Megatron 5.0 Step-Thru
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.
⚠️ Pre-Order
The Megatron 5.0 is new from Rambo and taking pre-orders now. Order today to reserve yours — your bike ships as soon as Rambo’s stock arrives.
- FDE — expected ~10/25/2026
- TrueTimber Viper Western — expected ~10/25/2026
Dates are Rambo’s current estimate and can move. Questions? support@belcopia.com
MotorDual 52V 1000W hub motors
All Wheel DriveOn demand AWD for mud, snow, grass and hills
Battery52V 25Ah, the one battery option
SpeedUp to 38 mph, thumb throttle and pedal assist
Weight86 lbs with the battery removed. 350 lb capacity
Megatron 5.0 Step-Thru Overview
The Megatron 5.0 replaces the 4.0, and the change you notice first is the frame. It is a step thru now, in 6061 T6 aluminum, so getting on and off with a pack, a rifle or tired legs is easy.
Underneath it is still Rambo's all wheel drive hunting bike: a 1000W hub motor in each wheel on a 52V system, with all wheel drive you switch on when the ground turns to mud, snow, wet grass or a steep climb. It carries 350 lbs and tops out around 38 mph.
Rambo also changed the gearing. A 30T rear sprocket replaces the 4.0's 22T, which is built for the slow, hard going where you want to pedal along with the motors, not for cruising.
GEARED FOR THE SLOW, HARD MILES
The 4.0's 22T sprocket was geared for pedaling at around 17 mph. The 5.0's 30T is geared for around 6 to 8 mph, which is where a hunting bike actually works: creeping up a field edge, climbing out of a creek bottom, crossing soft ground with a load on the rack.
At those speeds the bigger sprocket gives you more leverage on the pedals, so when the bike is working on a hill you can add your own power and help it up. It stays a single speed with no derailleur to knock out of line on a trail.
| Frame | Step thru, 6061 T6 aluminum |
|---|---|
| Motor | Dual 52V 1000W hub motors, on demand all wheel drive |
| Battery | 52V 25Ah (the one battery option) |
| Top Speed | Up to 38 mph |
| Throttle | Right thumb throttle |
| Pedal Assist | Adjustable; set each assist level from the phone app |
| Display | Updated LCD with Bluetooth |
| Gear System | Single speed, 30T rear sprocket (the 4.0 used 22T) |
| Tires | Rambo 26 x 4.0 with 5mm anti puncture protection |
| Brakes | Rambo 860 |
| Lights | Green and white light |
| Load Capacity | 350 lbs |
| Weight | 86 lbs with the battery removed |
| Colors | Flat Dark Earth (FDE) and TrueTimber Viper Western Camo |
WHAT'S IN THE BOX
NEW Bike
Display
Battery
Charger
Support
Questions before buying
What changed from the Megatron 4.0?+
Rambo lists five changes. The frame is now a step thru. The system moves to 52V with a 25Ah battery. The 26 x 4.8 tires are replaced by Rambo 26 x 4.0 tires with 5mm anti puncture protection. The LCD is updated with Bluetooth so you can tune each assist level from your phone. And the rear sprocket goes from 22T to 30T.
Why did Rambo move to a 30T rear sprocket?+
The 4.0's 22T was geared for pedaling at around 17 mph. The 30T is geared for around 6 to 8 mph. That gives you more leverage at slow speeds, so if the bike is struggling on a climb you can pedal and help it. It suits the slow, demanding riding a hunting bike does most.
What does the all wheel drive do?+
There is a 1000W hub motor in each wheel. Rambo describes the drive as on demand all wheel drive: run it when the ground calls for it, in mud, snow, grass and on hills, where a single driven wheel would spin.
Is there a bigger battery option?+
No. The 5.0 comes with one battery, 52V 25Ah, and that is the standard option Rambo lists. The 4.0's 20Ah and 30Ah choices and its dual battery kit do not carry over.
What range does it get?+
Rambo has not published a range figure for the 5.0 yet. Range on a 52V 25Ah pack depends heavily on weight, terrain, speed and how much you run both motors, so we would rather give you no number than a borrowed one. Ask us and we will pass on what Rambo tells us.
How fast does it go?+
Rambo rates it up to 38 mph using the right thumb throttle and adjustable pedal assist. Check the e-bike rules where you ride; many trails and public lands cap speed or motor power.
How heavy is it and what will it carry?+
Rambo lists 86 lbs with the battery removed and a 350 lb load capacity, rider and gear together.
