cyclecoach.com |
|
|
|
|
|
21-03.-2007, 01:15 AM
|
#15 | |
|
Registered User
Join Date: Dec 2005
Posts: 205
|
Re: I want to TT with my PowerTap!
Quote:
http://www.biketechreview.com/tires/AFM_tire_crr.htm http://www.legslarry.beerdrinkers.co.uk/tech/JL.htm http://bikepages.ultimade.nl/index....yretest&lang=en Also, the German magazine Tour published some tests a couple years ago, .jpg's of their findings have been posted on various sites. I don't recall whether they used a huge roller or velodrome testing. Nothing in their results was inconsistent with the 3 links above though. |
|
|
|
|
Linear Mode
