[ On the Humvees the map sits behind my thigh and doesn’t impeed my pedal stroke especially if you cut the cardboard cover off the map.]
I tried that with my Singletracks – and wore through a goodly portion of a map. There’s no flap on the thigh pockets, so if you hit anything wet the map takes a beating. Odd design choice really, because I can’t see what else you’d want to store in those thigh pockets? Maps are a pain – the rear pocket on my Gridlock jacket is too small to take an OS map ‘flat’ – shame they couldn’t have made the pocket an inch or so wider.