From the manufacturer:

Built to fly! Ludwig is excited to release the new era of Speed Pedals for today’s drummers. Our top of the line bass drum pedal has more than just a new name. It’s been optimized extensively with the following features; improved beater with traditional Speed sizing and increased weight, improved heel with smooth action bearings, improved toe clamp to reduce hoop damage with secured grip, new ergonomic wing bolts and attached drum key, improved baseboard for added strength, orientation marks for easier cam adjustments, and anti-slip cam features for maximum stability. All with a new sleek look and design.