At just over 24mm wide and featuring our deepest profile (24.5mm), the Grail is the most aerodynamic rim we’ve ever made. Though it rivals much deeper designs in the wind tunnel, we designed the Grail to be much more than just fast in a straight line. Our variable wall thickness spoke bed maximizes durability and ensures consistent spoke tension while keeping weight low. Its internal rim channel and true BST sidewalls combine to lend additional strength and create a tire profile that’s simply faster. Put to the test in some of the harshest racing conditions, the Grail has proven it has what it takes to accelerate quicker and roll faster than the competition. The Grail redefines tubeless road and cyclocross performance. Lightweight 440g tubeless rim design optimized for disc and tubeless Ultra fast-engaging and lightweight Neo hubs with Durasync Durable and light 6069 aluminum construction Patented BST-R tubeless rim inflates easier and offers a more secure tire fit 20.3mm WideRight rim design improves cornering and stability and lets tires roll faster Optimized for 25-40mm disc road, gravel, and cyclocross tires
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