Pick the make and model of your bike and press "load presets". Change the value you wish in the "custom" row and then see what effect your changes have on your speed, revs, chain size....loads of things.
http://www.gearingcommander.com/
Thinking of changeing sprocket or tyre sizes?
Re: Thinking of changeing sprocket or tyre sizes?
Well done Rich, this makes gearing for the drag strip easier!
All I have to do now is work out whether it's worth crossing the line in third or fourth- less wasted time on a gear change vs. better acceleration......
Mmmmm. I feel a run what you brung day coming on
All I have to do now is work out whether it's worth crossing the line in third or fourth- less wasted time on a gear change vs. better acceleration......
Mmmmm. I feel a run what you brung day coming on

It's not falling off, it's an upgrade opportunity.