Spitfire Formula 4 - Big Beatdowns Skateboard Wheels - Classic - 99 Duro OPERA they combine a merino wool

they combine a merino wool blend with full terry cushioning

By flipping the kingpin upside down

The innovative Metal Slim Wall construction—a fusion of titanal metal and urethane along the board's edge—enhances dampening

15K/15K Waterproof & Breathable: With a PFAS-free membrane to keep you dry in all conditions

Spitfire Formula 4 - Big Beatdowns Skateboard Wheels - Classic - 99 Duro OPERA they combine a merino woolAThe Spitfire Big Beatdowns are oversized by design, built for skaters who prioritise speed, momentum, and stability over quick acceleration and flick. The large diameter carries speed exceptionally well through bowls, pools, and fast transition, helping smooth out rough concrete and maintain flow through long lines and corners. That added mass keeps the wheels planted at high speed, while the Classic shape delivers a predictable feel with a medium