wheel center: polypropylene grey
bearing: central ball bearing
threadguard: small nylon threadguard
galvanized sheet steel housing, screwing by plate with hole pattern 105 x 84/76 mm, housing with material strength 2.5 mm (fitting) and 2.5 mm (fork), clearance between the fork 60 mm, wheel rim made of polypropylene with a tread made of thermoplastic rubber (65 ° Shore A) grey colored, hub width 59 mm, central ball bearing, screwed wheel axle (incl. all axle material).