Megatron 4.0
How Financing Works
Get your bike now and pay over time. At checkout, simply select Shop Pay to split your total into smaller, manageable payments.
Legal Disclaimer: Belcopia is an authorized retailer, but we are not a financing company. We do not issue credit, manage loans, or make approval decisions. All financing, eligibility checks, and payment plans are provided entirely and independently by Shop Pay and their lending partners (Affirm).
16 days to be sure
Every Rambo can come back within 16 days of delivery. It needs under 10 miles on the odometer, no damage, and the original box with the charger and keys.
Return shipping is not included. We quote it before anything moves, so there are no surprises.
Call 718.808.6415Shipping
Belcopia is committed to deliver the product in perfect condition at the address indicated by the customer in the checkout page. In order to optimize delivery, we thank the customer for indicating an address in which the order can be delivered within normal business hours.
Returns
Your money means nothing to us if you are unhappy with your purchase with us. Customer satisfaction with our products is important to us, which is why we do returns and refunds, if the customer is not satisfied with our products. Simply send us an email, contact us on live chat, or if it can’t wait, call us and we’ll make things right.
Return windows and terms are set by each brand. Most purchases made on our website can be returned after delivery — see our Brand Return Terms for the window and conditions that apply to your bike. In most cases the buyer is responsible for the cost of returning the product.
If you have any questions, please view our Shipping Policy page or Return Policy page.
Give us a call at (718) 808-6415, or email: support@belcopia.com.
We'll Match or BEAT that price!
Prepare the link to the same exact product on their store that you want on our store and give us a call (718) 808-6415
Full Manufacturer Backing: Rambo Bikes
Because Belcopia is an authorized retailer, every Rambo e-bike we sell comes with the full backing of their official manufacturer's warranty. Rambo offers a limited lifetime warranty on the frame for the original purchaser, and a 1-year limited warranty on all other components, enclosed hardware, and accessories from the date of receipt.
Professional Assembly Notice
Your bike arrives 80% assembled and ready for the final bolt-on components. Rambo’s warranty does not cover damage from improper assembly, unauthorized modifications, misuse, or standard wear and tear (like tires, chains, and brake pads). We highly recommend having a local shop dial in your ride before you hit the dirt.
Registration & Claims
To protect your investment, this warranty must be registered within 30 days of receipt, and it is non-transferable if the bike is sold. You can register directly with Rambo, or let us handle the paperwork. Simply email your order details to support@belcopia.com and our team will register the bike for you.
If you ever need to initiate a claim, you can contact Rambo’s customer service directly at (952) 283-0777 for expert troubleshooting and approved repairs.
For complete terms and claim procedures, please view our full Warranty Policy Page.
MotorBafang dual 1000W hub motors
All Wheel Drive2,500W peak, 180Nm of torque. Toggle front, rear or AWD
Weight89 lbs with battery removed. Battery 12 to 16 lbs
RangeUp to 65 miles on one battery, up to 110 on dual. Up to 36 mph
Battery48V 20Ah 960Wh, or 48V 30Ah 1,440Wh
Megatron 4.0 Overview
The Megatron 4.0 is the biggest thing Rambo builds. A 1000W Bafang hub motor in each wheel makes 2,000W nominal and 2,500W peak, with 180Nm of torque and a 36 mph top end. Nothing else in the line puts that much down.
Both wheels drive, and you choose how many. Run one motor on hard pack and stretch the battery. Put both down on a loose, greasy grade where a single driven wheel spins and you end up walking.
It carries 350 lbs on a hydroformed 6061 T6 frame, rolls on Kenda 26 x 4.8 anti puncture tires, and runs a maintenance free single speed that can be upgraded to a Shimano 8 speed. Fewer parts to break a long way in.
TWO HUBS, TOGGLED ON THE FLY
Most electric bikes drive one wheel. The Megatron 4.0 drives both, with a 1000W Bafang hub motor front and rear for 2,000W nominal, a 2,500W peak rating and 180Nm of combined torque.
Toggle between front wheel, rear wheel and all wheel drive from the bars. A single motor conserves battery on easy ground. Both motors grip when the surface gives way, which is the difference between riding out and pushing out. Rambo Heavy Duty 4 piston brakes, 203mm front and 180mm rear, bring it back down.
PICK YOUR BATTERY, THEN DOUBLE IT
The Megatron ships with your choice of a 48V 20Ah at 960Wh or a 48V 30Ah at 1,440Wh, good for up to 65 miles on a single pack. Rambo's dual battery system adds a second 14Ah pack and takes that to up to 110 miles.
