roush9799
Silver Member
I believe the 4x00 and 4x10 series were built about as beefy as the x55 series. The 855 I had was a tank. I would say it was beefier than the 2520 I have now, but the 2520 seems to be a little more nimble in the mowing department, plus I now have 4x4 and a 72" mower instead of a 60".