We've given the original fat bike rear fender a facelift! The Mud Shovel 6.5 Rear Fender was designed specifically for fat bikes - they're extra long and wide to block the muck, snow or sand you'll ride through on your next fat bike adventure. Made of heavy-duty polymer, the Mud Shovel 6.5 Rear Fender is super lightweight but sturdy enough to take years of bad weather abuse. The rear fender mounts in seconds to your seatpost for easy on/off depending on riding and weather conditions.