1981 Manufacturers Riders Results

Suzuki XR40(RG-Γ)
2st/S4
Suzuki(RG500Ⅵ)
2st/S4
Yamaha OW54(YZR500)
2st/S4
Yamaha OW53(YZR500)
2st/L4
Yamaha OW45(TZ500H)
2st/L4
Kawasaki(KR500)
2st/S4

Morbidelli
2st/S4
資料なしNo data
Lombardini
?/?
Honda 2X(NR500)
4st/V4
Sanvenero
?/?
Cagiva C1
2st/L4