wheel center: polypropylene grey
bearing: roller bearing
threadguard: small metal threadguard
galvanized sheet steel housing, screwing by plate with hole pattern 80/77 x 60 mm, housing with material strength 2.0 mm (fitting) and 2.0 mm (fork), clearance between the fork 52 mm, wheel rim made of polypropylene with a tread made of thermoplastic rubber (85 ° Shore A) grey colored, hub width 50 mm, roller bearing, screwed wheel axle (incl. all axle material).