Bike Tire Pressure Calc

This is a great app and I use it frequently to determine optimal tire pressures on my MTB and gravel. One recommendation is to switch the orientation of the bike and front vs rear tire. Most riders get on their bike from the left side, so I always picture the bike facing left, so front tire on the left and rear tire on the right, but the app shows opposite and can be confusing. Thanks for a great app though!

I’ve meticulously recorded my tire pressures for all types of riding conditions for my gravel, mountain, road, and fat bike riding. This app takes it to a whole new level with the ability to adjust for temperatures at time of inflation as well as when riding. The other fabulous feature is to adjust for the type of terrain you will be riding on. This will be game changing for optimizing tire pressures, particularly for mountain bike and fat bike riding – especially in winter conditions where there are big differences for inflation pressure versus actual riding pressures that are needed for colder temperatures. I look forward to not having to adjust or check tire pressures for winter fat bike riding out at the trail when I fill them up with air at home. Finally, be sure to measure the actual tire with in millimeters preferably (vs inches for greatest accuracy) as the sidewall measurements aren’t always close to manufacturer specifications given internal rim width and other factors.

If you ride in different conditions, have a few bikes that get frequent use, or change tires often (looking at you, cyclocross) this app is a game changer. You can store all of your bike setups so you don’t have to re-enter info each time, and the calculations it gives are pretty spot on given my testing against what I had been running. Wide rims with high volume tires mean a psi here or there makes a big difference, whether that’s on my gravel, MTB, or fat bike. Super happy and will keep using this for different riding conditions and various bikes.