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Testing the G-Force ZM E-Bike in Jackson WY | Photo Connor Burkesmith Mountain Weekly News
All-Terrain E-Bike Reviews: Tested on Teton Dirt & Roads

G-Force ZM E-Bike Review

Mike Hardaker
August 30, 2022 7 Mins Read
2.1K Views
2 Comments

Now let me be straight up the G-Force ZM Fat Tire Electric Bike blurs the lines of e-bike and motorcycle, which may depending on how you ride this bicycle, cause some issues.

For our test I rode the 85 lb. ZM G-Force Electric Bike on dirt trails and on pavement through town to see just what this bike was all about. I even donned full face helmet for the first test ride as I wasn’t sure how rowdy this bike would get.

Mike Hardaker, Author and Gear Tester Talks about the G-Force ZM E-Bike

Trail Map
1 110mm Front Suspension
2 G-Force ZM Motor
3 G-Force ZM is a Class 3 E-Bike
4 48V Battery
5 Features
6 G-Force ZM Fat Tires
7 G-Force ZM LCD Screen
8 G-Force ZM Dual Hydraulic Disc Brakes
9 G-Force ZM E-Bike Pros & Cons
10 Overall Impression

110mm Front Suspension

Man in Pink Shirt on G-Force ZM Dirt Bike
Mike Hardaker  Riding the G-Force ZM E-Bike at Base of Snow King Ski Area | Photo Connor Burkesmith Mountain Weekly News

With 110mm adjustable front fork suspension and a rear suspension system coil spring the G-Force ZM Fat Tire Electric Bike does well on and off trail. Keep in mind this isn’t a dirt bike, nor a mountain bike, nor really a bicycle, it fits someplace in the middle.

Traditional mountain bikes have around 130mm-160mm of travel so you won’t be able to hit the same sort of drops on this bike. What you can do is zip around on a variety of trails from mellow single track to zipping down the street while passing cars in many instances. This bike wants to go fast and does that best on the street.

G-Force ZM Motor

Man Riding Electric Motorcycle G-Force ZM
Works on Dirt But Rips on the Road | Photo Connor Burkesmith Mountain Weekly News

The G-Force ZM E-Bike is built around a 750W rear hub motor that has a peak output of 1300W.  Now you won’t notice the 1300W on dirt, but when the tires of this bike hit the pavement lookout.  Off the line this is the fastest e-bike I have ever tested.

Man Riding G-Force ZM E-Bike on Sidewalks
Mike Hardaker Cruising on the Z-Force GM E-Bike in Town | Photo Connor Burkesmith Mountain Weekly News

Which brings us back to the whole getting in trouble riding an e-bike thing I started this article off with.  The G-Force ZM is an e-bike first and foremost however it looks much more like a dirt bike and performs like a motorcycle with it’s incredible pickup and go. When you hit the throttle on this bike be sure your really holding onto the handlebars as it wants to go fast, even in the lower power assist modes you can still hit top speeds. I got the bike up to 28mph which was plenty for me as our local speed limit in town is 25mph.

G-Force ZM is a Class 3 E-Bike

Riding G-Force ZM E-Bike Near Snow King Mountain
When Using the Throttle This Bike Haul’s Ass | Photo Connor Burkesmith Mountain Weekly News

Where can you ride this G-Force E-bike? If your not being an idiot riding the G-Force ZM on your local bike paths shouldn’t be a problem.  The bike seems to do best though riding with traffic as it’s incredibly quick at starting and stopping.  This is one of the e-bikes you ought to be wearing a helmet when riding as well your basically on a motorcycle classified as a class 3 e-bike.

48V Battery

Battery Atop E-Bike Frame
The Battery Sits Atop the Frame of the Z-Force GM | Photo Connor Burkesmith Mountain Weekly News

Currently there are two batteries for G-Force ZM E-Bike available.   The stock bike comes with the 48v 13.5ah or the upgraded battery the 48V 20Ah battery.  The difference is only $100 to go with the upgraded battery which offers almost 30 more potential miles per charge.

The battery took about 3-4 hours to charge and worked best on a full charge.  As it went down a bit I noticed the throttle lost some of its power as is the case with most e-bikes.  I would recommend charging this bike fully after each use.  Your buying this bike for it’s power, so why not operate it at full capacity, full send, the entire time?

Features

Handlebars on E-Bike
G-Force ZM Handlebars and E-Bike Controller | Photo Connor Burkesmith Mountain Weekly News

One of the rad things about this bike is it’s built in horn.  It’s a push button horn on the handlebar that you can actually hear while traveling in a car.  Far from the little cheap ding bells a lot of e-bike brands are using as of late.  So if your riding in the street with traffic why not have a horn.  I would guess turn signals will be coming next.

🔥 Click here to compare 2026 prices & availability at the bottom of this review.

