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.
The Ancheer is powered by a 36V 8Ah battery system that is mounted on the front of the handlebars. This powers a 250 W brushless motor. How much power you want the bike to exert is dependant on which mode you set it to. It has 2 modes: assistive and e-bike. E-bike will power the entire thing for you so you don’t have to pedal at all, whereas assistive will give you a bit of power to help you out. This is all controlled by a small panel on the handlebars. The assistive mode has 3 settings so you can have as much control over the amount of work you do as you desire.
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I continued to have issues with the rear brakes. The rear disc brake was bending when I braked and I could not figure out how to get it from rubbing on the pads. I eventually took the bike over to REI and paid for a tune-up. Fantastic work by them, the bike has a better top speed by a couple mph now and shifting/braking are much smoother. I was also having issues with the chain jumping off the front derailleur on high torque (high gear from standstill). Looks like I just needed the experts to give it the tune.


SERVICE AVAILABLE --- With one-year warranty for the electric motor, battery and other parts except for frame, no worry about using it. This bicycle arrives 85% assembled. It's not hard to finish aseembly by yourself. The assembly service on this page is provided and charged by Amazon’s third-party company, if you can't finish by yourself, click on the “Select Assembly ” button above; choose "Ship to store for assembly and pick up".
The gears don't seem to keep up on this bike. There are 21 gears, same as my other bike, but there is much more resistance at the highest gear on my other bike going 20mph than there is on this bike. The reason that is an issue is that during pedal assist, the bike goes pretty quick and I don't want to be pedaling air, I want some, just a little, resistance. I don't know the mechanics of it or how this would be the case, perhaps because this bike has smaller wheels than my other bike? The bike came pretty well adjusted on the derailleurs. I haven't touched the back but the front I've had to mess with a little. The chain fell off outboard once, so had to adjust. Chain guard did its job well. The chain got stuck pretty good, but once I loosed the chain guard everything was easily moved.
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