Quote:

I think a point Soren is trying to make is that he feels his set-up may be more efficient at 4500 rpm, at a givin speed range, even though he might reduce engine rpm if he were to upshift into 5th gear.



That's right. For my set-up that is the range I have found it to be the most efficient/power range. Yes, most people have modded (is that a word) their bikes in some fashion or another (including me), so I am sure that everyone needs to find that place for their set-ups that they feel that they are getting the best performance/efficiency combination. So, for my bike if I can keep it constistantly running around 4500 rpm (no matter the gear or speed) that is where I believe I am getting the best performance/efficiency combination. I am running at an rpm that I feel that I am not lugging the motor and can almost instantly speed up if I need too.

BTW... my testing was based on about 175 miles of decent freeway riding. Stop and go commuter traffic is a killer on mpg. My mpg is also not as good when riding back country roads (but better than commuting).

One more thing... I usually try to base how an motor is running based off of RPM rather than speed, because that is how much the motor is actually working. Speed is more a result of the transmission and drive train. One of the reasons I don't like automatoc trasmissions is that you cant really control the efficiency and performance of the motor.

Soren

•Triumph Connection