Quote:
Originally Posted by Frank
I wouldn't go crazy with gearing changes, as has been mentioned riding 5 mph slower will have a bigger impact.
If you go down a couple of teeth on the rear sprocket you could probably just remove a link or two from your existing chain. I use this calculator which helps: https://www.rbracing-rsr.com/chainlength.html |
I want to go crazy! In my car I have to be careful what gear I am in below 45 mph, the bikes are usually much lower than that. I am already in 6th gear well below that. Shifting is not a problem for me, and I will gladly trade laziness for a 7th gear!
My riding is usually done in a group, and I’m not setting the speed. That being said, highway riding is usually 65-70 MPH
Quote:
Originally Posted by jkv357
Have you put in your info on Gearing Commander https://www.gearingcommander.com/ to see how much of a change it makes?
I've heard that Aerodynamics of Road Vehicles: From Fluid Mechanics to Vehicle Engineering Book by Wolf-Heinrich Hucho supports the other.
It may be different for different vehicles (cars, trucks, cycle), so there may not be one right answer. |
Yes, I use gearing commander all the time! My proposed 17/41 setup would be at 4111 RPM at 70 MPH, but I can’t seem to find a steel 41T rear. I may end up going 17/42 since I can find a 42T steel rear, and that would be 4211 RPM at 70 MPH. I also have hucho’s book, haven’t read it in a while though. Motorcycles are already highly overpowered and not geared tall, so I think I’m doing the right thing here. Considering the results I have gotten so far with ecomodder techniques, I will continue to be part of the low rpm high throttle crowd. SV650SF coming this weekend hopefully!