Bike Gear Calculator

Needs info upgrades, as sprockets just went up to 50t :))

Great app. No adds! Easy to use and it helps compare different setups. It also includes any wheel and tyre size into the calculations

When you programed that size, I''ll give 5 stars!

Been looking for this. In the mid 70's it was all paper chart. I'm back and my how things have changed. Excellent app that allows you and everyone you share with to know whether you're a diesel or a dink. Diesel is back! Hey 20 somethings, at routine 80+- inches and 72+- cadence you want none of the old man and this app proves what map my ride already knows.

Usefull but not up to date with todays standards. Manually having to add common setups is not really an option/fix. Not only that but many tire circumferences are wrong, for example, its shows that a 26x2.25 tire is bigger than a 2.4 one...

Should go up to at least a 45t cog and add 27.5" tire options. Would get 5 stars then.

Amazing app. Thought about something like this years ago, when I was making gear tables in ms excel :P . Very well made. Thanks a million and keep up the good work

This app is the best in the play store right now, but I'd like to have more than 3 front rings in the chart. That way i could have my full array of track gearing in one spot

Saves time wasted through a lot of headache and manual calculation.

Trying to figure out cassette range? Then look no further. Excellent app. Would like to see the addition of higher rear cassette cogs ie 42 with the advent of the 1x options in gravel and cx bikes

Like another reviewer, I was surprised the crank length doesn't make a difference in speed when cadence remains the same. Very helpful.

This is just great if you're into all the geeky technicalities of cycling. Just brilliant!

This GUI is very intuitive and well thought-through. It has helped me to make enjoyable and quick training decisions. Thank you!

Good to have this atleast now I know how fast I run in my style of cycling. And you can have the estimated time. Perfect :) <(")

Needs more sprockets. MTB go up to 50 in the rear now

I ride a fixed gear bike & singlespeed mtb & change gearing to suit terrain, objective, distance, speed of riding buddies etc. This app is invaluable to me. I use it a lot. It's easy to use, looks great & works perfectly. Marvelous. Many thanks to the developers.

edit :left to right, pixel titles on the phone screen, the gears would be on the otherside of the bike if you was looking at it the same way

If I had a bike right now, the tires would be at least 42"'inches. The chart calculator does'nt count that high. Perhaps I was just looking for a veiwer to see where all the Appropriate bicycles parts are at. Why not? Every bicycle on the retail market is a mechanical failure. So is this app.

You can add /remove sprocket sizes from the options menu, same with chain ring sizes so no issues with MTB 1x gearing.

Beautiful in its simplicity of use. No faults, bugs, idiosyncrasies! If only all apps were this good!

New bike shopping ..Allowed me to compare chainring sprocket sizes to compare speeds for my cadence!

Modern MTB gearing use sprockets upto 44 teeth! Please update for real modern use on 1x11 drive trains!!!

Great app. Except now I have a 42 tooth cog on my 11 speed cassette and 27.5 x 2.35/2.4 tires and can't use the app anymore. Sorry guys.

Only requests I would make would be the ability to click the lower center part of the first screen to cycle between ratio and gear inches (and whatever other metrics people might care about) and the ability to copy a bike profile on the third tab do I could compare a small change without having to type in every cassette cog again.

When you programed that size, I''ll give 5 stars!

Excellent and user frieny. Helps you understand on the spot what ratios you have.

Excellent tool, very easy to use. Great for novice to expert!

Lets improve your cadence n power..

Saves a lot of effort and guess work. Great little app!

Its nice yo have up to 42 teeth rear sprockets included on the next update for mountain bikes

Trying to figure out cassette range? Then look no further. Excellent app? Would like to see the addition of higher rear cassette cogs ie 42 with the advent of the 1x options in gravel and cx bikes

But need updates for 27.5 mtb wheels

It only reaches up to 40 for the cassette. Useless for new mountain bikes

Saves so much time working out different gear combinations

It helped me figure ballpark cadence.

Great app! Takes the guesswork out of front /rear sprocket combinations. Interface is exceptionally slick.

So handy and useful once setup on my moto g. You can select variants that apply to you and not even see the rest, and the multiple gear charts you can make are great if you have 6 bikes to set up. Well recommended. 5 star.

I was looking to change the big ring on my new bike and I found this tool. It allowed me to experiment with a variety of options until I found exactly the size I needed.

This app is so well put together. Its a breeze to use and really slick. Great for checking out how a different cassette will affect my speed. Love it.

Cool app, I used ink & paper in the past, just right 4 me.