Rim inner width: 20 mm. Rim width: 21mm. Rim height: 27mm. All front and rear wheel can be arbitrarily matched, including different axle size (E.g front 5x100 QR + rear 12x142 TA,or front 12x100 TA + rear 5x135 QR),different rim stiker color (E.g front BK/GY+ rear BK/BK) and different hub cassette body HG/XD, ( one choice from two ).
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