Carbon fiber rims AR25-45 vs AR25-50 Selection Guide
These two U-shaped aerodynamic disc-brake carbon rims share an identical 25mm internal width. They feature the same tyre profile, full range of spoke hole options, three professional drilling patterns and dual-weight carbon layup configurations. The key differences lie in aerodynamic performance, overall weight, crosswind handling, and the riding applications suited to the 45mm and 50mm rim depths. Below is a comprehensive breakdown covering rim profile characteristics, suitable riding conditions, recommended spoke-hole counts and drilling patterns, as well as target rider profiles to help you choose the right rim for your needs.