WSM Piston Kit 50-257-07K High-Performance Cylinder Sleeve Elongated lower back panel helps

Elongated lower back panel helps maintain fit while riding

The Q series features advanced engineering to precisely locate baffles and chambers to absorb sound

More aluminum surface area contacting caliper to transfer far more heat away

2" baffles come standard and they use a constant velocity design for improved performance Baffle also uses a high-density bonded e-glass sleeve and stainless steel mesh

WSM Piston Kit 50-257-07K High-Performance Cylinder Sleeve Elongated lower back panel helpsQuality and construction that meet or exceed OEM Feature improved E clip design Kits contain piston, rings, pin and clips Rings available separately