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Anyone use disc covers?

Old 07-31-07, 09:51 AM
  #1  
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Anyone use disc covers?

Like this?

http://www.wheelbuilder.com/closeup....d=185&offset=0

Powertap SL + 404 rims go for ~$1400 on eBay.

I can get a front tri-spoke or 404, etc, wheel on eBay for ~$400. And a disc setup in back for $75.

This would be for TT'ing only.
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Old 07-31-07, 10:03 AM
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yes, I use the exact same over my Open Pro + PT hub and it works awesome...

no complaints at all
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Old 07-31-07, 10:07 AM
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I've got a disc cover I cut for an open pro/powertap combo lying around now since I've sold my powertap, PM me if you interested.
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Old 07-31-07, 10:07 AM
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I haven't used one, but this is a direction I've considered. Rear wheel aerodyanmics matter so little that I can't imagine there's much of pressure difference vs. a CF Zipp disc.
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Old 07-31-07, 10:07 AM
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Originally Posted by pinky View Post
I've got a disc cover I cut for an open pro/powertap combo lying around now since I've sold my powertap, PM me if you interested.

Hmm... I have a PT, but it's on a CXP33.
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Old 07-31-07, 10:14 AM
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Originally Posted by waterrockets View Post
I haven't used one, but this is a direction I've considered. Rear wheel aerodyanmics matter so little that I can't imagine there's much of pressure difference vs. a CF Zipp disc.

with how good wheelbuilder is making/cutting the wheelcovers, I think the only difference is weight and OCPness. I do notice a dif between the wheel cover and without though.
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Old 07-31-07, 10:21 AM
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I have one on my ac58's from wheelbuilder and it is lighter than a zip disk. The fit is ok but for the price I cant really complain. As far as aero data between the two, these is almost no difference between a cover and a solid disc.
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Old 07-31-07, 10:22 AM
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Anyone have a DIY version? I was thinking about the shrink-wrapped wireframe version like the old J-disc covers. Make it flat and let the hub push it out into a cone.
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Old 07-31-07, 10:27 AM
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I really like mine...a real bargain over a disk, and I think being able to TT with the PowerTap counterbalances any slight performance disadvantage. Unless you own an SRM or Ergomo, it's probably the way to go.
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Old 07-31-07, 11:11 AM
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FYI Powertap SL with 404 goes for $1390 at all3sports.com. That is, without the electronics package.
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Old 07-31-07, 07:00 PM
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Originally Posted by waterrockets View Post
Anyone have a DIY version? I was thinking about the shrink-wrapped wireframe version like the old J-disc covers. Make it flat and let the hub push it out into a cone.
i've made a bunch years ago a little before the j-disc came out. i used them mostly on the track but did a few for tt's as well. i can tell you how to did it but i won't type it out since i suck at typing
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Old 07-31-07, 09:25 PM
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Anyone know it these covers are Canadian Cycling Association approved for TT's?
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Old 07-31-07, 11:04 PM
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Originally Posted by zzzwillzzz View Post
i've made a bunch years ago a little before the j-disc came out. i used them mostly on the track but did a few for tt's as well. i can tell you how to did it but i won't type it out since i suck at typing
Just tell me the top three ingredients, and I can figure it out
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Old 07-31-07, 11:44 PM
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Originally Posted by branman1986 View Post
with how good wheelbuilder is making/cutting the wheelcovers, I think the only difference is weight and OCPness. I do notice a dif between the wheel cover and without though.
What do you notice specifically? I am thinking about going this route as well...
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Old 08-01-07, 05:40 AM
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technically- they are illegal for competition use.

i think the rule is- that every part of the wheel has to have a structural purpose. hence, no fairings, no covers, no baseball cards in the spokes.

i say technically- because most local TTs NEVER have a tech inspection.

so, will you ever be banned from competing in an event if you have one? i really dont think so.


however, if you are competing... it is inferior to a disc.
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Old 08-01-07, 06:03 AM
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Originally Posted by sleazy View Post
technically- they are illegal for competition use.
From what I hear, they're NOT illegal for USCF events. Not true?
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Old 08-01-07, 06:14 AM
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From the USCF rulebook:

Originally Posted by USCF Rulebook
1J. Bicycles
1J1. Bicycles used in competition must be propelled solely by the rider's legs and shall have the following characteristics:
(a) Dimensions. Bicycles may be no more than 2 meters long and 75 cm wide, except that tandems may be up to 3 meters long
(b) There may be no protective shield, fairing, or other device on any part of the bicycle, which has the effect of reducing air resistance except that spoke covers may be used
(c) Wheels may be made with spokes or solid construction. No wheel may contain special mechanisms to store and release energy
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Old 08-01-07, 06:21 AM
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1J. Bicycles
1J1. Bicycles used in competition must be propelled solely by the rider's legs and shall have the following characteristics:
(a) Dimensions. Bicycles may be no more than 2 meters long and 75 cm wide, except that tandems may be up to 3 meters long
(b) There may be no protective shield, fairing, or other device on any part of the bicycle, which has the effect of reducing air resistance except that spoke covers may be used
(c) Wheels may be made with spokes or solid construction. No wheel may contain special mechanisms to store and release energy
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Old 08-01-07, 06:22 AM
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What's "spoke covers" then?
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Old 08-01-07, 06:24 AM
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Spoke covers?

http://www.genericgifts.com/prod-68612.htm
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Old 08-01-07, 06:47 AM
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Not as OCP as a disc but not bad
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Old 08-01-07, 08:30 AM
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Originally Posted by NomadVW View Post
From the USCF rulebook:
(b) There may be no protective shield, fairing, or other device on any part of the bicycle, which has the effect of reducing air resistance except that spoke covers may be used
So, instead of $100 40mm fairings for our wheels, we have $2000 Zipps. That is pretty annoying.

I guess there's no point in complaining but it would be nice if they opened up wheels.
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Old 08-01-07, 08:36 AM
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It isn't really an issue unless you are racing at nationals. Even state or district championships I dont think you would have a problem(not in this area atleast)
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Old 08-02-07, 12:37 PM
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Originally Posted by mfennell View Post
So, instead of $100 40mm fairings for our wheels, we have $2000 Zipps. That is pretty annoying.

I guess there's no point in complaining but it would be nice if they opened up wheels.

first off- you can get a heck of a disc wheel from HED for $500-600 depending on how good your LBS is to you. so $2000 is not an issue...

and second- as i and others stated earlier... this illegality is really a non-issue except at a national level.

i dont think there is a local (yes, i said LOCAL) TT series in the country that wont take your $20 and let you run with a cover.
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Old 08-02-07, 12:50 PM
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Originally Posted by sleazy View Post
and second- as i and others stated earlier... this illegality is really a non-issue except at a national level.
And not even then. Call it spoke covers or wheel covers or anything else; they're legal under USCF rules for all races - mass start and TT's.
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