The Ass Savers Fendor Bendor Big gets the dirty job done. The all new attachment makes fitting without tools a breeze, to virtually every bike in just a few seconds.Key features:Easy to fit, no tools required Perfect for Gravel or MTBSuper lightweight, only 61 gramsLonglasting, durable materialsSuitable for tire widths between 32-55 mmUniversal fitWith the newly developed attachment construction, FENDOR BENDOR Big is now completely self supported and therefore possible to mount on bikes without the sideway support of the seat stays or the support of a brake bridge. You could also mount it above your caliper brake to avoid interference with the brake."...once I expect to do more wet gravel riding in the winter, it will get strapped back on the bike and left there until spring comes." Cory Benson, Bikerumor For the rough stuffIt has been developed for gravel and adventure biking but is also a great protector for CX and Mountain Bikes. With greater length and width, it's well suited for the longer wheelbase normally associated with this segment of bikes. A single midway fold still allows for convenient minimal storage but with maximum sturdiness for the rocky roads ahead.Frame protection by 3MBoth models come with upgraded frame protection stickers from 3M. A material originally developed to protect the helicopter propeller blades from the sand storms in the desert, it makes sure that no scratches will be made to your beloved bike by the FENDOR BENDOR.