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Old 07-27-2009, 12:24 PM
mowerconsultant's Avatar
mowerconsultant mowerconsultant is offline
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Join Date: Feb 2000
Location: Syracuse, NY
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The difference is due to frame design and tire size.
In a 42" unit you wont notice a advantage of one over the other, other than the larger tired SD will ride smoother.
The SD is also a heavier duty unit, it uses a better engine and hydro system.
The SD wouldn't be overkill in my opinion.

Pj
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