These are to a bicycle on the whole beautiful. Circuit is butter soft and is easy to operate. The disc brakes are good and strong. The hub dynamo is highly smooth- running and working fine. Negative points are the soft to screw in the handlebars and extensions to the saddle clamp (this is even broken when tightening). Here should just be replaced for safety reasons at 8.8 screws! Unfortunately, the bell has adopted after 2 days and dissolved into all items. All in all, after exchanging the lack of parts (about 10 parts exchange) a good wheel for road and dirt road. The price is ok.