Summer in Portland is best enjoyed on a great road (like Dutch Canyon!) and on a great bike. (Photo: Jonathan Maus/BikePortland) Note: This post is part of a paid promotional campaign with Bike Tires ...
These airless Metl tires are made from nitinol, a shape-memory alloy that ‘stretches like rubber but is strong like titanium.’ Warning: Kickstarter. These airless Metl tires are made from nitinol, a ...