Standard mounting hardware kits to adapt Ohlins rear shocks to most MTB frames. These kits are intended for use with IGUS bushings and are interchangeable with FOX rear shock mounting hardware. hlins, rear shock mounting hardware, 10 mm x 15 mm (10 mm diameter bolt hole and 15 mm wide)Intended for industry-standard 15 mm diameter eyelets, designed for use with IGUS bushings (Sold Separately)Includes 5 pieces: (1) Pin/Axle, (4) Centering stack spacers placed on either side of the eyelet, (2) Small O-rings to help seal off grit from the inside of the bushingItem SpecificationsBolt Mount Diameter10Frame Mount Width15 Ohlins Rear Shock Mounting Hardware Rear Shock Mount Kit UPC: 840153642029