A:Answer Hello White,
Yes, level 5 pedal assistance, or full use of the throttle assistance should give you plenty of support, typically you would go twice the speed of a traditional bike depending on the rider input and of course how steep the hill is.
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The motor is 65Nm, which is enough for 15% grades. You can also check out the Electric Bike Reports' review of the Stride, it will give you a good idea of the capabilities of the bike.