Thanks It's a 2010 Stevens Strada 600. Comes stock with a flat handlebar and full Shimano Tiagra drivetrain including Mavic CXP-22 road wheels with Tiagra hubs. The Stevens Strada series could be considered flat bar road bikes in the vein of the Trek FX series, for example.

Shifters, derailleurs and cassete have been replaced with Shimano 105 for the conversion, the rest is stock Tiagra. The only Ultegra component is the chain