2PCS Bike Holder Easy Wheel Replacement for Brompton Rear Cargo Rack Assisting Parts

Features:
Made of high intensity Aluminum Alloy material, solid and lightweight.
Ball bearing structure more swimmingly, for better durability and smoother rolling.
Using flat type o-ring with bigger surface contact for greater stability.
Easy to install with M6 screw, comes with flat rubber ring for better protection from galling.
Great replacement for brompton folding bike, do not affect your normal riding.