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Vos used XTR RT-99 rotors in a 140mm diameter. Marianne Vos' Ridley X-Night SL Disc, 2018 Jingle Cross World Cup. © Z. Schuster / Cyclocross Magazine

Vos used XTR RT-99 rotors in a 140mm diameter. Marianne Vos’ Ridley X-Night SL Disc, 2018 Jingle Cross World Cup. © Z. Schuster / Cyclocross Magazine undefined