I don’t know whether it is the C 38’s rim depth or profile, hubs (DT Swiss 350 is the only option) or weight (1608 grams measured), but it didn’t seem any faster or better at climbing than the deeper and heavier wheelsets from the other Integrated wheelset companies. Roval likes to claim their performance-carbon CLX wheels are more aero than others of similar depth. While I shouldn’t expect much aero help at the depth of these Rovals, I actually felt I was working harder to maintain my speed while doing intervals in the 20 and 25mph range than other value-carbon wheelsets I’ve reviewed that are both deeper and heavier. While there was no snap when I accelerated, they did respond on par with the deeper 45mm and 50mm wheels I’ve been testing in this comparison of value-carbon wheelsets, most of which are also not rubber burners. I did find the C 38 quite stiff and handled very well when on good paved surfaces. While it was disappointing that a 38mm depth wheelset would be affected so easily in these modest breezes, I was even more surprised at how twitchy and hard to control the wheelset was going downhill at 35mph in these crosswinds. The C 38 also got pushed around by steady 10 mph crosswinds. On chip-seal roads at pressures from 55 psi up to 75 psi, it was harsh to the point where I was backing off my speed to reduce the vibration. On smooth paved roads at 60 psi where I normally ride 25C tubeless tires the width of these (26.6 mm outside width), my 150lb body found the C 38’s comfort no more than acceptable. I review wheels for my fellow road cycling enthusiasts and evaluate wheels on paved roads, albeit some that are in such disrepair they seem little better than what a packed dirt path might feel like.įor Roval’s sake, I hope the C 38 does better on dirt and gravel surfaces than what I experienced on paved roads.ĭespite its modern 21C/21mm internal rim width, I couldn’t find a tire pressure at which it rode comfortably. Performance: The Roval C 38 disc is made only for disc brake bikes but marketed for use on both paved and dirt or gravel surfaces. Roval C 38 Disc – Stiff but uncomfortable on the road and twitchy in cross breezes
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