When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
When in doubt, check the owner's manual. The book's tablesays upshift to 6th at 65mph. Leave 6th on the way back down at 60mph.
Hmm ... the '08s must be different from the '07s ... my owner's manual says that the upshift (acceleration) is done "Fifth to sixth" at 55 mph (85kph) ... table 21 on page 78. The downshift (deceleration) is done from Sixth to fifth at 50mph.
For what it's worth, 55 seems to slow to me unless you're going at that speed for a distance. I won't say it "lugs" as much as it just seems to lope along. At a constant 55+ speed I think you'd be okay, but if I'm trying to accelerate to entera freeway or other high speed trafficway (60 and above) -- or if I'm going to pass a slower vehicle -- then I'll usually shift at 60 to 65 instead of 55, but that's on harder acceleration.
My dealer told me not to hit 6th until I was at 65 mph or I would lug it and that would be bad for the engine. I followed their advise for a while, but occasionally I lose count when I am coming up the gears. I have hit 6th at 55-60 mph, and have had no problems with lugging, and that is running stock.
About 60 for me, if I'm just loafing . It's just plain gutless at that speed and rpm, but downshift into 5th and it comes to life. 70 seems to be optimum,as it powers up nice and smootly. Ron
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.