'AGILIS' a latin word meaning light- Agile. This departure for ROTOR in as much as these are a standard format crank set, is designed to complement the Q-Rings. To be sold with or without Q-Rings or as a full package with the new Self aligning bottom bracket (SABB). Firstly the Hollow technology is achieved from a single billet and CNC machined with a new process without the need to cut the cranks, machine them, and weld back together like shimano. This retains rigidity, stiffness and ensures each crank is identical and uniform. The SABB is similar to Shimano with outboard bearings but with a clever barrelled shim on both sides externally, that takes up any misalignment from unfaced or damaged Bottom bracket apertures. Visit the shop to see the options available.