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  1. #1
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    Renn 575 vs Zipp 900

    Hello.

    I am looking into a disc wheel. I just dont know if the weight / tech advantage of the zipp 900 is worth the extra money when compared to the cost of the renn 575.

    I am in Texas, so just about any TT will be flat if that helps.

    * And if anybody has the above in shimano they are looking to unload leme know.

    Thanks for your help.

  2. #2
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    I have a Renn 575 and it works quite well.

    I don't think performance wise the extra cost of the Zipp 900 is worth it....Maybe for the Sub 9, but even then it's a toss up whether the extra cost is worth it.

    I'd say save your money and go with the Renn...but that's just me
    Bikes:
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    • 2012 Argon 18 E-118


  3. #3
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    I race on a set of tubular 404's. It has also been suggested that I just get a disk cover for them. Even a better option for the cash flow.

    Any opinions?

  4. #4
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    Quote Originally Posted by Inferno218
    I race on a set of tubular 404's. It has also been suggested that I just get a disk cover for them. Even a better option for the cash flow.

    Any opinions?
    For the intended purpose that would work just fine as long as you are not competing in any USAC or UCI races...they require an actual disc wheel and wheel covers are not allowed.

    Since it's flat in Texas (I know, I lived in Oklahoma for 8 years ) you can easily get away with the wheel cover. The only time I'd say go with an actual disc over a wheel cover is if you are doing TT's with a fair amount of climbing because they add a significant amount of weight over a regular disc...however, on flat TT's that's pretty much irrelevant.
    Bikes:
    • 2013 Scott Foil 40
    • 2013 Jamis Nova Race (winter training bike)
    • 2012 Argon 18 E-118


  5. #5
    RoadBikeReview Member
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    not true: USA cycling allows disc covers
    1M:
    (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

  6. #6
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    i have an oldfer Renn

    before the 575 Not the stiffest, but more than good enough for anything that isn't on a track and has been very reliable over 6 seasons. Great customer service too. It's not a zipp, but then neither is the price. Get the renn. You have to do a LOT of tt's or tris throughout the year to justify a $1500 wheel.

    As for wheel covers. Quite heavy and if you want to use that wheel for other things, like road racing, you'll spend a lot of time fiddling with it during the weekend.

  7. #7
    Online Wheel Builder
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    Get the 575.

  8. #8
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    Quote Originally Posted by Zen Cyclery
    Get the 575.
    +2. Awesome wheel and sounds great!
    For my next trick I will now set myself on fire!

  9. #9
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    I've raced both on my current TT bike and I like the Zipp 900 better. The Renn is a good wheel for the $$$, but I prefer the Zipp. Front is a Hed3 Carbon tubular.

  10. #10
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    -1 on the Renn.. I had to run my rear brake as far undone as I could the wheel was so frikkin flexible. Accelerating away from the start line was a joke! As was going up hills.

    Which also gave me a nice feeling that it was going to blow apart at any minute.. got rid of it when I did the bike leg in a half ironman and one of the pro's told me to ditch it as he'd seen a couple blow to pieces in races.

    However I should mention I'm not the lightest person out there!

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