We were highly impressed with the Mucky Nutz Bender Fender, a simply designed mudguard that, in attaching to the fork crown, proved really effective at keeping mud out of your face. So news that they've followed it up with a rear mudguard reached us recently, we sat up and took notice.

The new Mucky Nutz Butt Fender follows the same principles of simplicity and affordability that made the Bender such a hit. As such it's made from the same grade of plastic and, unlike any other mudguard on the market, mounts to the saddle rails. Cleverly, there's no need for zip ties or Velcro fasteners, instead it simply clips into place.

A sample has just arrived in the post so seeing as we have some right soggy weather at the moment, it won't take too long to find out if the Butt Fender lives up to the high standards the Bender Fender set. For the weight weenies, it's just 19g on the scales – we can see it appealing to long distance marathon riders, who want a lightweight and low profile rear mudguard.

Full review soon...

The Butt Fender costs £6.90 and is available from muckynutz.com