To control the high-performance spools of these reels, capable of reaching speeds up to 30,000 rpm, Magforce Z (called Magnofuge in Europe) applies smooth magnetic braking as the spool approaches maximum speed to prevent over run, backing off as the spool slows. The result is the spool starts and builds speed faster, then keeps spinning longer. And the amount of control is fully adjustable to meet varying conditions and your particular casting style. Features: Factory Super Tuned for optimum performance. Super Tuned machine cut spool-super-balanced, super-lightweight aluminum alloy. Carbon Swept Handle for reduced weight, maximum leverage and control. EVA double handle knob. Fast 5.8 to 1 retrieve picks up 28" per crank. High-grade brass drive gear and stainless steel pinion. Nine Ball bearings (8 CRBB) plus roller bearing. Rigid, one-piece aluminum frame. Smooth star-adjust drag. Advanced design, Super Tuned, Magforce-Z (known in Europe as Magnofuge).