So how often do you see severe damage to a blade bar, boss, crank or crank tip due to the blades striking a solid object at speed?
And how much does it cost to replace your average set of blades?
The blade discs on some mowers here definatly outweigh your average bar blade (you must remember, we also get our fair share of direc american models here, complete with solid bar blades)
The disc setup is designed to provide a balanced counterwieght, while also allowing the blades to fold back if they come in contact with something potentially damaging to the engine.
You cna run into the top of an embedded boulder, and the most you will need is a new set of blades, which you can get for about $15, or a little more with the bolt set.
