Alpinestars - STech "R" Vented Boots Bike-KTM 990 SM and SMR Outside Width/Base Outside Diameter (mm)

Outside Width/Base Outside Diameter (mm) 134

10" (25 cm) height of bag in top center

Special surface treatment for high corrosion protection and optimum fitting accuracy

Kymco stock paper filter: 122

Alpinestars - STech "R" Vented Boots Bike-KTM 990 SM and SMR Outside Width/Base Outside Diameter (mm)Almost every component of the Supertech R Vented Boot, Alpinestars definitive racing boot as worn by a roster of champions past and present, has undergone a rigorous program of upgrades to sharpen its performance features even further. Featuring extensive perforations throughout for maximum airflow, innovations derived using feedback from Alpinestars involvement in top flight racing include a newly redesigned front flex area, a redesigned rear bellow,