ALPINESTARS SMX-S Boots - Black/White - US 11.5 / EU 46 2223517-12-46 DHH Certified Headlight Structural design from center towards

Structural design from center towards the outside provides the perfect balance between force dispersion and energy absorption

Fitment: Yamaha R1 2009-2014

When fitting this exhaust system it is advisable to optimize the carburetion by remapping the stock ECU unit or adopting an additional ECU unit

Chin plates on the front dissipate pressure of the helmet when impacting

ALPINESTARS SMX-S Boots - Black/White - US 11.5 / EU 46 2223517-12-46 DHH Certified Headlight Structural design from center towardsDurable microfiber upper construction that has superb flexibility and a comfortable feel Ergonomic new forefront boot shape is streamlined to better control and feel of the motorcycle controls Thermoplastic Polyurethane (TPU) shin plate protector is race developed for superior impact and abrasion resistance Lateral Thermoplastic Rubbery (TPR) injected ankle support construction provides superior comfort and impact resistance TPU double density ankle