Collins is super excited to introduce the new Collins Hi-Speed G7X Dolly. The G7X was initially designed specifically for Canadian tow operators. Dollies have been getting lighter; Canadian tow operators asked for a heavier duty dolly, built for the harsh winters, ice and snow, and off-road use of rural Canada. Stronger, heavier duty build with thicker steel construction that will take more abuse and last longer Steel hubs and high-capacity steel wheels Steel cross rail insert with true-positive camber High-traction, aggressive tread 5.00 load-range E tires with a weight capacity of up to 5,000 lbs Weight: 228 lbs Comes two dollies, T12 Hybrid Cross Rails that have aluminum outer rails and a steel inner rail, pry bar, and tie-down straps The 5.00×8 tires of the G7X carry a speed marking of M representing 75 MPH. Due to the heavy duty nature and weight of this dolly, Collins highly recommends using the Collins Self-Loading Dolly Mount DMP-SL-G2 Recommended PSI is 120-125