The frame size seems about the same, but when transporting equipment you should always go with the largest wheels available. This provides a smoother ride over such things as ornamental brickwork used for paving sidewalks, carpet edging strips, etc.
Cheers,
Gary
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Travlin' Easy
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)