As an essential, he will also need an axle nut socket tool ( 55mm 12pts / 30mm- 6pts). Steel not aluminum.
He traded in a 1299 Panigale & SV650 for the SuperSport S so may have one that fits. I've one in the post.
I agree with his decision to trade. The 1299 Panigale is not a good street bike. Many are traded-in with next to no mileage. The 959 Panigale is a quantum leap better and even then, it can be an inferno at slow speed. Pani's are designed for speeds above the hwy limits or better yet, on the track. Then they really shine.
Finally got around to having a look, in fairness it was a lot more comprehensive than I thought it would be!