Speeder – Member
specialized have developed an offset rear for their premium disc road bike
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POSTED 9 MINUTES AGO # REPORT-POST[/quote]
“On a race bike with short chainstays, simply widening the hub would cause shifting issues to the point that Shimano and SRAM recommend chainstays of at least 420mm.
Specialized’s solution was to move the cassette inboard on the 135mm Roval hub, putting it where a cassette would normally sit in a frame on a 130mm hub. This provides the stiffness from most of the extra width and spoke triangulation of a 135mm hub and keeps the chainline within Shimano’s parameters while maintaining the short, 405mm chainstays that help give the Tarmac its immense rear-end stiffness and quick handling. “
bikeradar article
Typical big bike manufacturer, private ‘standards’.