54T planetary teeth. 30/35mm:outer: 22mm/inner: 18mm; 42mm,outer: 29mm/inner: 21mm. 30mm 1563g+3%, 35mm 1582g+3%, 42mm 2120g+3% (Weight does not include tirepad and QR). six holes and center lock version, straight pull type front two rear four Sealed bearing.
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