I used to get this when wearing my Gaerne GP1 boots. I could manage 3-4 laps before I could barely move my feet. I ended up switching boots and haven't had the issue as much now.

From what I could tell, my feet were starving for blood and oxygen. The boots were very constricting, being tight over my leathers, combined with a pretty extreme leg angle being 6'3" on a Gixxer 600 with high rearsets, and then the constant flexing your legs are doing. Best I could describe it like when you were in school and would grip your forearm really tight and pump your fist to make your veins bulge out, after a bit you can't even move your hand.

I'm using the Alpinestars S-MX Plus now and they've done me pretty well.

Quote Originally Posted by KANGA View Post
So I ended up raising my rearsets and bringing them all the way back to the furthest back position and it seems to have fixed the ankle problems. Even finished an entire session yesterday!
Ah awesome to hear man!