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e-Zip Mountain Trailz electric bicycle


Pros: cheap, fun to ride, good for climbing hills

Cons: heavy, short range

I purchased this electric bike in the hopes of making my 13-mile commute to work a bit easier. It was the cheapest electric bike I could find. At ~$350, it's cheaper than a lot of non-electric bicycles. The Mountain Trailz can be a really nice bike, depending on your needs.

The bike is designed as a pedal-assist, meaning you pedal and use the electric motor at the same time. It's basically a mix between a bicycle and electric scooter, and the motor makes pedalling much easier, particularly when going against a headwind or uphill. It's very simple to use - just attach the battery, flip the power switch, and use the throttle as much as you'd like. The bike also has 7 gears, which is plenty because of the electric assist. I usually only used 3 of the gears.

It also comes with a key with which you can lock the battery in-place on the bike, or you can also detach the battery and take it with you. This makes it easy to recharge the battery anywhere (charger is included).

The only problem with the e-Zip is that it's heavy and doesn't have a very long battery range. The manufacturer estimates the range at 18-25 miles, but a more realistic estimate is 10-15 miles, and that's with both pedalling and using the electric motor for the entire trip. Since my commute was 13 miles, the battery would often die out about 3 miles before I got to work, and since the bike is so heavy, it's a lot of work to pedal it without the electric assist.

One other negative aspect is that it's rather difficult to change the back tire if you get a flat, because the electric motor is attached back there, and there are no instructions for this task. It took me quite a while to figure out how to replace the tube, and once I did I put in a nice puncture-resistant tube so I wouldn't have to worry about it again.

However, all that being said, if you won't be riding this bike for more than 10 miles before recharging it, it may fit your needs. It's a lot of fun to ride, and particularly useful if you're biking in a hilly or windy area. Of course, the more hills you climb, the sooner the batteries will run out of charge. They only lasted me 10 miles on the way to work but all the way home because my office is about 60 feet higher in elevation than my house.

The cruising speed on flat terrain with the e-Zip was about 16 mph. In comparison, my road/mountain bike hybrid cruising speed is around 14 mph, and my road bike is also around 16 mph. So it's not a super speedy ride, but the main purpose is to make pedalling easier.

It's also important to recharge the batteries ASAP after a ride in order to maximize the lifespan of these sealed lead acid (SLA) batteries.

In short, the e-Zip is a cheap alternative to an electric scooter with which you can get exercise while not having to work too hard to pedal, and have a fun time doing it. As long as your trip isn't too far, the e-Zip can be a nice, cheap, and fun option.


Pros: if you can get it to work, it is a decent bike

Cons: heavy..over 70 lb. Battery way overpriced at 120.

The bike is heavy, but works nicely. This is a good entry bike if you want to go electric. Just find someone other than Currie Technologies to deal with. You can go thru Wal-Mart. They will ship the bike to the store closest to you. Keep the carton and filler...just in case...and go thru Wal-Mart if it doesn't work properly.


Dealing with Currie Technologies was a horror show. Twice they sent bad batteries. I had the bike for over four months before I could actually ride it. When they sent the second battery, they actually included remarks stating "Customer is a pain."


I finally had to purchase a battery from them (at 20% off...Big Deal) just to get it on the road. They are the only company selling that specific battery, so I was stuck. The E-Zip weighs 70+ lbs. with both batteries on, so you better be pretty strong.


I have since bought a Cyclamic at 699. It is a GREAT bike (lithium battery) and I would go back to them in a heartbeat. My wife has a bike she bought from R.W Martin in Texas. It is a very good bike and they solved any problem she had over the phone; a good customer relations company.


I put a complaint in to the California Attorney-general’s Office about Currie.


Pros: Potential

Cons: Not reliable transportation for long trips

Wow - Did I get burned with this bicycle but I learned a lot!

I planned on riding this bike 32 miles round trip (to work
and back) each day in good weather.

1) The Battery connection contacts broke while riding on bumpy trails.  I modified the Connections and allowed more wire slack.

2) The 12 volt 10 Amp Hour Batteries are cheap and lose power over time.  No way could I go 16 miles one way even with 2 Currie Battery packs.  I bought 2 - 12 volt 22 Amp hour batteries and mounted them to the frame above the pedals.  Now I own the road as far as distance goes...

3) One Currie Battery pack actually leaked sulphuric acid all over the place which disolved carpeting and ate away part of the aluminum mounting frame.  Big fat mess and a Major Safety Issue!!!

4) The tires were easily punctured when riding.  I cannot count the number of flat tires that I had.  I installed 2 new puncture proof tires with puncture proof inserts.  Problem is fixed.

5) Then the bike started breaking rear spokes.  I was actually riding with 11 broken rear spokes and didn't know it.  I installed a double walled rim with double butted stainless steel spokes.  Yes - I respoked and trued the wheel all by myself with direction from Google searches.  A very interesting and time consuming operation.  I rode almost 500 miles with the new rear wheel set up and no broken spokes to report.

