The front wheel may be used as a standard qr or tx 15mm version and the rear wheel is exclusively for the qr standard hub forged and cnc machined lightweight alloy body specially designed to allow disc assembly compatible with the 6 bolt iso standard high precision grease filled sealed bearings guarantee long lasting protection and smoothness assembly and reassembly of the freewheel body is simple and quick facilitating regular maintenance cone adjustment is simple and can even be perfor