Ironman two months off and need some advice from the TS brain trust on stuff I know nothing about...like disc covers.
Yes/no? Downsides? Best place to get them? Anywhere local?
About all I know is they seem to work, are about 90 bucks from Wheelbuilders.com (way cheaper than disc wheels), almost as good as disc wheels.
Any wise words?
Cheers,
Chris
Advice on disc covers
Moderator: mfarnham
-
steven grandy
- Posts: 33
- Joined: Tue Aug 04, 2009 10:42 pm
Re: Advice on disc covers
My best advice is to do the Sydney tt as much as possible. I remember when I did my first provincial tt I popped a few times due to pacing and discomfort from the position. (I sat up and softpedaled for a while) Without a doubt it cost me any advantage my wheels gave.
Disk covers are a viable option but it might be easier to borrow or rent a deep dish wheel off of someone. I've read that they add 1000g to the bike weight so this might be something to consider even though aero trumps weight in most cases. Don't forget a rear disk gives less aero gains than a good front because the air is dirty. I can't remember off hand but I think a a disk would give approximately a 15-25 second advantage over 40km at 40km/h.
Slowtwitchforums also might have some advice.
I just picked up a Ritchey carbon 50mm deep rear for $200 with 3 tubbies off usedvic because it was unpaired. So if you look around you might find something that suits your needs for close to the cost of buying and shipping a cover.
Try latex tubes in your tires. Choosing the wrong tire tube combo can negate any advantage gained from the disc cover.
http://www.youtube.com/watch?v=fJllJcLU6b0
Disk covers are a viable option but it might be easier to borrow or rent a deep dish wheel off of someone. I've read that they add 1000g to the bike weight so this might be something to consider even though aero trumps weight in most cases. Don't forget a rear disk gives less aero gains than a good front because the air is dirty. I can't remember off hand but I think a a disk would give approximately a 15-25 second advantage over 40km at 40km/h.
Slowtwitchforums also might have some advice.
I just picked up a Ritchey carbon 50mm deep rear for $200 with 3 tubbies off usedvic because it was unpaired. So if you look around you might find something that suits your needs for close to the cost of buying and shipping a cover.
Try latex tubes in your tires. Choosing the wrong tire tube combo can negate any advantage gained from the disc cover.
http://www.youtube.com/watch?v=fJllJcLU6b0