Yamaha’s YZF-R125 delivers its “legal” peak of 15 horsepower at 9,000 rpm, and torque reaches 9.2 pound-feet at 8,000. As for the revised chassis, it now sports a 41mm inverted fork, which is set at 25 degrees of rake and with 3.5 inches of trail. The front disc brake is also new, now featuring a single 292mm rotor and a radial-mount caliper. Belted cross-ply tires that measure 110/80-17 in front and 130/70-17 in back are more than adequate for serious riding. Other vitals include a 53.0-in. wheelbase, a seat height of 32.5 in., and a claimed wet weight—with all liquids in place and 3.0-gallon tank full of gasoline—of only 308.5 lb.