ALPINESTARS Speedforce Shoes - Black - US 10.5 2654321-10-10.5 4" Slip-on Muffler This exhaust system was developed

This exhaust system was developed using the same technology that has powered the Graves Racing Team and supported racers to 31 Professional AMA National Championships including 9 Superbike Championship titles and 3 Pro Side x Side

mid pipe and end-cap

anatomically redesigned medial and lateral torsion arms

Alpinestars patented third and fourth finger bridge prevents finger roll separation in the event of a slide

5 db at Idle / 91 db at 5000 rpm

ALPINESTARS Speedforce Shoes - Black - US 10.5 2654321-10-10.5 4" Slip-on Muffler This exhaust system was developedMatryx is a strong material that is extremely abrasion and tear resistant, lightweight and is fully customizable in both weight and thickness, allowing it to be modified to best suit the different positions on the shoe. High cut design with engineered ankle protection incorporating multi layer ergonomic ankle support including impact protection dual density medial and lateral TPU disks TPF (Transversal Protection Frame) technology using forefoot front