New hybrid hard enduro / extreme single track trail tire finds traction in the most extreme conditions - it's almost like cheating! Perfect for hard terrain! Best of both worlds, soft sticky rubber compound like the Trail Pro trials tire in a knobby tread pattern to work in a wider variety of soil conditions. Where a Trials tire falls short in braking and lose soil conditions, the 505 "Cheater" bridges that gap to make it the ultimate hybrid off-road tire. Adds confidence even in the most demanding terrain. NHS (Not for Highway Service). Tire Specifications: Speed/load rating: 68M. Permitted rim size (inches): 2.50 - 3.00. Outside diameter (inches): N/A. Width (inches): N/A. Maximum load (pounds): N/A @ 33 PSI. Construction: Tube type.