Constructed from cast, heat treated, and hardened 17-4 stainless steel 57 mm wide, 90 mm long platform with aggressive tooth design for added grip Made for the aggressive rider Made in U.S.A. Spacers required for the 650/1200 BMW, PART # 1620-1124. Use OEM springs. Marca : MOOSE RACINGReferencia del fabricante : NDBMWAcabado base : CromadoAnchura : 57 mm (2-1/4")Color base : PlateadoColor/acabado : PlateadoLongitud : 90 mm (3-9/16")Material : Acero inoxidableModelo : ND SeriesNombre de producto : EstriberaUnidades : Pareja