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Automatic bearing preload (QRM Auto) requires no adjustment and guarantees long-term durability
4” x ø3”
but it does give up some of that comfort to the Responsorium
YBN enters the 12sp arena with an ingenious design that excels in every performance category
POC Procen Air - Uranium Black Matt Readystock Automatic bearing preload (QRM Auto)(AS NZS 2063 APPROVED FOR USE IN AUSTRALIA) Optimised for speed, the Procen Air brings the speed benefits of a time trial helmet to performance road cycling, giving the comfort and ventilation needed for a stage race. Influenced by and shaped like POC time trial helmets, the smooth surface of the Procen Air cuts through the air with ease. Ventilation inspired by the Venturi effect provides cooling across the whole head, and the path that the air is