Or different ratings stamps for UK and EU : if a particular motor model starts to heat up at 1000w, I think, under the regs, you could quite justifiably rate the max continuous motor power at 250w, 500w or 750w (250w would be quite conservative but I think you could justify it from an engineering pov)Woosh and Wisper as well as other UK brands will mostly stick to 250w rated hubs as other wise sales overseas see will be affected, I guess they could have two lines of motors .
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