The new Aero Pro rim from BSD may look like a lightweight rim but don’t let it’s aerodynamic styling fool you. Like it’s big brother, the NASA rim, it’s design has been engineered with strength as the key feature. The Aero Pro rim has extra thick tapered sidewalls, angled spoke seats designed to accommodate proven cross-over lacing and a curved inner strut. It also has two intra cavity supports further increasing the radial stiffness and axial strength. ###section### Product Specs WHEEL SIZE: 20\" SEAM: Welded ERD: 384mm HEIGHT: 20mm WIDTH: 36mm SPOKE HOLES: 36h WEIGHT: 498g