The G SES 4.5 Pro is built for the full spectrum of gravel. This is versatility without compromise-shaped for aerodynamic advantage across varied terrain, while keeping weight in check for climbing, accelerating, and nimble handling. With a 30mm internal width and 55mm Profile for the rear, the G SES 4.5 Pro strikes the ideal balance of responsiveness, stability, and speed. The G SES 4.5 rim paired with the Pro Innerdrive hub results in an impressively low weight wheelset that makes it class-leading against any aero-gravel competitor. New rim laminate using higher modulus, lower areal weight carbon fiber rim is optimized to further improve tubeless tire and rim reliability with a hookless bead design that allows for the precise rim dimensions required to achieve the best tubeless performance Ultralight Pro Innerdrive Hubset with ultralight 40t Pro ratchet kit and Pro Ceramic Bearings, low-friction bearing cages, stainless steel races and low-contact seals reduce drag and increase rolling efficiency Premium Straight Pull hubs utilize equal spoke lengths with an anti-twist spoke design for improved wheel strength and performance Molded Spoke Hole Technology offers a variety of benefits that ultimately result in a more durable and reliable carbon fiber rim and wheel 55mm rear depth and 30mm internal rim width is optimized for 44-52mm tires. For use with Tubeless tires only Item Specifications Cassette Body Type Shimano Micro Spline Color Black/White Defined Color Black Hub/Brake Compatibility Center-Lock Disc ISO Diameter 622 / Road / 29" Rear Axle 12mm Thru x 142mm Rim Material Carbon Rim Width (Internal) 30 Tire Type Tubeless Ready Valve Presta Wheel Size 700c ENVE Composites G SES 4.5 Pro Rear Wheel Rear Wheel UPC: 810214200789 MPN: 100-3325-023