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Mine runs 230-260 running around East Texas in August. Hottest I've ever seen it was 290 just below the summit of Pikes Peak. It didn't like the 20 mile slow speed, hard pull climb.
I understand those that said that they'd rather not know. I just use it for informational purposes. After a while you learn where it's going to be. Fun to watch. Amazing how much cooler the oil is if you get caught riding in the rain. Do you suppose there's something to water cooling???
HD tests these things in the Arizona desert. It's not going to get hotter than that where I ride.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.