* Designed for a world of imperfect conditions, road surfaces, and elements where the bottom line is simple. Efficiency = speed.* Reduced wind resistance, rolling resistance, rider fatigue, weight* 32mm outside width, 25mm internal width, and 40mm rim depth* Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile* Lighter Weight than its predecessor, making it nimble and fast.* Tubeless Made Easy, optimized tire bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tire.* Ultra-wide 25mm rim profile creates a better tire interface to be fast on or off the road* 40mm rim depth makes a light and aero wheel in every situation* ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement* Center locking rotor interface. Lockring is included with the wheels* SRAM Model ID: WH-303-FTLD-A1