Dunno about the new liquid-cooled bikes, but my oil/air cooled GSX-R based 1200 Bandit specifies SH/SG additive levels. That means bike-specific oils, whether in an exotic synthetic or not. I ran M-1 car oil in my NighthawkS (hardly a horsepower or torque-producing heavyweight, but @ 80 horses @ 10,500 RPM, no slouch either) instead of a motorcycle-specific oil and it cost me a stripped 2nd gear. The gears need the zinc levels of the old grades, and SM-rated HDEOs don't deliver, folks. Perhaps in a cruiser app where there's little in the way of rapid upshifting or downshifting, or even high-rpm riding, you can get away with it, but even if they specc'd an SM HDEO, in any potential sporting app, I'd still want the additive of the SG/SH oils for the gears myself, even on a cat-equipped bike. It's just good sense until someone can show me a gearset that doesn't need the the add-pack..