Hubs: bearings 2x4, 6 pawls, smooth, noise. Front 2 rear 4 bearings, 6 pawls. Fits for 16" 349 Folding bike (Hub axle system 74/112mm ( NOT 305 WHEELS), fit for brompton ,3sixty bikes. Suitable for brompton folding bike, use nut to fix rear wheel not require skewer. ).
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