well mine dropped to a low of 52 to 56, but once i'd sorted the cat out and fuel mod etc it went up to 60 and has remained there dispite the way i ride. 80 mph to work and back etc. if a take it easy it goes to 62 mpg.

just filled up on our mini trip. 55 mpg two up and fully loaded.

Mpg
 

I get 50mpg when riding short trips to work. I havent been able to do a long trip since i put the DNA filters fuel mod and pipe on. Should be going away next week so hopefully will get a good return .

Useful to know...

Best I have seen is 72.5mpg but I have rarely dropped below 65mpg except riding two-up on the motorway. Even then I got 58mpg over 245 miles, half of them m/way at - er - pressing on speed.

I have managed to eke over 90 miles out of the reserve ie. once the indicator bar starts flashing. Still had 1.5l left.

I get 240 miles to flashing thingy. What does that equate to?

about 340 miles before the bike splutters to a hault

i can sometimes get the flashing thingy, flashing at 140 miles woops

Depends how many litres it takes to fill up again. If its about 18 it works out to 60.
If you have a smart phone there is an app that you can download to work it out and store the info.

What formula are people using to work out these mpg`s ?

I use the app on my phone.

1) Fill up your bike and reset one of the trip counters.

2) Ride until you think you need fuel again

3) Fill up your bike again.

4) Make a note of the mileage on the trip counter.

5) Make a note of how many litres of fuel you put in the second time.

6) Divide (5) by 4.55 to work out how many gallons of fuel you put in.

7) Divide (4) by (6) to work out your miles/gallon figure.


The important/tricky bit is filling the tank up to the same level both times. Pick petrol stations with level forecourts, fill up with the bike upright, and stop when the level reaches the bottom of the inlet neck and that's about as good as you can do.

I've drilled the inlet piece to allow the air out for that last litre or so - works a treat, but you do need to ride it and not leave it for the fuel to pi55 out of the overflow!