Gear Inch Calc

It doesn't have everything Sheldon's site does. It allows you to choose from predefined parameters. You can't type any tooth count you want, or input crank length.

The way the app works is great, however, what is needed is the ability to added cog's in the range of SRAM eagle, i.e 10-50 and to display the results in Kph or Mph. Then it would be 5 starts for me.

Chain ring size only goes up to 53t - useless for track riders.

Easy to use, missing 9 tooth for bmx cassette hub calculations.

Yellow boxes pre-select things for me - for some reason.

MTB cassettes go up to 42T now and 46T cogs are on the way

Do you mind adding 27.5x2.4 tires as well as 38, 40 and 42 cogs? It will be 5 stars then? Great app!!

Easy to use and does the job. Would give 5 stars if the app was updated to cover the sizes for mtb 11 speed cassettes with a 42 rear cog.

One small issue, when I deselect all cogs, the fist one is auto selected, then you can't deselect it even after selecting the right ones. Still, perfect app for the job.

Calculates gear inches easily and quickly. Great

Needs update to include newest 11-40/42 cassettes

My Bug is the same as Micah's On an S4 and a Galaxy Note 3 Micah Paul Bug? The app is really useful but after I deselect the default chainring or cog input, either 20 or 11 are automatically selected and cannot be deselected. It would make things less confusing if it wasn't like that. Thank you.

Doesn't offer enough tire size options like 20x1.95, and crank size option which is also important.

Change the chain ring and 20 always ticks and can not be unticked

Excellent app with clear tabulated result of all gear ratios available. Would be nice to store results for different setups/bikes.

No 20t chsinring,

Only inches

Yellow boxes pre-select things for me - for some reason.

Great interface, multiple cog combos rocks

Nicely done! Looks good on the nexus 10 :)

Great for the fixed gear folks!

Yellow boxes pre-select things for me - for some reason.

Finally an app for tri riders. Could you go up to 56T for the chainrings, please?

Now I can geek out about bikes on all my geeky devices. Love it. Now I don't have to search all over the internet when I want to do a quick comparison of gearing. Easy interface; and the orange cog is rad!

The app is really useful but after I deselect the default chainring or cog input, either 20 or 11 are automatically selected and cannot be deselected. It would make things less confusing if it wasn't like that. Thank you.

I really like this calculator, very functional. It would be nice to be able to store the gearing set ups. Would be nice to have a rear cog pull-down of the popular cassette combo's similar to Sheldon Browns online gear inch calculator. Bottom line, good efficient app.

Sweet interface and lots of options. Thx for this app!

Only gear calculator on play store that can do multiple rings and cogs at once.

Elegant and effective. Good for race prep or fixie setup.

Awesome app. Easy to use and clear data.

just need to add 40t cog for the new xx1