Tension and guide pulley set CeramicSpeed for Campagnolo 11s Alloy 607 black (101686)

Campagnolo 11-speed rear derailleurs work better with our pulleys, which are a marked improvement over stock. Ours reduce frictional drag and increase bearing life. Less drag means more power transmitted to the rear wheel. CeramicSpeed Standard Ceramic Bearings - low friction, high durabilityBearing race material: hardened-steelCompatible with all 11-speed Campagnolo derailleurs, mechanical and electronic.Pulley material: aluminiumBearing type: 607In the box:2 x 11-tooth pulley wheels 4 x spacersCeramicSpeed Oil for Pulley Wheel Bearings, 15 ml dropper bottleSticker sheet RELATED TECHNICAL INFORMATION:CeramicSpeed Standard Ceramic Bearings - put more of your energy into forward motion by reducing frictional drag wherever you can. CeramicSpeed balls are 100% smoother and 15% harder than ceramic competition. The bearings last at least 3x longer than other bearings. Maintenance:Depending on the riding conditions it is recommended once a year to re-grease your CeramicSpeed Bearings.If used in very wet or muddy conditions, maintenance might be required more often.If high pressure washer is used, please do not point jet stream to any of bearings (headset, bottom bracket, wheel hub, full suspension links) as it may wash out the grease. The kits come with CeramicSpeed oil in a 15ml dropper bottle. The bearings come with oil in them already. The oil is to keep them running smoothly.