Gear Calculator
- Thread starter john59
- Start date
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Thanks John. May be useful one day if I have to change my cogs and or chain rings. Can see how it works but not sure about some of the functionality. Only had a very quick look but why are some of the triangles greyed out in the top window and why does it jump about when you move the cursor around. Probably me being thick and just a bit tired 
- Location
- Shrewsbury, Shropshire
Looks nice but not as user friendly as I'd like - it keeps altering the info I've put in for no apparent reason. I'll stick to my paper calculations for the time being.
- Location
- The TerrorVortex
I use one I knocked up in Excel.
[/geek hat]
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cyberknight
As long as I breathe, I attack.
- Location
- Land of confusion
Helps you to work out how far per revoultion you will travel or how fast you can go at any given rpm with the gears you have.
You can also use them to work out gear ratios for a different geared bike, eg moving from a compact double with a 50/34 to a racing 53/39 you could work out waht gears you might need at the back to get you up hills etc for the same effort .
I use sheldon browns version....
http://sheldonbrown.com/gears/internal.html
http://www.sheldonbrown.com/gears/
For me an easier one to use.
For me an easier one to use.
Rohloff_Brompton_Rider
Formerly just_fixed
Jdratcliffe
Well-Known Member
- Location
- Redhill, Surrey
to answer your q's in order
the greyed out ones are chain at max strech so guess not "recommended" when you move the gears in the middle the triangles move to re calculate the chain step % and the speeds
srw
It's a bit more complicated than that...
Because it's not designed for your browser - it does the same thing for me on IE.
