Not for 20 years.
But I feel like I could still do it, I can still visualise what needs to be done in my mind.
There's another thread about learning framewhips, and it reminded me of the damage I did to my bike learning them.
I used to kick the frame round too quick at first, lean over too much, and the back wheel would slam into the ground before it did a full 360.
I miss this type of stuff, I'm still hoping to build a 'compromise' bike that's big enough for me but small enough to allow me to try some of the old moves.
