1991 Manufacturers Riders Results

Yamaha OWD3(YZR500)
2st/V4
Yamaha(TZ250B)
2st/V2
Honda NV0K(NSR500)
2st/V4
Honda(RS500)
2st/V3
Suzuki XR77(RGV-Γ)
2st/V4
Suzuki(RGB500)
2st/S4
Cagiva C591
2st/V4
Norton NRS588
4st/L2(Rotary)
Roton
4st/L2(Rotary)

Paton V115C4
2st/V4