The Testastretta L-twin engine surrenders a big chunk of cubage to Yamaha. It has 1,262 cc tucked absent in its beating heart, but Ducati's engine punches over its bodyweight.
The superbike-demonstrated Yamaha Chip https://flynngcwc166633.blognody.com/28803967/the-basic-principles-of-yamaha-150-vmax