There are actually some synthetics that have a high amount of friction modifiers that could lead to clutch slippage. You are not going to have a problem with any that are designed specifically for motorcycles.
From Mobil’s web site.
Okay. Let's start with Mobil 1 Racing 4T 10W-40. What does it offer that Mobil 1 for cars does not?
Mobil 1 Racing 4T 10W-40 is designed for sport bikes. Most of these bikes have multi-cylinder/multi-valve engines and use a common sump, which means the engine oil lubricates the engine, transmission and wet clutch. So unlike Mobil 1 for cars, Mobil 1 Racing 4T 10W-40 has no friction modifiers, which could lead to clutch slippage.
<span style='color:darkblue'>The motorcycle oil also has more phosphorus/zinc for enhanced wear protection at high engine speeds and high loads.
In addition, Mobil 1 Racing 4T 10W-40 uses different dispersant/detergent technology for better high-temperature performance and engine cleanliness. Mobil 1 Racing 4T 10W-40 is also offered in a different viscosity grade than Mobil 1 for passenger cars. (Updated September 2006) </span>
I have heard of several using automotive Mobil1 oils with success. However, I'll stick with the MXT-4
There are some many myths about synthetics out there.
If you are worried about you clutch, pull it down and replace the springs with new ones. You'll also want swap out some thin steels for thick to bring the total stack height to 1.98" to 2"