RR 521 An unexpected rocky section on your route? No problem with this rim! Looking for bombproof rims for your gravel or cyclocross bike? Our new RR 521 rim has some compelling features. With a 32 mm rim depth and a 20 mm rim width, it would certainly have fallen into the Cross Country category a few years ago. But today, this model is a fantastic opportunity to expand your road bike’s range of use.
