Depends also on your cart. I use a single bed cart from Rubbermaid (8 ys), so my keyboard (76 - heavy) lays nicely on them for transport.

The Bose and Nano, albeit compact, was a pain for my method.
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Yamaha 920 / Yamaha DGX-670 / Maui 5 Go (2) / Senn e935 / Sony C80 / Tascam DP24sd / ATEM Mini Pro switcher (studio)