Any question answered...

Or just getting snagged and dropping your wheel out. As you wheelie over the line at 40mph, like Awang.

I'm guessing some safety reason, the lever sticking in someone/the expensive Canadian maple track in the event of a chris crash.

Fair enough, I just wondered why HH have that rule too as it's outdoors, I guessed it would prob spaff up an indoor track, but couldn't really understand why it was a big deal on outdoors tracks given that any wheel could drop out, it's just down to whether the part fails or isn't tight enough [or gets A-wanged.]