History
Introduced in November of 1987, the NSR 250R was the second generation of the NSR line. In what many would call the best year for the NSR line, that model year introduced many innovations that made it a race winning performer. The most significant advance was the PGM module that controlled the carburetor performance, based on input from the throttle and speedometer to adjust the carbs in real time. This was the first computer control of its kind on a Honda motorcycle. This was in conjunction with the Honda RC, or” revolution control” system, an adjustable exhaust valve that constricted outflow at low RPM and opened at high RPM to produce optimum power at any throttle setting. Added to coated pistons to reduce friction wear were larger tires to keep the bike on the road and a powerful 249cc engine producing 49 hp. I’ve never ridden a motorcycle over 125cc and I thought that was impressive!