Ratchet freehub bodies have a gloss finish and don't have a seal, as this is fixed on the hub shell. The Ratchet System was the first of this type for DT Swiss; used in the mid-range products like the 350 hubs.
The new standard for durability and price. - Patented Star-Ratchet system - Contact-free seals and high precision build guarantee smooth bearings - Press-fit end caps allow tool-free maintenance and conversion
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