I saw those drag races several years ago. The other examples (tractors and cars), were blown through so fast they were mostly wasted.
Still fun though. I had a Suzuki RG500 Gamma, for a short time. It was way too much bike for me to be comfortable. But always an immense hoot.
I've not heard of a Gamma being drag raced.
The most fun I have on my 2 strokes is running a small bore engine fast, on hilly country roads. On occasion you'll see a home owner drop his rake, mower, shovel and punching the sky w/both fists; You know he wants to ride again.
Contemporary 2 strokes are making outrageous power, by comparison.
2 - 125's, 400, 500. 5 - 4 strokes. Thanx for posting the link. R3~