Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Triathlon Swim / Bike / Run your thing? Drop in our new triathlon forum for the latest in training & gear. From beginner to expert, and sprint to ironman.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-22-05, 10:33 AM   #1
jim wallace
Junior Member
Thread Starter
 
Join Date: Aug 2004
Bikes:
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
aero wheels

I use my road bike for triathlons and am wondering if aero wheels would make much difference in speed. I currently have bontrager race light wheels and am looking at getting bontrager race x light aero. They are $800 and I was wondering it would be worth the money. Thanks
jim wallace is offline   Reply With Quote
Old 07-22-05, 10:55 AM   #2
filtersweep
Senior Member
 
filtersweep's Avatar
 
Join Date: Mar 2004
Bikes:
Posts: 2,615
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
No- they are barely aero at 31mm. You'd need something deeper- probably carbon- and if you aren't a contender, you'll receive more benefit from a great aero position.
filtersweep is offline   Reply With Quote
Old 07-22-05, 11:38 AM   #3
Triguy
Senior Member
 
Join Date: Sep 2004
Bikes:
Posts: 1,677
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hmm $800 is a lot of money. If you spent it wisely you could probably end up with more benefit than you would recieve than from the wheels you've chosen. There are various things that will gain you times say over 40k tt...

A good aero position (most likely need a tri bike to achieve) will save around 4-5 minutes over your average drops position

A good set of wheels is around 1.5 minutes gain over a 23mm deep rim

An extremely aero frame is around 45 seconds over standard round tubing

To be honest it is a personal thing, I don't know how into triathlons you are. Maybe you just want wheels for riding on the road too, if so get the wheels. However, if this is purely a time gain thing I suggest looking at a new position. By the way if you want to spend $800 on fast wheels I suggest these

Hed Jets($700) or Alps($900) both of which are very aerodynamic and clinchers for convenience
Triguy is offline   Reply With Quote
Old 07-22-05, 02:03 PM   #4
barleyrocket
???What???
 
barleyrocket's Avatar
 
Join Date: Jul 2004
Location: Portland ish
Bikes: Cervelo R2.5 - Cervelo P2k - Bianchi Vigorelli - Cannondale 3.0
Posts: 312
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
a set of areo rims probably won't get you much off of your time, or move up very many spots. Take the $800 and upgrade the engine by getting a coach or just save the money.
barleyrocket is offline   Reply With Quote
Old 07-22-05, 02:39 PM   #5
racergirl
Senior Member
 
Join Date: Jul 2005
Bikes:
Posts: 87
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Scroll down this webpage for a chart on time saved per device.
http://damonrinard.com/aero/aerodynamics.htm

Whether its worth it or not depends on things like length of race, whether you trying to qualify for something, how windy it is that day. Barleyrocket had it right. A good coach can help you shave a lot more time off than expensive bike components (I know, they are so much fun).
racergirl is offline   Reply With Quote
Old 07-22-05, 03:10 PM   #6
skydive69
Senior Member
 
skydive69's Avatar
 
Join Date: Sep 2004
Location: Seminole, FL
Bikes: Guru Geneo, Specialized Roubaix Pro, Guru chron 'alu, Specialized Sequoia
Posts: 2,258
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by barleyrocket
a set of areo rims probably won't get you much off of your time, or move up very many spots. Take the $800 and upgrade the engine by getting a coach or just save the money.
I disagree with this chap. Throw on my set of Zipp 999's and run a time trial and tell me they didn't make a hell of a difference. You get those babies humming at about 30, and they just don't want to slow back down!
skydive69 is offline   Reply With Quote
Old 07-23-05, 09:32 AM   #7
MHR
IM140.6
 
Join Date: Dec 2004
Location: Golden, Colorado - USA
Bikes:
Posts: 285
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by jim wallace
I use my road bike for triathlons and am wondering if aero wheels would make much difference in speed. I currently have bontrager race light wheels and am looking at getting bontrager race x light aero. They are $800 and I was wondering it would be worth the money. Thanks
$800 would buy you a pretty good set of Road wheels, but you will need to spend at least $1,400 for Zipp 404's which are pretty much the standard for Triathletes. I use my 404's in training, and use my new Z series 999's in races depending on the wind conditions. I would like to add an 808 rear and a 303 front to give me more options.

But do Aero wheels make a difference? Depends on the distance - the longer the better. if your doing sprints it's overkill - Olympic, yes you will be faster. In a 1/2 IM ya baby now your talking. In Hawaii disc wheels are not allowed due to the winds...even using my 404's there was scary at times.

Last edited by MHR; 07-23-05 at 09:39 AM.
MHR is offline   Reply With Quote
Old 07-24-05, 06:48 PM   #8
my58vw
Meow!
 
my58vw's Avatar
 
Join Date: Sep 2004
Location: Riverside, California
Bikes: Trek 2100 Road Bike, Full DA10, Cervelo P2K TT bike, Full DA10, Giant Boulder Steel Commuter
Posts: 6,025
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Race X areos... hmmm...

They are very good wheels... but not very aero at all. I run a set for training on my road bike, very strong and light and if you want a strong set of wheels they are great... not worth 800 IMO... a paid 600 for mine. I use a set of cosmic carbones (05 carbon model) and I would not go less than that if you want a true aero wheel.

Expect to spend 1200+ for a good set of wheels for tri/tt, even if you go with HED tri spoke (around 1100 retail).
__________________
Just your average club rider... :)
my58vw is offline   Reply With Quote
Old 07-24-05, 09:54 PM   #9
Triguy
Senior Member
 
Join Date: Sep 2004
Bikes:
Posts: 1,677
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I disagree that you need to spend over 1200 for an aerodynamic set of wheels. Wheels that give a significatn benefit genrally start around 40mm in depth and the deeper the faster. As I pointed out above the Hed Jet series can come in depths even more aero than your Mavics, and are around $700, they aren't the lightest but that becomes a fairly moot point when you are running 65mm deep and 90mm deep wheels. A Renn disc comes in at $450, throw that with a Hed Jet 60, or any 40mm deep front and the speed is equivalent if not surpassing anything else out there for a mere $800. Speed can be had for as cheap or as expensive as a person wants,
Triguy is offline   Reply With Quote
Old 07-24-05, 11:47 PM   #10
my58vw
Meow!
 
my58vw's Avatar
 
Join Date: Sep 2004
Location: Riverside, California
Bikes: Trek 2100 Road Bike, Full DA10, Cervelo P2K TT bike, Full DA10, Giant Boulder Steel Commuter
Posts: 6,025
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
That is true, I was not thinking about the RENN disc which is an increadable bargain. I guess it is a combination of weight and aero benefit and in a Tri weight is not much of an issue...

Shoot you can get one of those wheel covers and make a disc wheel for about 150 dollars...
__________________
Just your average club rider... :)
my58vw is offline   Reply With Quote
Old 07-25-05, 07:25 AM   #11
barleyrocket
???What???
 
barleyrocket's Avatar
 
Join Date: Jul 2004
Location: Portland ish
Bikes: Cervelo R2.5 - Cervelo P2k - Bianchi Vigorelli - Cannondale 3.0
Posts: 312
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by skydive69
I disagree with this chap. Throw on my set of Zipp 999's and run a time trial and tell me they didn't make a hell of a difference. You get those babies humming at about 30, and they just don't want to slow back down!
How much time did they save off a time without them? Without imperical data its tough to say. I don't think it was the wheels however....its the skin suit that saved you all that time. Nice....
barleyrocket is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 07:41 PM.