When a customer requests a replacement tire with a lower speed rating than the original equipment tire, you must clearly communicate to him or her that the handling of the vehicle may be different, and that its maximum speed capability is limited to that of the lowest speed-rated tire on the vehicle. Inflation pressure increase must not exceed the maximum pressure branded on the tire sidewall. Before mixing types of tires in any configuration on any vehicle, be sure to check the vehicle owner's manual for its recommendations.ĭANGER: Never mount a 16" diameter tire on a 16.5" rim.ĭANGER: Never mount a 17" diameter tire on a 17.5" rim. Only tire professionals should mount tires and they should never inflate beyond 40 psi to seat the beads. Serious injury or death may result from explosion of tire/rim assembly due to improper mounting. To ensure correct air pressure and vehicle load, refer to vehicle owner's manual or tire information placard on the vehicle. WARNING: Serious or fatal injury may result from tire failure due to underinflation or overloading. Tires for a particular dimension of a given tireline may vary in appearance from the tire shown in the photograph. > Tread patterns are often tuned to accomodate different tire widths. > Section width varies approximately 0.2" (5mm) for every 0.5" change in rim width. Some tires may vary from this value by +/-3% of the section height (affecting overall diameter), and +/-4% of the section width. The sizes shown are average design values for tires measured on specified measuring rim widths. (3) Based on internal autocross dry, subjective wet and snow handling results using a 2015 BMW 328i versus the BFGOODRICH ® g-Force™ COMP-2™ A/S tire in size 245/40ZR18 XL 97Y. (2) Based on internal autocross and subjective wet handling results using a 2015 BMW 328i versus the BFGOODRICH ® g-Force™ COMP-2™ A/S tire in size 245/40ZR18 XL 97Y. The BFGs didn't complain when I hit the brakes with everything I had, and I came to a quick, uneventful stop.(1) Based on internal autocross dry and subjective wet handling results using a 2015 BMW 328i versus the BFGOODRICH ® g-Force™ COMP-2™ A/S tire in size 245/40ZR18 XL 97Y. The final portion of the wet autocross called for a full ABS stop. On my second run, I felt confident enough to give it a little more gas through the turn. This turn caught me by surprise, but luckily, I was able to correct my line and make it through without incident. Next was a sweeping left-hander, which narrowed toward the end for a slightly decreasing radius corner. Going into the slalom, you could tell the ground was plenty wet, but the car's steering remained responsive, allowing me to finish the course without plowing through too many cones. Launching the DSG-equipped GTI (kept in sport mode for the duration of the test), I experienced a bit of wheelspin on takeoff, but was able to gain traction not long after. We first drove the course on the BFGs, which held up reasonably well against the slippery asphalt surface. The GTI was the weapon of choice for this demonstration, and the tires compared against the Comp-2 were the Kumho Ecsta SPT and Hankook Ventus V12 Evo. Our first test took us to the parking lot of the Auto Club Speedway, where BFG set up a wet autocross course. The Comp-2 will take the g-Force Sport's place in the lineup as the brand's Ultra High-Performance (UHP) offering, slotting beneath the top dog g-Force T/A KDW summer tire in price. The Comp-2 carries a UTQG (Uniform Tire Quality Grading) tread wear rating of 340/AA/A, identical to the current g-Force Sport's rating. The Comp-2's directional tread pattern is similar to the g-Force Sport it replaces, with BFG's signature "g-Hooks" and shallow shoulder blocks. In addition, the Comp-2's structure is reportedly 40 percent more rigid, with the addition of g-Control wedge inserts in the sidewall, and BFG's Equal Tension Containment (ETEC) system surrounding the tire's internals. The Comp-2 moniker stands for compound two, a next-gen silica-infused tread compound that BFG says helps the new tire achieve 30 percent better wet grip and 8 percent better dry grip than the outgoing g-Force Sport. BFGoodrich picked California's Auto Club Speedway as the test site for the launch of its g-Force Sport Comp-2, the successor to the current g-Force Sport.
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