How To Know If You Need New Bike Tires. Acceleration and braking is more effective as it puts stress on the tyre carcass which heats up the whole tyre, not just the bit touching the road. The most common options are 26in., 27.5in.
It happens to road tires and mountain bike tires alike. That means you’ll probably need a new rear tire long before you need a new front tire, so let’s talk tire rotation. You may have ridden to the store and back on your dusty old cruiser with cracked sidewalls just fine, but pairing cracks and over 80 psi of air pressure isn't a good combination.
