Just got the bike back from a SERT install and dyno tune. 5000 miles on the bike. Big sucker, true duals, V&H ovals. Got 37 MPG riding twisties 2 up. I don't lug my bike and I like to wind it up at times. In other words, I don't baby it.

 

On my daily commutes I usually average 40(better if i take it easy) and 45-47 or so if I'm on the highway running 60-70. Running about 60 with my cargo trailer in tow it does 42-43. The bike is a carburated stock displacement Roadglide.

 

average 41-43.. Hwy 46- 48

 

Somewhere between-I DON'T CARE and DAMN, I GOTTA STOP FOR GAS AGAIN?

 

2002 FLSTC 95ci SE-203 cams Kuryakyn hyper-charger and SuperTrapp slipons

Pulling the trailer over 10,000 miles -30 MPG

My other bike....

1994 FLSTC stage I, Kuryakyn hyper-charger and SE slipons

Pulling the trailer over 5,000 miles - 31 MPG

 

38-40 combination street/highway. It's a 2007 Ultra with stage 1 and SERT "only slightly enrichened" due to no tuning or dyno available within 3000 miles.

 

Roadglide 42mpg
Fatboy 40-45mpg

 

stage 2,203 cams,stock heads ,SE Pro slip-on's (98b's),K&N 0800,SE race tuner,39-42 mpg, stock with the 88ci 47-50 mpg, the mileage trade off was very worth the performance difference,bike runs alot better and not so hot like it was stock

 

I get a very predictable 41-43 mpg @ 75mph on the interstate. When I run 80 I will
drop down to 40mpg.

 

35mpg but I don't fart around trying to get the highest possible fuel mileage.