Rail: Nack (7 x 9,3 mm) o TiroX (7 mm). - Rail: Nack (7 x 9.3 mm) or TiroX (7 mm). The Prologo NDR range is enriched with the new Scratch NDR PAS, the open version of the iconic T-shape model. All models in the NDR line feature special graphics designed to improve on-saddle stability both during the push phase and when descending.
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