Ergo Index Gear Bottom Washer - fits right and left Campagnolo Record and Chorus Ergo levers. Fits on the bottom of the Ergo Index Gear, just above the cartridge bearing or bushing. Stainless steel washer with an inside diameter of 9mm and a thickness of 1.2mm. Often lost during rebuilds because it tends to stick to the bottom of the old Ergo Index Gear.

EC-AT061