Merax Aluminum electric mountain bike is an excellent option if you are looking for a lightweight frame bike and a good suspension for smooth riding. This mountain ebike has standard Shimano 7 speed gears. Merax Aluminum electric mountain bike can develop the speed of maximum 32 km/h. The electric bike has a 350W high-speed motor and removable 36V 8.8Ah Lithium Battery. The battery allows you to ride a bike for up to 28 miles with a single charge of it. This electric mountain bike is also an excellent choice for those who are looking for an ergonomic design.
Versatility Electric bikes are great for helping a rider keep up with a significantly fitter person. You will be able to go further with much less effort. And, eBikes make it practical to do things like effortlessly carrying a basketfull of groceries or ridiing with kids. You will soon find that electric bicycles make your life easier and more convenient in many ways. There are no special requirements since eBikes classified as bicycles, so no license or registration is required.  Even more, eBikes let you sneak through gridlocked traffic and are very easy to locate parking for.  You can recharge the battery to about 75% in 45 minutes, so they are always ready to go.
One thing that separates these two are their warranties.  Rambo offer a 1 year limited warranty.  While Quietkat offer a 1 year limited warranty on all it's components including the battery, but each frame is covered by a lifetime warranty.  Quietkat have been around longer and are a proven, reliable manufacturer.  They've got it figured out and this year's catalog shows just how good they are.  Rambo is a new, small company with big ambitions and a quality product that they can stand behind.

All the models we tested are full suspension all mountain/trail bike models with relatively similar amounts of suspension travel, geometry, and wheel/tire size. The addition of a large battery and a small motor adds significant weight to an e-bike, and they generally weigh in the neighborhood of 50 lbs, approximately 20 pounds heavier than non-e-bikes, and the heavy weight of these bikes makes them more difficult to ride without the support of the pedal-assist motor.
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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