The Shops 2015 Fat Bike is ready to rock! PEDAL... Fri, 11/21/2014 - 12:34 Just built up my customized 2015 Salsa Beargrease 1 Carbon Fat Bike. Sram X1 Build Kit Marge Lite rims 45NRTH Dillinger 5 120 TPI tires. YES THEY FIT!