From the mind of Ruben Alcantara, the Rotar headset is something quite unique. Aside from the precision bearings and the high rise integrated compression ring / spacer design for simplicity of set-up, and 6061 – T6 CNC machining throughout, the breakthrough and standout feature on this headset is the bottom race spacer that sits between the bottom bearing and the crown race on the fork, that not only cleans this area up a bunch, it also raises the front end, eliminating the need for as many stem spacers, but also lays your head-tube back just a little.
Perfect if you have a 75 degree (or other steep) headtube angle and wanted a slightly more stable geometry without changing your frame.
Can be used without lower spacer.
6061-T6 Aluminum CNC machined.
Integrated compression ring design.
Higher rise cup and bottom spacer design.
- Material: Full CNC machined 6016 T6 Alloy
- Top cap height: 12mm. (From top of bearing to top of cap)
- Riser height: 10mm.
- Weight: 86 g / 3 oz