4570Man
Super Star Member
- Joined
- Apr 7, 2015
- Messages
- 18,458
- Location
- Crossville, TN
- Tractor
- Kubota M59, Kubota L3800, Grasshopper 428D, Topkick dump truck, 3500 dump truck, 10 ton trailer, more lighter trailers.
If you put the factory recommended chain on the 50 cc it would narrow the difference. Is there a substantial difference? Yes. But the difference between the speed of a 50 and a 70cc class saw on a little 18 log is not a factor of 2 or 3 all else being equal. It just is not.
If course it would, but then it’s not interchangeable sharpening equipment. I’ve never tried but the bars and chains are probably interchangeable. It definitely is a factor. 6” is closer to where I’d consider it doesn’t make a difference.