The CBR650F and CB650F have been popular additions to the range, and get both a little sharper and fruitier for 2017
The 649cc engine gets an extra 4bhp at peak, taking it up to perfectly useable 89.8bhp at 11,000rpm. The increase – which Honda say is most apparent from 5000rpm upwards – is due to new intake and exhaust flow management: shorter air intake funnels feed four 32mm throttle bores from a down-flow airbox (which itself draws through larger intake ducts) and in turn the side-swept CB400-aping 4-1 exhaust now employs a dual-pass internal structure (rather than triple-pass) in the muffler, reducing back pressure – before belching its gasses from a larger end can exit.