Photograph of rider sitting on a Zenith Bi-Car motorcycle (number plate C-251), on a road in Christchurch, taken ca 1907-1910 by Steffano Webb
The Bi-Car (or Bicar) motorcycle, which incorporated hub-centre steering and rear suspension, was invented by a Mr Tooley, and built by the Zenith Motor Engineering Company, Surrey, England, between 1905 and 1907. This is a 1907 model, powered by a Fafnir engine.
Zenith Bi-Car motorcycle. Webb, Steffano, 1880?-1967 : Collection of negatives. Ref: 1/2-049622-G. Alexander Turnbull Library, Wellington, New Zealand.
http://natlib.govt.nz/reco