Is there a better chain guide available?
Fredette part no 01-013 (88-93 KX’s 91 93 KDX 250’s 89-93 RM’s & RMX’s) can be fitted, although you will get a stronger mount if you can make an adapter block and put a second hole in the swingarm. It also seems to benefit from a 1/16″ spacer alongside the upper nylon block. The chain guide also goes under White Bros part # 45-013.