Front Wheel Ball Bearings Bultaco Motorcycles 2 Bearings 2 bearings for Front Wheel Bearings, bearings are Bultaco Motorcycles.They fit All 1967-1979 / 81 Bultaco Pursang motocross and Frontera enduro bikes regardless of displacement.That includes everything from the 1967 MKII model 42 Pursang, through the last MK15, model 222 Pursang.