The Pro2 range of hubs include a further development of Hopes proven ratchet mechanism. This features a one piece 7075 aluminium rotor body and pawl carrier. Four pawls engage into a twenty-four tooth steel ratchet which is fixed into the hub shell and is sealed with a frictionless, non contact labyrinth seal. The axle runs on four cartridge bearings. The hub shell is machined from a solid billet of 2014 T6 aluminium.
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