Has anyone changed the gearing?

[rbike_imp]

Quote:The bottom line is that my CB1100 gets 3 more MPG at 70 MPH turning 3600 RPM with my new gears than it got turning 4000 RPM with the stock gears. Cheers.

Chip
Thanks for your details. I was going to run at max rpm in 3rd vs 5th on the interstate to get best mileage - small lol.

On diesels in my area of expertise, I design the systems to run at the peak of the torque curve which is somewhere near 65% max rpm, but only apx 25-30% of the max hp.

Like politics, one has to use the correct CONTROLLING variable in an equation or what they say may be 100% wrong. Many scenarios have many multiple variables and choosing the correct one(s) as the major input factor(s) is critical to a good proper decision.

Your reply to Chip came in after my post - First, I have no idea, but It may have to do with shifting, especially with automatic transmissions and their torque converter specifics. With manual transmissions, it should be nearly linear unless the computer module/epa get involved.