ICAN 700C Carbon Road Bike Rim Front or Rear 38mm Depth 23mm Width Basalt Brake Surface BEST ALL AROUND CARBON RIM, AERODYNAMIC AND LIGHTWEIGHT-38mm rim is our lightest, and most crosswind stable wheel. The 38mm profile provides some aerodynamic advantage while also being superlight for climbing and acceleration. That would be best choice for riders looking for an all around wheelset. FULL CARBON CLINCHER. HIGH STRENGTH CARBON FOR LIGHTWEIGHT PERFORMANCE-using the latest carbon forming technology, we are able to build a very strong rim from carbon only. A critical area for durability, the tire bead hook of clincher rim is up 73% stronger than other carbon clincher rims. This make wheel that is very light with positive braking performance and reliable durability 23MM WIDE RIM, INCREASED AERODYNAMICS AND IMPROVED HANDLING-the rim's 23mm width improves aerodynamics by creating a more uniform airflow over the wheel, balancing the aerodynamic forces of the rim with the leading edge of the tire RECOMMENDED FOR-Road Bikes, Cyclocross Bikes, Triathlon Bikes, Time Trial Bikes GUARANTEE-2 Years