16 ball bearings on FS model 13 on non FS reel Oversized roller bearing Twist Free Roller Mesh Tech Gearing Micro Line Lay Adjustment Slipper Stealth Clutch FS model weighs just 810gr, non FS weighs 670gr Gear ratio 4.2:1 on FS model, 4.5:1 on non FS reel Supplied with standard plus spare alloy continental spool inlays.