We have had new customers, as well as existing customers pose questions about our HEX-FLX Flywheel Couplings Patented Locking System.  Mainly because how the locking system functions is not apparent by just looking at the parts.  Some people will tighten the locking screws before the hub is located on the shaft, which is bad (as you will see in this video).  We hope this video will help to clear up any questions you may have in regards to our HEX-FLX Flywheel Couplings locking system.