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My MPG stays at 68mpg for the past month i wonder what is wrong with my bike. The first month i got 75mpg avg but after breakin it drops to 68 no matter how i ride it.
 

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77.5 miles/ .845 gallons US = 91.7 mpgUS
New longer gearing but pouring rain on the way home. One round trip only as the weather looks iffy for the rest of the week (winter) and I wanted to at least get an idea what the new gearing will do. It looks promising.
Holy smokes, that is a nice change. I don't expect you short filled the tank. Gonna have to sign me up for one of those sprockets!
 

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Holy smokes, that is a nice change. I don't expect you short filled the tank. Gonna have to sign me up for one of those sprockets!
Accuracy is less with only 78 miles but that at least gives us a ball park indication that it is indeed an improvement in fuel economy for highway travelers to go with longer gearing. Joe racer types and wheelie artists will want to stick with the shorter gearing. I may try another step longer still since I never ride two up but I think most people would start to find first a little too easy to stall like that.
 

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77.5 miles/ .845 gallons US = 91.7 mpgUS
New longer gearing but pouring rain on the way home. One round trip only as the weather looks iffy for the rest of the week (winter) and I wanted to at least get an idea what the new gearing will do. It looks promising.
Ok, I am convinced. I thought 80mpg is good. Now I need to change the front sprocket for even better mileage!

Cheers,
 

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are they redoing the 15t or will the ones already made work with no wear problems either on the shaft or anywhere else?
id like to get one as soon as possible.
i'll be riding all winter.76 here right now:)
 

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are they redoing the 15t or will the ones already made work with no wear problems either on the shaft or anywhere else?
id like to get one as soon as possible.
i'll be riding all winter.76 here right now:)
I am going to keep mine on and look for wear occasionally. I don't think it will wear the shaft but don't know for sure as it is a bit looser than stock. He is going to make some tighter sprockets eventually but this project is a small side line for him apparently so I don't expect anything for 3-4 months. Call Superior sprockets at 541 347 7262 and tell him you are willing to try it even though it might wear. He has several 15T just sitting there. You may as well grab one.
 

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exellent,thanks:)
just called him,he is going to have a bunch of the 15t with tighter tolerances in a month.
he said just call in the middle of Jan and i 'll can get one that is a perfect fit.
Good to know. Time for a group buy!!!

Cheers,
 

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First fillup. (Running in)
=3.57 litres per 100km.

2nd fillup. (Running in)
=3.5 litres per 100km.

3rd fillup.
=3.97 litres per 100km

4th fillup.
=3.97 litres per 100km

5th Fillup (Akrapovic fitted)
=4.19 litres per 100km

6th Fillup
=4.19 litres per 100km (open road blasting)

7th Fillup (Shadowing learner rider)
=3.27 litres per 100km

8th Fillup
=3.026 litres per 100km (riding like an old woman just round town)

9th Fillup
= 3.66 litres per 100km

10th Fillup
= 4.19 litres per 100km (flat out all the way for 250km)

So... moral of the story is 4.19 litres /100km is the most I can use because Ive got this exact same figure 3 times.
I must try harder.
Update

283.6km/10.19 litres
= 3.59 litres per 100km

123.3km/6.04 litres
= 4.90 litres per 100km (Trackday 65 laps, 1.9km circuit, Premium 98RON)

232.7km/9.47 litres
= 4.07 litres per 100km (140-150kph rural backroads non stop, Premium 95RON)

257km/10.14 litres
= 3.95 litres per 100km (120kph highway + freeway to city Regular 91RON)

190.9km/7.08 litres
= 3.71 litres per 100km (100kph night riding freeway, Premium 95RON)

403.2km/19.04 litres (Ran right out of fuel at 259.1km. lucky to have got help xmas day, thus combining 2 fills)
= 4.72 litres per 100km (Throttle pinned all the way @ 150 uphill-163kph downhill till the headwind had me doing 152 flat chat.. even tucked)

* = 49.8335982 USmpg.



 

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Aufit.

i getting the same 4-4.6 liter per 100 km as you.
i weight 130 kg and ride at 120km/h in tuck.
hope after the first service i will get better fuel economy
 

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I always letting the engine to warm up in idle to 3 bars before i ride so i guess there is the extra fuel
Idling to warm-up isn't the best idea.

You're better to start it, get your gear on, and take off. Just shift at low RPMs until it's up to temp - as usual.

It's going to warm-up faster, use less fuel, and contaminate the oil with unburned fuel and acids less.

If you are looking for maximum mileage, especially in cold temps, using an oil with the lower viscosity rating when cold ("W" rating) will help. Not sure if someone like Motul makes a 5W-30 synthetic cycle oil, but that would increase mileage. Most noticeably in cold temps, but it also helps year-round. Low viscosity oils significantly reduce wear at start-up in cold temps as well.


Jay
 
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