Exactly,Please explain what is in a "good motorcycle oil" that is not covered under the JASO MA. JASO MA means more than 'wet clutch compatible'.
Bear in mind, though, that irrespective of all the hype, bullshit, and advertising talk that appears on the outside of the bottle, in ads, or on websites, the only thing you really know about the oil is what is inside that little emblem on the back that list the spec the oil conforms to. Other words, like "4-Stroke", "Racing 4T", "V-Twin 4T" don't mean diddly. In fact, "V-Twin 4T" probably means it's ordinary engine oil.
The spec is the spec.
Oil. It's a marvel, it's a mystery.
If the V twin designation meant anything substantial, it would differentiate between air or liquid cooled and shared trans or separate trans.. There's a VAST difference between a Kawasaki or Honda V twin and a Harley.