With a long and distinguished pedigree, the latest Sustain FI series is just loaded with high-end, high-performance features. Hows this for a lineup: Aluminium Hagane G Free Body, Hagane Gears, X-Ship, AR-C spool, Magnumlite Rotor, One Piece Bail, X Protect saltwater protection, and eight SA-RB bearings plus one roller bearing across four models from 2500 to 5000 sizes, including two compact models.