What Our Gearhead(R) Experts Are Saying: "I switched to the SC45 i23 TL for a fast 70. 3 course and was impressed by the balance of aerodynamics and handling. The wider 23mm internal width pairs great with modern tires, and the ratchet hub engagement feels snappy on climbs and corners."When we're chasing speed in races or logging big training miles, we want a wheelset that blends aero performance, responsiveness, and modern tire compatibility; the SC45 i23 TL Wheelset delivers. Built with a 45mm carbon rim, this wheelset finds the sweet spot between climbing agility and flat-out aerodynamic efficiency, making it an ideal all-around option for triathlon, road racing, and fast group rides. The 23mm internal rim width pairs perfectly with wider tubeless tires for enhanced comfort and cornering grip. Vision's new PRS hub system features a 54-tooth ratchet for lightning-fast engagement and power transfer, technology derived from the flagship Metron series. Artisan-built by hand and finished with direct-pull aero spokes, this wheelset rolls fast, tracks precisely, and offers confidence-inspiring control across varied terrain.