stainless steel housing, pivot bearing with a double ball race, screwing by plate with hole pattern 48 / 39 x 48 / 39 mm, housing with material strength 1.80 mm (fitting) and 1.50 mm (fork), wheel rim made of polypropylene grey / tread made of thermopl. rubber 95° shore A grey, hub width 22 mm, plain bearing stainless steel, screwed wheel axle (incl. all axle material), without separate threadguard