54 mpg
Road Captain
Joined: Oct 2006
Posts: 660
Likes: 4
From: Ft. Smith Arkansas
I get a consistent 44-47 Supertrapp SE, TV111 and Doherty PowerPacc at right above sea level on my recent trip out west in the elevations got over 50mpg with 3 tanks in the 55-57 mpg range fully packed riding at 70 mph. That with 87 octane all they had at several places, bike ran great just like the car less octane less power.
Last edited by SSJ; Aug 19, 2008 at 10:03 AM.
Ultimate HDF Member
Joined: Feb 2007
Posts: 7,663
Likes: 7
From: Northeast Ohio
It is possible to get the advertised mileage but conditions have to be just right. The higher the elevations, the better the mileage.
Even on my 120", I can get close to 50mpg at elevation, but real world is about 42mpg at 65-70mph here in northern Ohio and about 40-42 not on the interstate, but can also bring it all the way down to 32mpg if hammering on the throttle in town or running at 80+mph on the superslab in a headwind. I have found that the "10% ethanol added" does return about 2mpg less.
Even on my 120", I can get close to 50mpg at elevation, but real world is about 42mpg at 65-70mph here in northern Ohio and about 40-42 not on the interstate, but can also bring it all the way down to 32mpg if hammering on the throttle in town or running at 80+mph on the superslab in a headwind. I have found that the "10% ethanol added" does return about 2mpg less.
Advanced
Joined: Aug 2007
Posts: 90
Likes: 0
From: Texas
I have gotten between 37 and 38 MPG on just about every tank I have checked since I bought the bike. An "08 Ultra that is stock and running the XIED'S. I have 5500 miles on it and that is a combination of in town and highway riding both. Doesn't even seem to vary much even with my wife on the back.
Seasoned HDF Member
Joined: Oct 2006
Posts: 5,977
Likes: 85
From: Nevada
3100.
Stellar HDF Member
Joined: Nov 2005
Posts: 3,272
Likes: 83
From: Southern California
Modifications will effect that number heavily also. Pipes, stage 1, remap, cams, etc....it all has the potential to erode your mpg results.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
