I'm running C12 in my race bike (HONDA RS125 2stroke GP bike)
Curious on VP Chambly price.
Before I used to buy them at: ocr gas bar in kahnawake(the one in the village)
they don't carry VP anymore but Sunoco product are the same.(at least for the C12 equivalent)
or I get it from the track tire service/vendor.(pricier, but hey they provide a great service right at the track)