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[Dracula]

On the Million Mile Monday ride, the first tank of gas, I got 51.5 miles per gallon!!  Granted, we were on country highways averaging somewhere around 60 miles per hour, one up, but I had no idea this bike would get that kind of mileage. 

09 SERG, Power Commander V, 2.25" Fullsacs and stock breather.

[FUZZNUTS]

Thats pretty good, I only get 36 to 38 mpg.........with a few mods like yours. But thats what I got before the mods. ................................................Fuzz

[greglyon]

i get 45-55 2 up doing 55-65
same set up as above

[roadking71865]

Only have 1000 miles on it but getting anywere from 36-40.  Fullsac 1.75, TTS, Big Sucker A/C & X-pipe B.

[GregKhougaz]

Here's a good thread to look at in case you've not seen:  HP /TQ =MPG (ALTERNATE OF DYNO SHEET POSTING)

I posted there some mileage info from a trip last April: 

I originally went with a HD heavy breather, Dynalink ecm upgrade and tune, drilled cat and 2" fullsac muff cores.  After lots of reading and discussion with Steve at Fullsac, I went with the Andrews 54 CAM and swapped out to a Cat-less header pipe.  Steve also recommended a thinner head gasket which I had installed for a (very) slight increase in compression.  After re-tune, the bike "mapped" at 106 HP and 116 ft lbs.  Best, it's a very flat torque curve with  over 105 ft lbs between 2,400 and 5,200 rpms and the 110 peak at 3,700.  ...

... I rode from Los Angeles to Lake Havasu with three other bikes mostly cruising at about 75 mph, also went through Kingman AZ, Boulder City and Laughlin, NV.  For the trip, I averaged about 47 mpg.

The other bikes (all with batwing fairings and lowers) were:

1.  2008 SEUC with ventilator a/c from my SERG, fullsac 2" cores, no cat and power commander,
2.  2010 Ultra LTD, with power commander and V&H Power duals and
3.  2006 or 7 Ultra with a 96"  (five gallon tank) with power commander high flow and Rinehart true duals

At each gas stop, about 165 miles, I would need about 3.5 gallons; the '08 about 4, the '10 about 4.2 and the Ultra 4.5-4.7.  We were all impressed by the more than a 10 mpg difference.  We did not race but the SERG certainly pulled harder up highway on ramps.  Have to think my set up was more efficient but also the SERG fairing is more aerodynamic.  I was the only one without lower fairings.  We all had tour paks.  Ride on. 

GK

[HDDOCFL]

On the Million Mile Monday ride, the first tank of gas, I got 51.5 miles per gallon!!  Granted, we were on country highways averaging somewhere around 60 miles per hour, one up, but I had no idea this bike would get that kind of mileage. 

09 SERG, Power Commander V, 2.25" Fullsacs and stock breather.

Do you have Catless head Pipe? and could you post your map on the Map page.?   Thanks Doc

[Dracula]

Catless pipe.  Don't have a map.  Fullsac mapped PCV and sent it to me...I plugged it in and away I went.