Clean Pro Chain Tensioner...
Sealed bearing internal headset from Crewkerz.
This headset is only compatible with tapered headtube frames and tapered forks. The size is 1 1/8" top and 1.5" bottom.
Aluminium cups keep the overall weight of the headset down.
High quality sealed cartridge bearings keep the dirt and water out for longer, allowing the headset to stay smooth.
Supplied without top cap, star nut or bolt.