RAY PRO bicycle fork for leisure sports city bicycle, aluminum alloy lower leg + forged aluminum crown , 32mm stanchion , Air/ coil spring fork, center distance 120, the overall strength is better; the front fork outer tube has sufficient inner space and thicker tires. The tire wheel has a larger contact area with the ground and has more friction, which can adapt to more complex road conditions. Optional functions: hydraulic lock-out / mechanical lock-out / Preload adjust is more convenient to operate.