The Marwe 2N (left side) and 2O (right side) fork plates are suitable for Marwe 620XC Roller Skis. You need two fork plates (one left and one right side) for one wheel. The 2N/2O refers to the spare part number for this specific piece which is also found on the exploded view drawings that come with each pair of Marwe skis.
Frame mounting holes: 5mm
Axle mounting holes: 6mm
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