Replaceable Bicycle Tire

Serious cyclists will often swap back and forth between different tires, depending on the type of riding they plan on doing … and yes, getting those tires on and off of the rims is a hassle. That's why the reTyre system was developed, with its zip-on tire skins.

At the heart of the Norwegian-designed system is a set of 568-gram smooth-tread base tires that mount on the rims in the usual way, and stay on the bike full-time – they're not tubeless, although a tubeless version is in the works. These can be used on their own, for commuting or touring.

There are also, however, a variety of rubber "skins" that can be zippered on over top of the tires, each skin featuring a different type of tread. These can reportedly be installed or removed within seconds, they won't slide back and forth against the underlying base tire, and the zipper's tab gets locked in place once it's done up, so you won't have anyone saying "Psst, buddy, your tire's undone."