ALPINESTARS SMX-1 R v2 Boots - Black/White - US 12 / EU 47 2224521-12-47 Bionic Flex Knee Protectors The air induction system (AIS)

The air induction system (AIS) burns unburned exhaust gases by injecting fresh air (secondary air) into the exhaust port

Alpinestars GP-R protectors: shoulders and elbow

including license plate brackets

Titanium tubing and end-cap

and they provide a noticeable power boost across entire rpm range Full length

ALPINESTARS SMX-1 R v2 Boots - Black/White - US 12 / EU 47 2224521-12-47 Bionic Flex Knee Protectors The air induction system (AIS)A class leading, low cut performance riding boot, the SM 1 R v2 Vented Riding Shoe incorporates a host of technical innovations for improved levels of comfort, fit and durability. Constructed from a lightweight and abrasion resistant microfiber upper with extensive perforations for maximum airflow and breathability, the shoe is also equipped with strategically positioned TPU protectors for abrasion resistance in a key area. The SMX 1 R v2 Vented