Part Description Quantity Price 544020  axle adapter for rear wheel - screw on any valve caps to decorate your axle. Fits rear wheel axle size 3/8 x 24T  1 2 3 4 5 6 7 8 9 10 $4.99 Check mark below indicates compatibility of this part with FRAME size Custom 16" 20" 24" 26" Trike Chopper Packed √  √  √  √  √  √  √  pair