At least you could get oem , what happens when there gone , i keep all my worn and broken kx etc stuff just in case i need to remanufacture it , lucky there some real good fellas out there making tranny parts ,cases, power valves etc for the k5 and other kawi models. I hope someone like tm design step up and start making chain guides for older models they make a long lasting guide but they have only a small range for the newer models.