The X-Guard is a universal downtube fender for any wheel size. It is attached using two straps on the lower bar (downtube), making it compatible with fat bikes and bicycles with oversized tires for all-around mud protection. It also protects E-MTB batteries from dirt, splashes and flying rocks. The straps are extra long and can be shortened as needed, making X-Guard suitable for any frame shape and all common battery models.