We used to run a 150/60-18 on our ZXR 250 race bike here in Japan, but have since swapped over to a 17" rear. While they were cheap and a great trackday tire, we were easily out-cornered by guys running Pirelli SuperCorsas.

Last year, I searched for hours looking for 090 18" tires from the US, and if they did advertise them online, they never had them in stock. They still have them in Japan, but some shops are finishing out their inventories and not ordering more.

Dana
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2016 Husqvarna 701SM
2021 Husqvarna FS450 supermoto
1995 NSR250r MC28