1974jh5
Curmudgeon.
I remember Scott Summers! He could actually pick up and hold his entire bike.
Holding the ~320 pound XR600:
And the (relatively, ~270 pound) light XR400:
The boy was tough. I watched him wear out Steve Hatch at a GNCC; he plain old outlasted him, even riding that big heavy hog of a 600 thumper 'trailbike'. Hatch was riding a Suzuki RM250, they ran neck and neck for 4 11 mile laps until Hatch just couldn't take it any more.