wheel center: aluminium
bearing: double ball bearing
galvanized sheet steel housing, pivot bearing with a double ball race, screwing by plate with hole pattern 105 x 84/76 mm, housing with material strength 6.0 mm (fitting) and 5.0 mm (fork), clearance between the fork 60 mm, wheel rim made of aluminium with a tread made of vulcanized elastic tyre (approx. 75° Shore A) grey colored, hub width 59 mm, double ball bearing, screwed wheel axle (incl. all axle material).