Yup. Normal stuff.
Believe it or not, motorcycle engines are not made from Ming metal and unicorn foreskins. They're made from the exact same stuff and the antifreeze faces the exact same temperatures and conditions as every four-wheeled vehicle.
To be specific, I usually use Prestone Extended life. It's in the yellow bottle in premixed and mix-it-yerdamself flavors. Cheap-ish, available absolutely everywhere, and meets all the "silicate-free" and "other stuff-free" specs. The one downside is that it's a pale yellow, so you have to find a flashlight and squint for an extra half second to see the stuff in the reservoir.
Or if you hate money, you could cough up $45 for a few quarts of the Official Suzuki greenish blue juice. It's a cool color, anyway.
Drain and refill every two years or so, and you're golden.
2002 Suzuki DL1000 V-Strom, Dark Metallic Space Blue
1983 Suzuki GS850G, Cosmic Blue
2005 KLR685, Aztec Red - Turd II.2, the ReReTurdening