6 inch Spun Aluminum Wheel kit includes, 2 - 6 spun aluminum wheels, 2 - 6 inch calipers and 4-1/2 rotors, all lines and fittings, axles included 5/8 or 3/4. 5/8 precision ball bearings are 800 GVW, 3/4 precision ball bearings are 1100 GVW. To be run tubeless, but tubes may be used. Total weight per caliper, wheel, rotor and hub combined, 3-3/4 lbs. Sometimes this site can be slow to respond so please call us to order! 503-659-1234 M-F 8am-4pm Pacific Standard time