Use-Clydesdale riding and racing, touring and dual-slalom. Structural Benefits-Brushed brake track, triple-hollow construction with nickel plated brass eyelets. One of the best all-around rims ever made. The rim that put DH where it is today .Bullet-proof triple-hollow construction, nickel plated brass eyelets, tall brake track. Sizes-26" x 32 or 36 holes