Cannondale Hollow Gram G-S 27 700c Ai Rear Wheel Epic wheels for epic rides The Cannondale Hollow Gram G-S 27 Ai Rear Wheel is designed for the big days when ride surfaces change from rugged doubletrack, to chunky pavement and everything in between. The G-S 27 Ai Wheel boasts a lightweight and durable hookless carbon fiber rim, for lightweight performance with a rugged design. This Ai version also features Cannondale's Asymmetric Integration, a 6mm rear hub offset that allows for shorter chainstays on certain Cannondale models. The 27mm internal rim width and hookless rim design is a modern take on gravel, with support for wide gravel tires, increased traction, improved ride quality, and increased durability. The rim also features an off-center design, with offset spoke holes by a few mm, increasing wheel strength. The Hollow Gram G-S 27 Wheel runs on the legendary DT Swiss 350 hub, for smooth, long-lasting reliability. No matter where the ride takes you, the Hollow Gram G-S 27 Wheel is up to the task. Features Lightweight, durable carbon fiber rim design at only 1425 grams for a complete wheelset, with the toughness to handle rugged gravel Ai - Asymmetric Integration wheel offset features a 6mm offset to the right, allowing for shorter chainstays and proper chainlines on certain Cannondale bike models Hookless rim profile for less weight, increased durability, and reduced risk of pinch flatting while running lower tire pressures (hookless-compatible tires only)Off-center rim design with spokes offset by a few millimeters, for more balanced spoke tension and increased reliability DT Swiss 350 hub provides smooth, long-running reliability and an upgradable rear hub engagement design that requires only minimal service27mm internal rim width for modern high-volume gravel tires, increased traction, and a better ride SPECIFICATIONSWheel Size29"/700c Hub Offset (Ai - Asymmetric Integration)6mm Rim Material Carbon Inner Width27mm Spoke Drilling28-hole Valve Type Presta Tubeless Yes Tire Type Tubeless, Clincher (hookless-compatible tires only)Valve Type Presta Rear Axle12x142mm Intended Use Gravel | Cannondale | Hollowgram G-S 27 Ai 700C Rear Wheel Rear 12X142Mm, Centerlock, Shimano