Disc brake compatible carbon fiber cyclocross fork with through axle compatible with high volume tires CROSS FORK DISC uses through axle to reduce rotor wear and caliper adjustment. It also supports high-volume tires, so you can enjoy a bolder challenge with large tires. 45mm (1.9 inch) tires can be installed on 700C wheels, and 50mm (2.0 inch) tires can be installed on wheel size 650B. Utilizing ENVE's unique molding technology, CROSS FORK DISC offers the best performance on cyclocross and gravel roads. It has a one-piece construction from the stairer tube to the fork end, which means it is a light, durable and extremely efficient design. The front through axle diameter is 12mm, which is ideal for road and cyclocross discs. This full carbon fiber CX fork is only available for taper steers from 1.125 "to 1.5".