1. Weight: 74 g 2. Specifications: Built-in 44 mm 3. Material: aluminum alloy 4. Suitable for modified models: For Dahon SP8, SP18, VP18, MUP8, JP8, BYA412, etc. 5. Features: beautiful and practical, built-in stainless steel bearing, flexible rotation, lightweight design, lubrication and wear resistance, simple installation, durable 6. Note: As long as it is a built-in 44mm modified folding bike, it can basically be used for Dahon
