ALPINESTARS Tech 10 Acumen Boots - Black/Red - US 10 2010020-312-10 Backrest Insert high density carbon outer layer

high density carbon outer layer that improves strength and efficiency of energy dissipation over the shell Uni-directional carbon composite layer gives significantly greater radial strength around the shell

These do not replace the existing clamps

41") at gauge face

5" diameter muffler bodies taper to 4" at the front 4

ALPINESTARS Tech 10 Acumen Boots - Black/Red - US 10 2010020-312-10 Backrest Insert high density carbon outer layerInnovative, lightweight upper construction Tech 10 chassis combines advanced lightweight microfiber and impact and abrasion resistant Thermoplastic Polyurethane (TPU) shell Frontal protection features a dual closure system with an internal microfiber flap, plus hook and loop fasteners for a precise fit closure beneath the buckle giving greater, micro adjustable, precision which is convenient to operate Soft microfiber gaiter helps seal out excessive