The Thirty Eight
The Thirty Eight is a toroidal rim that bulges to 28mm before slimming to 25mm at the brake track. Weighing 449 grams, it packs the most versatility into any rim with a hard to beat combination of light weight, aerodynamics and comfort. Available in 18, 20, 24 and 28 drillings. A tubular version is available; weight 346grams.