One of the biggest factors is your riding style. If you are riding in the city with lots of stop-n-go, 35 mpg isn't that bad. If you cruise along nice countryside roads, that's a completely different story, where I would expect around 50 mpg. Also, you may easily see 10% lower mpg during colder months compared to the nice warm summer days
Counter Balance Adjuster
- Thread starter aniwack
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aniwack
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35 mpg in Atlanta. Your alive and well complaining about 35 mpg in that shiat...Smh
A top box is the box that sits on the luggage carrier behind the pillion. Many have a back rest for the passenger.
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aniwack
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Don't have one. PoPo Edition.
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aniwack
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ST Gui
240Robert
I'd be surprised if you found any notable difference in MPG unless you regularly see 70mps or more for most of a tank of gas. It'll be interesting to see your results.
It's only an assumption on my part but I'd think the speedo and odo would be pretty spot on with an STP. Typical court testimony is 'I paced the defendant for X miles at X mph...'. The flip side is while there's usually evidence of the speedo's calibration I've never known anyone to challenge the stated distance or demand documentation of the odo's accuracy.
And a ? for all you Tom Tom/Garmin/Chinavasion users- do any of those devices track total milage from Point A to Point B? And Z, if necessary? Just curious as that could affirm an odo's accuracy or just used in its place.
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aniwack
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YES!!Am I gonna have to fly back to Georgia again for another Mini Tech Event at Vinny's?
Andrew Shadow
Site Supporter
Yes. They have an odometer as well as at least one trip meter all of which are resettable at any time.
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aniwack
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The conversation continues on https://www.st-owners.com/forums/threads/09pa-brakes-grabbing.170934/
SteveST1300
Vendor
I have large round LED's on my 03 they had no effect on my milege see my avatar
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bdalameda
PaleoCyclist
I really can't see your lights in your Avatar - I can say it really depends on where the lights are mounted. Most people install the lights below the fairing and the drag is a lot less as the lights are in front of the fairing, radiator etc. and get lost in the frontal area of the bike itself. Mounting the lights above the mirrors in the direct airflow over the mirrors, fairings etc. adds directly to the frontal area of the bike and in essence have an effect like a large flat plate or perhaps much larger windscreen being pushed through the air. I'm not sure how much this affects the fuel mileage - it may not by much or it could by 1-2 mpg.
SteveST1300
Vendor
I added a better picture to my last post as I said I haven't seen any decrease in MPG due to the lights.
wjbertrand
Ventura Highway
Running around on an under inflated rear tire on my old 1100, I was surprised how big an effect it had on fuel mileage, -10 MPGs! I was worrying why it was so poor all of the sudden. Later it became obvious that I had a rear puncture. After fixing that the mileage returned to normal with the next fill up.
bdalameda
PaleoCyclist
Years ago I installed rather large HID lights on my St under the mirrors. Later I found plastic domes to fit on the lights as I was concerned about the drag at higher speeds. I noted an immediate approximately 1.5 MPG increase in fuel mileage with the domes installed over the flat lights. The lights were about 5-6 inches in diameter.
bdalameda
PaleoCyclist
I calculated to push two 5" diameter flat plates at 70mph the hp requirement would be approx. 7.5 hp. So if you had 100hp you would be giving up about 7.5% to drag at 70mph. Double the speed and the drag increases by 4X.
Lots of suggestions and theories here. I would keep it simple by checking a few things. Have you always gotten this mpg, or is this a new thing? If you didn't change your riding style and mpgs dropped significantly, there is something wrong. If this has always been an issue, go fill the tank and take a nice countryside 2 hour ride where you cruise along in 5th most of the time. When you come back, fill the tank again and calculate the mpg. If it's above 45 mpg I would not worry much about this as you can link the low mpg to the stop-n-go city driving.
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aniwack
Site Supporter
The issue was with no riding style changes the mileage kept dropping. If you switch over to the brake thread that I linked to, we determined the rear brake was sticking and not fully releasing. The line pressure was causing the front right to lock. The SMC is functioning correctly. The fault was further narrowed down to the rear caliper sub assembly becoming bent from the last SMC failure And the pistons becoming gummed up.
