The Dunlop Rebate That Sticks!: From September 1st through December 31st, 2013, receive a mail-in rebate of up to $50 with the purchase of any Dunlop Geomax Tire (MX11, MX31, MX51FA, MX51, MX71)! With the purchase of 3 or 4 Dunlop Geomax Tires, also receive a set of 2 "Geomax" tire stickers per tire. *For additional details, terms and conditions, please see linked Dunlop Geomax Rebate Card. Geomax MX51 helps deliver enhanced grip, added tread longevity and a wider range of terrain applications, reaching farther into hard-pack conditions. Profile design provides more tread volume (greater land / sea ratio) in the shoulders for excellent cornering grip and a more open center-tread area for straight-line grip. Recessed biting edges in shoulder tread blocks yield enhanced traction for greater grip in corners and ruts throughout a wide range of terrain conditions. Tie-bar design connects and reinforces the tread blocks for greater tread stiffness, yielding improved intermediate-to-hard terrain performance. Recessed design in the area between tread blocks gives the tire improved compliance for enhanced ride comfort. Knobs are placed in a unique "cross-stitch" shoulder-block distribution for enhanced traction and grip in intermediate-to-hard riding conditions. Larger-radius tread block base for strength and enhanced tread longevity. Tire Specifications: Load / speed index: 51M. Recommended rim: 1.60". Overall diameter: 27.87". Overall width: 3.66". Full tread depth: 15/32". Maximum load (pounds) / PSI: N/A.