6) While examining a flat front tire, the 3 wires for the handle bar throttle pulled out, broke and shorted Blowing out the Motor Controller.  I am an electronics technician so I took the Motor Controller apart and found the transistor which blew out due to the short.  In place of the throttle I installed a 5 K Ohm Turn Pot which I use to adjust my speed. I no longer have to twist and hold the handle bar throttle for hours on end each day (A cramping and painfull experience).  The motor turns off if I stop pedaling within 3 seconds or I use the left brake.


I gave Low Ratings for the initial product (out of the box).


With about $300.00 worth of modifications this is now a decent electric Bike!!!!

My Re-Engineered Electric Bike - I would have to give an overall rating of 4 Stars. 




Pros: Still fun and productive! It's great to ride in the town I live in as it is easier to get around and almost faster!

Cons: I didn't really like the twist grip shifter and so changed that to a rapid shift lever shifter. But that is personal choice only.

e-Zip Mountain Trailz Electric Bike
The 6-month review!

    So, now it's been a bit over 6-months since we purchased 3 of the eZip Mountain Trailz bike, and we have put on some decent mileage between the three.  At this point, it is safe to take a look at what may have come to light on the product that we may have missed when we did the initial review.

   As everybody who has ever reviewed this bike has noticed, there is no way to get 22-miles of range as advertised by the manufacturer...unless it is 90% downhill!  But, the range is still much better than my electric scooters ever did, and we can easily cover 8 to 10-miles of distance on a fresh battery.  My son is an 8th grade student and loves to ride his eZip to school.  Amazingly, very few of the other students have noticed it is electric, which is fine as they won't ask to ride it. His only disappointment with going to school on it is that it gets to school and back too quickly...he wants to ride longer!  As he is using it nearly everyday, he has put the most miles on the bike, and the few things he has run into are as follows;

*  The rear brakes started sqealing loudly.
*  The electrical contacts between the battery and bike require periodic cleaning.
*  The tires are strictly for road use, despite the bike being a mountain style bike.

The problem with the rear brakes are attributed to the brake pad compound, and might cost all of $10.00 for new pads.  The electrical contact problem gets pretty real as the bike begins to lose power on an increasingly intermitttent basis. The fix is easy, as all you do is take fine sand paper to the contacts on the bottom of the battery case and the contacts at the bottom of the battery rack on the bike. If you are riding with only one battery and this begins to happen to you, simply switch sides of the rack and you should be good to go until you reach home.  And the tire issue....what can I say? At least he won't be trying to jump this 50-pound monster!

   On my own bike, I produced a set of battery saddlebags into which I placed two 12v/17AH batteries taken from the broken remains of my electric scooter. The stock battery has a capacity of 10AH from the two gel-cell batteries. Using the scooter batteries, I nearly double the capacity but save some weight over using two stock battery packs.  This makes the bike real tail heavy, but you have range coming out your brains!  NOW, you're going to get 20 to 22 miles of range, with some pedaling, but not much.  I also didn't like the twist shift for the deraileur and so I found a lever actuated Shimano rapid shift set-up on Ebay for cheap, and that worked out fine.  If you try this conversion, you must be carefuly about the spacing between the grips, brakes and throttle assembly.

   I have a few hundred miles on my bike now, with no problems so far.  I live in a town of 55,000 people with a small "downtown" area, (Redlands, CA) and from my house, I find it's just more fun to ride the bike and get around. Being my doctor just told me I have to watch my cholesteral levels, (yeah, and at 5'6", 135-lbs, 12% body fat....where is the cholesteral?), I decided that riding just got a new reason for being. It is still just cool when people light up and stare as they realize the bike is electric, with someone stopping me every so often to ask about it.  I used to love riding the scooter around town, but the eZip bike trumps this!  The scooter was unusual and sometimes would catch the eyes of the local cops, who did not like them but they are legal. Now, with the eZip, I don't get a scowl from the cops, and the ride is all that much better. Plus the bike is faster than the scooters. My scooters would only do 13 MPH on a good day.  The Mountain Trailz bike is doing 17MPH and you can feel that difference quite well.

Bottom line:  It's been a solid machine for the price! Nothing has broken, fallen off or deteriorated.  It's still a blast to ride.  I don't know if they are still selling for $300.00 or not, but if so....get one!

Mike Lee

 I bought my bike from Bestbuys since then the bike was a pain in the neck. The person who put it together need to learn to fix bicycles, my problem are lack battery power one battery pack the bike last up to 30-minutes and dies out. I took it back to Bestbuys and explain to them that this bike suppose to get 15-22 miles on a single charge. Bestbuys exchange my bike for a whole new bike. Bestbuys put it together and ready for next-day when I pick up my bike. And now 2-months later my front brakes needs replacing, the battery needs replacing and my controller needs need to be replace. I spend $500.00 for this bike Its should perform like a Toyota Prius on 2-wheels.  


Pros: Fast, esy to ride with good handling, great bargain price.

Cons: a bit heavy, especially with batteries mounted.

