RockShox Fork Service Kit, Basic: BoXXer RC (2012-2016). Fits Boxxer. RockShox Basic Service Kits include dust seals, foam rings, o-ring seals. We are out East at 3063 Columbia Ave. - Lancaster PA, 17603 & out West at 3225 Grande Vista Dr. - Newbury Park, CA 91320 & 165 Design Place, #105 - Sparks, NV, 89441.