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WS6 C46 is a series of wheelsets built around carbon ISO 406 mm rims. They are available with three different hubs (rim and disc brake options) and two rim finishes.
WS5 C44 is a series of wheelsets built around carbon ISO 355 mm rims and Ridea HF2 hubs.
HF2 PARCA freehub is completely silent while coasting, providing quiet rides with instand engagement. HF1 and HF2 (non-PARCA) include the G72 ratchet mechanism present in Ridea road bike hubs.
These wheelsets are built with Ridea hubs specifically designed to fit Birdy bikes, but they may be also compatible with other brands that use the same OLD and hub system used by Birdy.
*More colors are available as a customization option.