1200 Reasons

Monday, April 25, 2016

April 2016, West Virginia

My stats from the on-board trip computer:

4/22/16, 47 mph, 49 mpg, 334.3 mi

4/23/16, 44 mph, 50 mpg, 361.8 mi

4/24/16, 51 mph, 51 mpg, 304.1 mi

GPS Trip: 981.08

From the gas and mileage record I get an average of 48.8 mpg. Here's the interesting thing tho', when I calculate the mileage fillup by fillup, the first two are 44.6 and 45.7 mpg; the remaining 5 average 49.6 mpg with a std dev of 2.13. Yup, I did the t-test. Even with so few data, the t-statistic is striking: -4.1 with a t-crit of 2.57 for 95% probability. What does that mean? There is a better than 99% probability that the data from the first 2 and last 5 are from two statistically distinct populations. The first 2 are miles ridden using fillups in PA: the previous Wawa fillup and the Sheetz fillup in Carlisle; the remaining 5 are from fillups south of the M-D line. Guess there's no question about ethanol in fuel in PA, huh?

Saturday, September 6, 2014

BMW Tires

I've been very lax in keeping the blog up to date recently due to time consumed at work. However, I finally retired the Michelin Pilot Road 3 rear tire this morning and took a moment to write up a tire use summary for the BMW:

R1 Conti Motion 2010 – 4/2/2011 5300 miles

R2 Michelin PR 1 4/2/11 – 4/13/12 6991 miles

R3 Michelin PR 2 4/13/12 – 3/9/13 7255 miles

R4 Michelin PR 2 10/17/12 – 9/18/13 3904 miles, saved with some tread remaining

R5 Michelin PR 3 9/18/13 – 9/6/14 5631 miles

R6 Conti Motion 6/12/14 - 1544 miles to date, my “new tire”

F0 Conti Motion 2010 – 6/1/2011 8593 miles

F1 Michelin PR 1 6/1/11 – 9/20/12 9088 miles

F2 Michelin PR 2 9/20/12 – 9/18/13 7005 miles, saved with some tread remaining

F3 Michelin PR 3 9/18/13 - 7175 miles to date

Here is the tread left on F2, a Pilot Road 2 with 7000 miles on it:

Here is the tread left on R4, a Pilot Road 2 with 3900 miles on it:

Here is the tread on R6, a Conti Motion with 1500 miles on it going back on the bike today:

Here is the tread on F3, a Pilot Road 3 with 7100 miles on it, still in service:

Of all these, I have liked the Pilot Road 3's the best. They give a very planted feel to the bike, especially on wet pavement. I just ordered a new set of Pilot Road 3's for $308.

Looks like I am getting something like 6000 miles on a rear tire which costs $175 and about 9000 miles on a front tire which costs $135. That works out to 2.9 cents per mile rear, 1.5 cents per mile front or 4.4 cents per mile total - our tire tax.

Saturday, May 3, 2014

April 25-27, 2014, Sistersville, WV

Day 1: April 25, 2014

GPS Track:	12 hr 5 min	Elapsed time
	9 hr 8 min	Riding Time
	407.6	Total miles
	44.6	MPH ave speed

GPS Odometer:	413.96	Miles
BMW Odometer:	421.9	Miles
	44	MPH Ave Speed
	46	MPG

Day 2: April 26, 2014

GPS Track:	9 hr 17 min	Elapsed time
	6 hr 33 min	Riding Time
	305.0	Total miles
	46.5	MPH ave speed

GPS Odometer:	727.29	Miles
	313.33	Miles today
BMW Odometer:	321.4	Miles
	48	MPH Ave Speed
	48	MPG

Day 3: April 27, 2014

GPS Track:	10 hr 11 min	Elapsed time
	7 hr 19 min	Riding Time
	413.8	Total miles
	56.4	MPH ave speed

GPS Odometer:	1143.32	Miles
	416.03	Miles today
BMW Odometer:	426.5	Miles
	56	MPH Ave Speed
	47	MPG

Gas Record: 47.1 MPG BWM

$4.08/gal for premium

Sunday, August 4, 2013

July 28, 2013

Gypsy Stats:
11 hrs 27 minutes
7 hrs 48 minutes
377.5 miles
48.4 mph

Beemer Stats:
390.9 miles
48 mph
47 mpg

Gas Record:
TBD miles
TBD mpg
$3.91/gal for premium

Working too many hours these days; if we waited for me to write commentary we would never get anything posted and I wanted to at least get the record of the route and the statistics up.

Good month, July; we got out on all four Sundays, going long on the 28th. Not to mention breakfast at Fay's with steak and eggs and the pumpkin pancke with real maple syrup special.