I am eagerly awaiting the results of your test and I am glad that you have enough energy to switch out the gears in order to find out. The lazy people salute you. I can't find it now but some company that sells the up grade from 16/46 to 15/48 said that there was only a 6% change in speedo and odomotor reading. Someone on another post said they had a 15% change. I am fixing to change my front sprocket so I would like to know the results that you get. As far as the GPS is concerned, doesn't a GPS just tell you the distance point B is from point A? Example if you rode on a round track with a diamater of 1 mile which was 3.14 miles around the track wouldn't the GPS say that you travled 1 mile from point A even though you actually rode 3.14 miles because you stoped 1 mile from the starting point? It doesn't measure miles of elevation either does it?
Quote:
Originally Posted by jamesfz6
I was reading a thread this morning....
http://www.fz6-forum.com/forum/fz6-t...ar-ratios.html (Gear ratios)
This got me thinking about something. I have the 15tooth front and the 48tooth rear sprockets on my bike. I know the RPMs are a little higher but i wonder if they are as high as havblue said. I am not questioning your knowledge....i will just have nothing to do after work today... 
He said the RPMs are 400 or so off at speed. I am assuming that is 65mph. Also that the odometer is off. I know they both are off by some degree and i know we have asked these questions before about gear ratios and fuel milage. <(run on sentence)
What i will do is set my trip meter to 0.00 when i leave work. I will actually be starting from the parking lot entrance since some of you know i work at a car dealership and when we close at 3 they close the gates out front. I will get the mileage from my work to my house. I will also see what my RPMs are at 65mph. I have a friend i work with who will travel next to me in his civic to let me know when im at 65. Once i get home i will put the original sprockets back on and make the trip again. I will be sure to start from the same spot again so i get the same distance. Then i will record the same info i did the first time to see the difference.
I wont be able to post anyhting up till tomorrow or monday but i will let you guys know what i find out. |