I'm a New Zealand cyclone fannatic , live on a small mountain & need the best for hills or towing, Had 450 ezip motor as midrive blew up that had hub 500 usless ,sold to guy in flat city, now my best is 36v 960w cyclone(tiawan) but got it as 650 with(650 no good), Br Paco's advice etc converted to the 960(best to get 36v 960)so not to have that trouble.
have 4 500w ones 2-1chainwheel & 2 -3chainwheel . They all good for grandkids but I'm a rich oldy. hope others lean frm my misakes .Make my own battery packs liFepo4 is cheap if u take into accout the time they will last but u must have right BMS.can't give link or pic as when i do lose my bldy message but its
www.BMS etc china for battery & just purchased a nuvinci Both Tiawan cyclone & BMS guy good if u read site thougherly to get the right product.i even weld up for better crank chainwheel so chains on 3ch kit can't lock.