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  1. #1
    RoadBikeReview Member
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    Aero advantage between 58 vs 52 rims

    In your experiances. Is their a noticable aero advantage between a 52mm rim vs a 58 mm rim? Or do you need to go 68/80 deep before you have a true aero advantage over a 52mm or even a 45mm deep rim.

  2. #2
    RoadBikeReview Member
    Reputation: stevesbike's Avatar
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    have a look at something like this from Hed (comparing standard, 40 and 60s and 90s

    http://www.hedcycling.com/wheels/jet6.asp

  3. #3
    Online Wheel Builder
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  4. #4
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    The answer isn't as simple as depth of rim, though that plays a part. Other factors include rim shape, spoke count, spoke shape, tire used on a particular rim, probably others. That graphic from roues artisanales (sp?) that Zen links you to illustrates this.

    Angle of wind is also important as stevesbike's link illustrates.

  5. #5
    RoadBikeReview Member
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    yes, if you take into account real-world conditions and wind angle, the Hed3 is really the best (if you're talking time trials)
    http://www.hedcycling.com/wheels/H3_clincher.asp

    in particular, it doesn't stall at high wind angles, but actually decreases drag.

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