OldNewBikes Fahrrad Tretlager-Käfig Kugellager (2 Stück) mit 9 Kugeln 1/4" (6,35mm) : Amazon.de: Sport & Freizeit
sourcing map 60 pieces metal balls, steel balls, ball bearings made of stainless steel for bicycle wheels, replacement parts 3 mm : Amazon.de: Sports & Outdoors