ALPINESTARS SMX-6 v2 Vented Boots - Black/Yellow - US 14 / EU 50 2223017-1550-50 Drive Belt Guard configured to balance the R3's

configured to balance the R3's body lines and produce the best balance of power

Combines the PowerPort Duals head pipe design and the famous Cobra Speedster blueprint for a sleek dual style with an extra kick Performs like a true 2-into-1 pipe with the clean look of a traditional dual system Broadens the low end and mid-range torque curve

2014-2018 Yamaha YZ 250 F - - 2014-2017 Yamaha YZ 450 F - -

absorbs up to 0

ALPINESTARS SMX-6 v2 Vented Boots - Black/Yellow - US 14 / EU 50 2223017-1550-50 Drive Belt Guard configured to balance the R3'sBoot upper incorporates an innovative front and rear bellows and rear calf zone for superior levels of flexibility Boot upper is constructed from microfiber for durability and abrasion resistance Ergonomic forefoot streamlining enables greater control of the bike's controls and provides a superior, wide ranging foot profile for excellent fit and comfort Thermoplastic Polyurethane (TPU) lateral ankle brace provides a biomechanical support between the