Giant Reign SEBig hits and all out descents. This trail crushing enduro machine features a unique paint treatment that makes each bike one of a kind. Its mixed wheel size, with a 29 inch front and 27. 5 inch rear, blends stability and speed with agility that pops. The geometry is designed for a longer travel 165mm rear suspension setup and a 180mm fork, giving you the upper hand on the on the rowdiest trails and bike park terrain.