Knievel did all of his jumps at first on street bikes, and later on HD flat track racing bikes.
Since he quit jumping his records have all been broken by riders on modern motorcross motorcycles. The record now is over 3 times farther than Knievel ever jumped.
Imagine that! Imagine if Knievel did one of his best jumps, then some kid on a motorcross bike rides up behind him and jumps THREE TIMES as far!
The record now is so stupidly far and dangerous, that you either make it and land clean, or you die.
Guess this guy doesn't want to deal with that.
Maybe some runner will try to break the 4 minute mile, wearing 1970 Converse sneakers.