Vision SC45 SL Wheelset The Evolution of Aerodynamics The wheels on your bike don't just go round and round; they can greatly improve your bike's aerodynamics and speed. The Vision SC45 SL Wheelset is an evolution of the previous SC models. It now features a 23mm internal rim width for improved compatibility with wider tires and enhanced stability. It has a brand-new PRS hub with a 54-tooth ratchet system for faster, more efficient power transfer derived from our top-of-the-line Metron technology. Features Brand-new PRS hub with a 54-tooth ratchet system for faster, more efficient power transfer Carbon fiber rims with a 45mm rim depth for aerodynamics Tubeless-ready so you can ditch the inner tubes2:1 aero bladed spokes for more aerodynamics Artisan-built entirely by hand SPECIFICATIONSWheel Size700c Material Carbon Fiber Outer Width-Inner Width23mm Rim Height45mm Spoke Drilling24HValve Type Presta Tubeless Yes Tire Type Clincher Brake Compatibility Disc (Centerlock)Front Axle12x100mm Rear Axle12x142mm Intended Use Road Approximate Weight1542g | Vision Tech | Sc45 Sl Wheelset Hg 11/12S