The website autoby.jp posted photos of the next Yamaha “crossplane” family member, a parallel-twin engine. Like the three-cylinder found in the FZ-09, the parallel-twin will not technically feature a crossplane crankshaft, but will be considered part of the family by Yamaha, presumably because, like the engine block featured in the FZ-09, it will be a derivative of the R1 and feature the same bore. In any event, the displacement of the twin is unknown at this point, but it might be reasonable to suspect that it is 2/3 the displacement of the FZ-09, or 565 cc.
Carrying this assumption a bit further, this should be a very potent, and compact twin. Just looking at the published horsepower and torque figures for the FZ-09, one could expect a twin with the same bore and stroke to put out more than 45 foot/pounds of torque and 70 horsepower at the crank. It could form the basis for a very entertaining, light, simple and inexpensive twin. Stay tuned.