Bright E-Bike Headlight
Bright & Powerful Headlight, Like Really Bright! On a High Strength Aluminum Alloy Frame Allow This Bike To Fly Up and Down Trails Safely | Photo Connor Burkesmith Mountain Weekly News

The bike also has a super powerful headlight, it’s massive like the sort you see on off road trucks as aftermarket adds ons combined with a tail light for riding at night.

For seat the G-Force ZM E-Bike uses a banana style seat that can hold a second rider thanks to the bikes total carrying capacity of 400lbs.

G-Force ZM Fat Tires

G-Force Bike Tires
The G-Force ZM E-Bike Will Go Everywhere with These 26″ x 4″ Fat Tires | Photo Connor Burkesmith Mountain Weekly News

For tires the G-Force ZM runs 20″ x 4″ fat tires with lots of knobs and thread. They offered good traction on dirt but even better on pavement.

G-Force ZM LCD Screen

LCD Screen Display for E-Bike
Brand New Color LCD Screen | Photo Connor Burkesmith Mountain Weekly News

Talk about a bright LCD Screen, the G-Force ZM displays offers everything you want to see (think speed) along with fun stuff like wattage, odometer and more.  Anytime you activate one of the 5 pedal assist modes the number shows up on the display.

The LCD Screen also has a USB port that you can charge a phone with, however there won’t really be anywhere to install a phone mount as the handlebars are narrow.  So bring a long cord and leave your phone in your pocket.

G-Force ZM Dual Hydraulic Disc Brakes

Man Going Downhill on E-Bike
G-Force ZM Offers Dual Hydraulic Brakes With Great Even Stopping Pressure | Photo Connor Burkesmith Mountain Weekly News

Borrowing from automobile industry tech the G-Force ZM E-Bike utilizes dual hydraulic disc brakes. This allows the front and rear brakes to communicate with each other. Combined with a motor cut off anytime the brakes are engaged for added safety. The stopping power on this bike is impressive and with the power coming from the motors peak output the use of upgraded dual hydraulic brakes was a smart move for Z-Force.

G-Force ZM E-Bike Pros & Cons

Pros:

  • Very fast on pavement (reached 28 mph)
  • Powerful 750W rear hub motor
  • Hydraulic disc brakes with good stopping power

Cons:

  • Blurs the lines between e-bike and motorcycle.
  • Classified as a Class 3 e-bike.
  • Very fast and dangerous for inexperienced riders.
  • Suspension not ideal for rough trails.
  • Battery life decreases as battery drains.

Overall Impression

Mountain Weekly News Founder Mike Hardaker
Mike Hardaker Living His Motocross Fantasy Out Thanks to the G-Force ZM E-Bike | Photo Connor Burkesmith Mountain Weekly News

Are you looking for a fun way to ride to work? To a friends house or maybe even a sporting event? The G-Force ZM is an impressive electric bicycle that allows someone that doesn’t own a motorcycle (like myself) to feel like they do.  Heck even people that have motorcycles might even appreciate this bike.

Man Riding Uphill on E-Bike
Headed Home After A Fun Day of Riding the G-Force ZM Electric Bicycle | Photo Connor Burkesmith Mountain Weekly News

It’s fast, the G-Force ZM E-Bike will turn some heads and if you put a fake gas tank lid on the top it would be darn near impossible to tell this was an e-bike.

Inventory currently unavailable at our partner retailers.

G-Force Coupon Code – MWN

Related E-Bikes TETON Tested

  1. Addmotor M-66 Rotan E-Bike Review
  2. RadRover 6 Plus E-Bike Review
  3. Himiway Zebra Fat Tire E-Bike Review
Follow Me Written By

Mike Hardaker

Mike Hardaker is the Founder and CEO of Mountain Weekly News. Based in Jackson Hole for 15 seasons, Mike has spent 24 years vetting technical gear in the world’s most demanding environments. As a Level III Avalanche Professional and alum of Teton Gravity Research, his field expertise spans high-altitude hunting, heavy-duty e-bikes, and snow sports. As of late Mike has been featured on Bloomberg and CNBC to discuss the future of digital media. Mike applies a rigorous auditor’s eye to everything he tests—prioritizing technical provenance over "office-chair" fluff. He is a fierce protector of the Open Web, a leading AEO technical auditor, and a strategist for brands seeking "Source of Truth" status in an AI-driven economy. Connect with Mike: LinkedIn

2 Comments

  1. Al says:
    September 21, 2023 at 11:21 AM

    With all due respect, you should visit a grammarian. Your analysis of the G-Force ZM e-bike seems to be very good, but I’m troubled by your misuse of the English grammar. Wishing you continued success.

    Reply
    1. Mike Hardaker says:
      September 21, 2023 at 12:56 PM

      Al,

      Thanks for checking out my blog, I never went to college so pardon the lack of grammar. We do appreciate the feedback. The bike rips!!

      Sincerely,

      Mike Hardaker

      Reply

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