This new version of the Thunder boasts a formal waterproof rating of IPX5, the new MiniMotors folding clamp, comes stock with damper, Ey4 display system with app compatibility, and 60 watts of headlight power to ensure the path ahead is always lit. The motors have been completely redesigned for higher efficiency and more power. The brakes have been upgraded to the new Nutt 4 Piston braking system which features rigid calipers with an integrated cooling system.