Used - for 18 months, just over 10K Km. Still in very good condition. Came off a Ribble Endurance SL R RIM BRAKE frame but is compatible with other frames. PLEASE CHECK BEFORE BUYING. Search " Ribble headset bearings" - they have an excellent article highlighting compatibility. BOTH TOP AND BOTTOM THE SAME Can't show this in the photographs but etched on the side is... XL | P16 (52 × 7 × 45°) Outer diameter 52mm Inner diameter 40mm Height 7mm ALL MEASURED WITH DIGITAL CALIPERS. Weight 61g (pair) Any questions please ask. Will post Royal Mail 2nd class untracked to keep costs down.
