Thank you very much for viewing. I'm sorry, but this product is not discounted. Immediate purchase is OK. Saturdays, Sundays, and holidays are closed. {GIVI (Givi) SHAD (Shad) and other aftermarket products} Rear box mounting bracket set, bolt diameter 8mm (bolt diameter 6mm is OK with the included washer) Rear box top case parts bolt nut bracket set universal type rear box base plate mounting set rear box mounting parts mounting kit rear box top case bike aluminum rear box aluminum carrier Bike Box (topcaseop-1) ◇Rear box mounting bracket set, bolt diameter 8mm (bolt diameter 6mm is OK with the included washer) Rear box top case parts bolt nut bracket set universal type rear box base plate mounting set rear box mounting parts mounting kit rear box top case bike bike box aluminum rear box aluminum carrier Bike Box ◇Bracket 31mm x 230mm 2 pieces, washer M6 outer diameter 24mm thickness 2.2mm 4 pieces Rear box top case bracket stay plate mounting Rear box parts screw set bolt nut parts top case parts metal fittings