The Mud Shovel 6.5 Rear Fender was designed specifically for fat bikes - they`re extra long and wide to block muck, snow or sand 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 Mounts in seconds to your seatpost for easy on/off 152.4mm wide and 571mm long (6` x 22.5`) Rear Fat Bike 6`x22.5` Polymer Black Mud Shovel 6.5 Rear 5`UPC/EAN/GTIN: 812938013508