Fatliner Fat Bike Rack - BlackFat bikes come in all shapes and sizes, but that doesn't mean that Fat bike racks should do the same. We threw 80's blueprints (that everyone else copies) out the window and designed a rack that solves heel clearance and compatibility issues that arise when trying to install traditional racks on modern bicycles. Install a Streamliner Fatliner rack on almost any fat bike, and let your bike do the work for you. Construction: Hand welded, tubular 10. 2mm