wheel center: sheet steel galv. blue passivated
bearing: roller bearing
galvanized sheet steel housing, pivot bearing with a double ball race, screwing by plate with hole pattern 80/77 x 60 mm, housing with material strength 2.5 mm (fitting) and 2.0 mm (fork), clearance between the fork 42 mm, wheel rim made of galvanized and riveted sheet steel caps with a tread made of solid rubber (PAH Cat.3) grey colored, hub width 40 mm, roller bearing, screwed wheel axle (incl. all axle material).