This new unit from JNS will protect your cases from the damage caused by a thrown chain, and will also keep your pants, boots or foot safe from your countershaft sprocket.
The case saver portion is laser cut from 0.25" aluminum and then has the 0.19" aluminum countershaft sprocket cover welded to it and the entire unit is powder coated black.
All the mounting hardware is stainless steel with machined aluminum spacers also included.
If you have a 16t front sprocket, mounting modification may be needed to fit. Install the case saver on the bike without the top spacer and bolt. This provides a little extra wiggle room. Add the top spacer and bolt after the bottom bolts are loosely threaded.