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iThings: iGear Calculator Iphone/Ipad App

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Honestly, for most cyclists, knowing the actual gear inch ratio of every one of your gear combinations is a good recipe for overkill. To the true cycling geek however, you can never have too much information. If you’re one of the latter, take a look at this iGear calculator app for all Apple devices.

iGear is a free app that allows you to input your exact drive train specifications to figure out your exact gear ratios. Whether you’re wanting to build a custom cassette for your road bike, or wanting to see how different chainrings will affect your XX1 drivetrain the app has you covered. There is also an iGear Pro app available for $0.99 that includes the ability to compare two different drive trains on the same screen for the iPad app and more built in cassettes.

Check out the rest of the screen shots after the break.

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14 Comments
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Aaron
Aaron
10 years ago

Cool. Bring it to Android.

Steve
10 years ago

+1 for Android.

r1Gel
r1Gel
10 years ago

Yes, Android version please.

Anonymous
Anonymous
10 years ago

This is dead easy to do yourself if you use Excel.

bin judgin
bin judgin
10 years ago

yes now i can know what unfortunately low gear i’m shaming my bike with!!

Dave
10 years ago

There are a few “gear ratio” apps on Google Play already but maybe not as polished as this version. “Gear Ratio Calculator Free” is a good place to start but you need the paid version to allow you to add new cogs and cassettes.

Jeremy
Jeremy
10 years ago

Doesn’t work on my iPhone 5. I cannot choose a road wheel and I cannot add a new cassette or input any drivetrain spec.

edubfromktown
edubfromktown
10 years ago

Yeh – I have a spreadsheet for most purposes but this is cool!

Luis
Luis
10 years ago

Sorry, the database is corrupted. If you wanna add some cassette, you’ll have to erase the database and then add the new one. Temporary fix until I upload a new and corrected version.

James S
James S
10 years ago

It makes me sad that people can’t even calculate gear ratios without an “app”. Gear inches is also a super easy calculation: it is just the diameter of the wheel multiplied by the gear ratio. (Which is really an archaic idea anyway since it would make more sense to multiply by the circumference which would give you the distance traveled with each revolution of the crank).

Luis
Luis
10 years ago

Database fixed!

Irela
Irela
9 years ago

The application it not aviable on the store.

Luis
Luis
9 years ago

You can’t download the free version anymore. Screen captures shows paid app, available here: https://itunes.apple.com/us/app/igearpro/id593011453?l=es&ls=1&mt=8

In a few days I’ll upload the Android version.

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