A GB650 from Honda would be a great rival to the Yamaha XSR700 and Kawasaki Z650RS.

"According to Japanese media outlet Autoby, the brand may have one more trick up its sleeve in the form of a GB750. As of now, the publication attributes such speculation to “rumors” of European origin. Those thin prospects didn’t stop Autoby from mocking up a digital render of the potential modern-classic, though."

"For several years, Yamaha and Kawasaki have already mined this nostalgic territory with the XSR700 and Z650RS, respectively. The bLU cRU based its neo-classic on its ever-popular MT-07 while the Green Team developed its retro roadster on the tried-and-true Z650. Honda could take the same route with a GB750 and the existing CB750 Hornet.

Regardless of its external competition, Honda has to assess the GB750’s potential to cannibalize other brand offerings. For instance, the CB650R already appeals to the vintage crowd with its neo-café aesthetics. However, an inline-four mill and its futuristic design cues may not attract the same demographic as a GB750."