The e*thirteen Flux Pro 66 GR Aluminum Rim - 28H, 29", Black is a premium, gravity-specific alloy rim engineered with a welded 6069 aluminum construction. Combining an impact-absorbing 17mm low-profile shape, 30mm inner width, and a weight-saving 28-hole drilling, it redefines downhill performance by blending unmatched structural strength with fatigue-reducing terrain compliance.