The Aztek Siren 3 Deck is back & better than ever. This is our strongest deck. Improvements include a lighter & more responsive deck plate, a flat grinding surface on the front dropouts, a strengthened welding technique on the headtube, & fresh new colors. Available in 5.5 & 6.0 widths, & 22 & 23 lengths. Specs: (5.5 x 22 ) (5.5x 23 ) (6 x 22 ) (6 x 23 ) Solid Aluminum Dropout Inserts 3D-Forged Aluminum Headtube 84 deg. HTA 24mm/30mm Wheel Compatibility