HO Panno Shock Kneeboard SeatHO Panno Shock Kneeboard Seat Going Big Never Felt So Good. The Pannoshock is an inflatable shock system that cushions massive airs and relieves pressure off ankles, knees, and lower back for effortless riding. It's compatible with any kneeboard on the market and the silicon seat grip will keep you locked into place no matter what pad you have. It pumps up super quick and weighs less than 500 grams so won't interrupt your ride. The PannoShock will