West Biking Bike Luggage Carrier Frame Mounted MTB Bicycle Touring Cargo Rack Fit Disc and V brake Rack Weight 2.1lb (950g), premium black paint Adjustable item, fit Disc and V brake bikes very well Easy to install, suitable for less than 33MM sit rod installation Size: Rack length 52 cm width13.5cm; Panel length 37cm width 13.5cm Load capacity marked within 10KG, actually can carry about 50KG, the actual depends on your sit stem strength.