Muc-Off's cream enables precise application of amino’s

Narrow/wide tooth profile designed to retain the chain without the need of a chain device

Top Cover -Low-friction upper bearing seal completely seals cup from contaminants and is fully captured by the top cover with no loose parts

but with even more grip

ride longer and rebuild your muscles stronger

PRO Sealed Cartridge Headset Top Assembly - ZS44-28.6 netsuite-webdata-created Muc-Off's cream enables precise applicationBuilding up a new ride or replacing a tired, worn out top assembly? PRO has you covered with their Sealed Cartridge headsets. These upper assemblies are the perfect combination of value and quality. With durable and replaceable cartridge bearings, you'll be covered for seasons of use. Please note: If you're unsure of the correct size, check your owner's manual or view our blog to learn how to identify the correct headset. Features: Double sealed