Brand new it should be 168, with the first link being removed after about 50 miles. As the track wears, you continue to remove links as required. After 10 links have been removed, the track is considered as being worn out.
This was by the book back when you could order new track, and the government paid for it. These days, it would not be unheard of to be running a track down towards the 155/156 link range. Mine is in that range now. Fortunately, I have picked up a much better set which I will install next spring.
I will also make up some new track pins for the old track and get some more life out of it sometime down the road. The pins end up looking like mini-crankshafts when they wear. Multiplied x 156, the stretch is quite appreciable. As long as the links have not been worn through where the sprocket meets the link, they should give a bit more service.
|