Specialized Rear Rack Seat Collar Seatpost Black 31.6Mm

Add a rack to your frame, even if you don’t have rack mounts. Allows standard rack stays to be bolted directly to the seat collar, for a clean and simple look. Made from lightweight aluminum for durability, with threaded inserts to bolt the stays directly into the seat clamp.

Available in the following sizes: 29.8mm 31.6mm 31.8mm 32.6mm 34.9mm