What Our Gearhead(R) Experts Are Saying:"Fixing a flat on a fat bike mid-ride is a hassle, but the Fatty Object at least makes the inflation part easy. The oversized knob gives me enough grip to operate it confidently with winter gloves on, and the foam sleeve keeps the cartridge from freezing my hand during the fill."Why We Like ItMost CO2 inflators top out at 25g cartridges, which fall short on the volume a fat or plus-sized tire needs to reach rideable pressure. The Fatty Object accepts a 38g cartridge, so PSI isn't a problem.