Mad Dog Rear Hub & Disk Mount Bolt $4.50 Quantity discounts available QuantityPrice Quantity: -+ SKU: KK648 ABOUT THIS PRODUCT:Mad Dog Rear Hub & Disk Mount BoltAboutAboutDisc mount bolt for Mad Dog brake disc on rear wheel. 3/8-24 x 4" low head hex bolt. Secures the entire rear wheel together - connects sprocket, wheel and disc. PMW part # 1089. Fits GSR40 / GSR40-TS.