Matching the Topeak DeFender FX is the Topeak DeFender RX for coverage from rear wheel splatter. This injection-molded nylon rear fender has a quick release seat post clamp, and an adjustable pivot behind the post to get the fender angle just right no matter what seat angle your bike has. A secondary pivot is on the front end of the fender to minimize lower splatter. The fender is 22" long by 4" wide by 6" tall. The weight is 200g.