Whether your joy comes from barreling downhill, or tearing up to the top, SRAM's X7 hubs will leave a smile on your face. An aluminum hubshell with machined flange grant the hubs a low weight without compromising durability. Tough cartridge bearings roll smooth for the long haul and strong steel axles hold up under pressure, just like you.
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.
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