That second pack is an add on, not something the bike ships with. The range you get out of the box is the single battery figure, and that is the number we print in the spec table.
| Motor | Bafang dual 1000W hub motors |
|---|---|
| Performance | 2,500W peak rating, 180Nm of torque, 2,000W nominal power |
| Battery | 48V 20Ah 960 watt hours 48V 30Ah 1440 watt hours 48V 14Ah 672 watt hours, dual battery CYR |
| Range | Up to 65 miles on a single battery and up to 110 miles using the dual battery technology! |
| Speed | Up to 36 mph |
| Drive Type | AWD |
| Throttle | Thumb Throttle Right Side |
| Brakes | Front Brake: 203mm Rambo Heavy-Duty 4-piston pads and integrated electric safety cutoff Rear Brake: 180mm Rambo Heavy-Duty 4-Piston pads and integrated electric safety cutoff |
| Gear System | Maintenance free single speed with the ability to upgrade to a Shimano 8 speed |
| Tires | Kenda 26” x 4.8” anti puncture aggressive tread tires |
| Chain | KMC Branded Single Speed 1/2" X 1/8" |
| Frame | Hydroformed aluminum alloy 6061 T6 heat treated, tig welded to the highest specifications |
| Display | Featuring Adjustable Class System (ACS) and waterproof |
| Seat |
UPGRADE: Cloud 9 Airflow Saddle Seat. Ultra wide, thick padding and built for extra-long rides across trails or tough terrain, this seat is the top recommendation from hunters. UPGRADE: Cloud 9 Sport. Designed with memory foam comfort and to keep you in pursuit of your passion longer than ever before. |
| Pedals | Extra wide Wellgo aluminum alloy UPGRADE: Extra Wide pedals equipped with gripping traction pins to keep your feet in place as you tackle the toughest terrain. Snow, mud, and rocky ground are no match for these pedals. |
| Load Capacity | 350 Lbs |
| Weight | 89lbs with battery removed. Battery weight 20Ah-12lbs | 30Ah-16lbs |
WHAT'S IN THE BOX
NEW Bike
Display
Battery
Charger
Support
Questions before buying
What does the AWD toggle actually do?+
There is a 1000W Bafang motor in each wheel. The control lets you run the front only, the rear only, or both. One motor stretches the battery on easy ground. Both together give you the full 2,000W nominal and 2,500W peak, which is what keeps the bike pulling on a loose climb instead of spinning.
Is the 110 mile range what I get out of the box?+
No, and this is worth being clear about. Up to 110 miles is Rambo's dual battery figure, which needs a second 14Ah pack. On the single battery the bike ships with you get up to 65 miles. That is the number in our spec table and in the filters.
20 Amp or 30 Amp, which should I pick?+
The 20 Amp is 48V 20Ah at 960Wh, the 30 Amp is 48V 30Ah at 1,440Wh. Both are rated up to 65 miles by Rambo, but the larger pack holds that up better under load, in AWD, and in the cold. Choose it in the Battery option above.
Is it street legal?+
It ships with Rambo's Adjustable Class System in the display, so the rider can cap the bike at Class 1, 2 or 3 limits. Unrestricted it will do up to 36 mph, the fastest in the Rambo line. Class rules are set locally, so check what your state and your trail system allow before you ride.
How much can it carry, and how much does it weigh?+
Load capacity is 350 lbs, the highest in the line. The bike is 89 lbs with the battery removed. The 20Ah pack adds 12 lbs and the 30Ah adds 16.
Is a single speed a downgrade at this price?+
It is a choice. There is no derailleur to bend on a rock and no cassette to pack with mud, and with 180Nm at the wheels the motors do the work a cassette would do. Rambo also offers a Shimano 8 speed upgrade if you want gears.
How much assembly is needed?+
Rambo ships the bike almost fully assembled. Final setup takes a few minutes and needs no specialty tools.
Megatron 4.0 on video
Two from Rambo and one first look from HuntStand. Videos play here on the page.
Megatron 4.0
Rambo's own walk around of the 4.0, the dual 1000W motors and the frame.
How to Install Dual Battery on the Megatron 4.0
Fitting the second pack, which is what takes the range from 65 miles to 110.
Rambo Megatron E-Bike, First Look
A short independent first look from HuntStand.