The Trailz bike is really a good deal, especially now that the price is down to $299.00 at a couple of places.  I have been looking at this line of products for two years, having been a user of electric powered scooters, one of which was the Currie S350 scooter. This scooter was one of the best and most reliable scooters anywhere. And I know this from experience, having been an evaluator of electric scooters for a publication that didn't last very long.  So, seeing the Currie name on a bike was one assurance that meant it had some quality to it.

It took me two years to buy one because I already had three scooters on hand and could not justify buying the bike at the original cost of $599.00.  It did not possess any distinct advantage over my scooters in the small town I live in. But, two years later, my scooters began breaking down and parts became scarce, so it was finally time to look again.

Once I found that the price was actually cheaper than replacing a scooter, the game was on!  I purchased mine from Toys-r-Us, and set about putting it on the road.  Assembly from out of the box was easy for anyone with basic mechanical skills and tools. You can tell by the parts and materials that the Trailz is not a high zoot, lightweight, leading edge design. The bike is a very basic, sport rider bike made mostly of steel with aluminum rims, cranks and brake assemblies. It took me a mere 20 minutes to assemble, including brake shoe adjustments. So, to anyone having to assemble one, put the battery on charge as soon as you open the box. All hardware is metric, so get the metric allen wrenches and socket wrenches ready. The bike comes with some tools, enough to assemble the bike, but they are very cheap stamped metal open end wrenches with mild steel allen wrenches. 

Amazingly, they provide you with a quick release cinch on the seat post, but not the wheel axles.  I intend on replacing the bolt-on axles with quick release for the convenience of fast take down when we need to transport the bikes. While we’re talking about the wheels, the front forks are elastomeric suspension shocks, which are better than nothing, but no match for hydraulic shocks. (Remember, this is an inexpensive ride!) The ride is comfy with this suspension system, further aided by the seat that also uses elastomerics for some comfort.
Bringing the bike to a stop is no problem with the V-type brake calipers. The brake pads are high grip units and you should have no trouble hauling the bike down from speed with only moderate pressure. At the rear, we find a 7- gear rear cluster serviced by a Shimano derailleur. The shifter is mounted to the left handlebar grip and is a typical “click-stop” unit. 
Powering the bike is a 450 watt CurrieDC brushed motor, which is a very proven design. It is strong and reliable motor that has remained basically unchanged in the last 7 years. The motor runs through a single phase gear reduction and then to a spur gear chained to the rear wheel freewheel sprocket.  Simple and quite effective. Throttle chores are from a twist grip on the right handlebar.
There is more, but we want to see how it runs! Sliding the battery pack into the rack is just a tad tricky at first, but quite secure. This is when the bike becomes a bit tail heavy. With the motor and the battery behind the kickstand balance, the bike is prone to falling over a little easier than a normal bike. Under most conditions it’s not going to just flop over, but if someone bumps it nicely, it may drop. Hopping on the bike and pedaling off is where you notice the weight of this being an electric powered bike. It’s not as easy to start off. Once going, it’s not much different than any other sport mountain style bike. Now, hit the throttle!
The surge of power is fairly immediate and very noticeable! In fact, this thing flat out feels fast! In this case, we peddled off and then hit the power. But, you can easily start from a dead stop and power up, with no complaint at all from the motor system. It just takes off and you might as well have a powered bike with pedals in case you use up the battery. The bike handles fine, and you do not feel the additional tail weight of the battery and motor. Shifting is positive and quick, and you will find that you will use the lower gears to start off and within seconds, be shifted up to high gear. You just have to remember to down shift when coming to a stop so you start all over again.
Our first couple of days riding the bike was just a blast! The first day, we put on 9 miles and had power left, despite the meter telling us we were empty. The same happened on day 2. You will find yourself automatically pedaling, despite not needing to if you so desire. But for those who do pedal, the range gets better as the motor doesn’t work as hard…and neither do you. Our guesstimate is that this bike is capable of covering 12 miles the way we rode the bike, which is less than the advertised 22 miles, but certainly a lot farther than the scooters we used to ride. A lot farther!
Our last test was with two E-Zips, (by the time our weekend was over, we had bought 3 of these!) and the speed/power equality test. Two riders, with a weight difference of 50 pounds between the two riders. We then brought both bikes up to speed to see if that weight difference slowed down a bike. Amazingly, they were neck in neck with speed and only a tiny difference in acceleration. That’s good consistency! 
We are very happy with the overall product. For the discounted price we purchased them for, it is a very good deal. Can’t beat it! Be aware they are heavier than any normal bike, but not unbearable. Again, these are great sporting bikes backed by a company that has a good reputation. 
e-Zip Mountain Trailz electric bicycle

All-terrain bicycle boasts a mountain-style steel frame. Reaches a top speed of 15 MPH and has up to 25 mile range with normal pedaling! For ages 13 and up; not to exceed 240 lbs.

Weight~70 lbs.
Additional Featuressealed lead acid (SLA) battery
Fuel Typeelectric
Miles per Charge10-15
Recharge Time3-4 hours
Top Speed18 mph
Power450 Watts
Release Date
Model Name/TypeMPNEAN/UPC
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