ALPINESTARS SMX-1 R v2 Boots - Black - US 11.5 / EU 46 2224521-10-46 GFX V2 Backpack 5" inch muffler bodies include

5" inch muffler bodies include a quiet baffle with additional silencing material

Reinforced thumb patches for durability and abrasion resistance

Stock DB @ Idle 80

Rims are treated with a 3-stage heat treatment process for added strength

some aftermarket signals (by moving the mounting position of the signal holders - custom mounting hole may apply)

ALPINESTARS SMX-1 R v2 Boots - Black - US 11.5 / EU 46 2224521-10-46 GFX V2 Backpack 5" inch muffler bodies includeA 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