picureAt idle after about 5 minutes, the exhaust on the 1290 superduke turns cherry red. Completely factory exhaust. I believe what happens is that the SAS opens the valve and allows air to enter the exhaust port to aid in heating up the cats for emission control. Just curious if other owners have noticed this as well on other bikes. via /r/motorcycles https://www.reddit.com/r/motorcycles/comments/ce8e6g/exhaust_turns_cherry_red/?utm_source=ifttt
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