This dropout has an integrated ISO disc mount located above the seatstay. It is machined from 4130 stee; plate. The chainstay and seatstay tabs have a 58 degree included angle. The tabs are 5 mm thick, the dropout face and caliper mounting holes are the thickness of the stock material. It is chamfered 45 degrees x 1 mm around the outside profile and windows. The center of the axle to the center of the derailleur bolt is 1.180".
Item sold by pair.