Features: Material: aluminum alloy wheel frame with rubber external tire, for wear and durable performance. Lightweight: Full CNC machined with hollow design reduce wheel weight. Mudguard Bearing: Using big bearing for better durability and smoother rolling. Compatible: Suitable for brompton folding bike. Specifications: Material: aluminum alloy, rubber Color: black, red, gold, silver Size:about 5.5x4.2cm compatible: for Brompton Package included: 1pc x mudguard wheel
