You can set the maximum speed at more than 20mph (but the legal limit is 20). Also, you should not cross that limit because the Shimano 7-gear transmission system won’t be able to cope up with anything higher than 22 to 23 mph. However, to the absolute joy of the thrill seekers, the huge weight of the bike can push the speed to go over 40 mph on downhill coasts. Be careful though and make sure that the road and traffic conditions allow that speed limit.
With most ebikes the choice of motor defines aspects of the frame geometry and to a lesser degree the suspension characteristics of the bike. Not with new Rock Mountain Altitude Powerplay. With its bespoke motor Rocky has been able to design an ebike that reflects the ride quality of a highly evolved 150mm trail bike. With instant power pickup, extended battery life and streamline proportions it’s not just the handling of the Rocky that will get you charged up for riding. It’s the best bike in this test by some margin, but we had an issue with the motor momentarily cutting and raising questions over it’s reliability.

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