Our best selling chainguide, for the CRF50, gets an update! The old design was one of the first products BBR made for the XR50. After nearly 20 years we're updating the design to perform better, last longer, and be a perfect compliment to our new swingarm designs. We've increased the thickness of the aluminum side plates and given it a modern look with see through cutouts. That allows for quickly clean out of crud - plus it looks like modern big-bike style chainguide. The side plates are anodized in black with a silver chamfer and the "BBR" logo is laser etched. Modern, dished flange-head bolts replace the button head allen bolts of the old design. HDPE plastic feeds the chain onto the rear sprocket to prevent tossing the chain. Tossed chains often result in broken engine cases - not to mention lost races.