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Thanks for the info, I thought my mileage was high on a recent trip along rural secondary roads with long stretches of 60 mph or less (55-60 mpg). My wife's Harley did not similarly benefit from reduced speeds, it got 50 mpg no matter the speed.I'm talking here about a real 70mph (76 indicated) as opposed to a real 75mph (82 indicated) with stock gearing although I noticed no significant difference when trying a 16T front sprocket.
In states with a 70mph speed limit, which I do, my fuel consumption is in the 40s with a touring windshield and luggage. I got a low of 44mpg and a high of 49mpg coming through Iowa with its 70mph speed limit. Also, oil consumption is practically non existent. Illinois's 65mph speed limit is only slightly better.
In 75mph states in the same configuration, including flat Nebraska, I got a low of 35mpg and a high of 40mpg and enough oil mist made it through the breather to require topping off every 1000 miles or so. There is an out of proportion price to pay for that extra 5mph.
Around home with a sport windshield and mixed street and highway traffic and an Interstate speed limit of 55mph, where I usually do 60mph, I get about 60mpg. Pushing the air out of the way takes a toll in mileage.
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