For most of the late 60s and early 70s, two-strokes dominated the off-road market. They were lighter, faster, and simpler than their four-stroke counterparts, and thumper evolution had all but stalled since the British singles […]
For most of the late 60s and early 70s, two-strokes dominated the off-road market. They were lighter, faster, and simpler than their four-stroke counterparts, and thumper evolution had all but stalled since the British singles […]