Our product range now includes bearing dummies made from PA6 PM plastic. The highly precisely fitting Dummys enable you to fit the crankshaft in the engine casing easily by hand, in order to be able to easily measure and adjust the valve timings. Take care fitting this, as it protects the bearing seat of the engine casing/crankshaft, and it is possible to work very easily with it. The bearings are no longer contaminated by possible splinters either. A MUST HAVE for everyone who wants to adjust the valve timings and work on the inlets.