Hello to all so I had bought the Brock B1 in the above mentioned size and wants to put the rims on it soon and let them enter my question to all who know about it: how does it look with the rims I have to change now what about my bike runs or does it go so over Tüv and I bought the rims used and there was only a review for the T89 there, one of you knows if there is a part report for the B4 or if I have the It would be really good if someone could help me here because it will soon be time to put the summer rims on it and until then it has to be finished already many thanks to everyone.