The Tamobyke T73 Max Electric Bike is a dual-battery fat-tire e-bike built for riders who want extended travel capability, strong motor assistance, and a substantial moped-style frame. Its 1,500W rear hub motor is paired with two removable batteries, providing more available energy than a typical single-battery setup.
Hydraulic disc brakes, full suspension, and 20 × 4-inch puncture-resistant tires support riding across paved roads, gravel routes, uneven surfaces, and recreational paths where permitted. The long seat and broad rider-height range may suit riders who prefer an upright, motorcycle-inspired riding position.
Speed, range, and performance figures come from manufacturer testing and should be treated as comparison points rather than guaranteed results. Actual performance depends on rider and cargo weight, speed, pedal-assist setting, throttle use, hills, terrain, wind, temperature, tire pressure, battery condition, and maintenance.
The listed motor output and maximum speed may exceed common US e-bike class limits in some locations. Check state and local rules covering e-bike classifications, public roads, bike lanes, parks, trails, registration, licensing, and insurance before riding.
Key Specifications
| Feature | Specification |
|---|---|
| Motor | 1,500W rear hub motor with up to 2,000W peak output |
| Top Speed | Manufacturer-listed speed of up to 33 mph |
| Battery System | Dual removable battery system |
| Primary Battery | 48V 20.8Ah |
| Secondary Battery | 48V 15.6Ah |
| Combined Capacity | 36.4Ah total listed capacity |
| Maximum Range | Manufacturer-listed range of up to 120 miles |
| Charger | 54.6V 2A |
| Brakes | Hydraulic disc brakes |
| Suspension | Full-suspension system |
| Tires | 20 × 4-inch puncture-resistant fat tires |
| Display | LCD display |
| Frame Material | Carbon steel |
| Maximum Load | Manufacturer-listed maximum load of 350 lb |
| Recommended Rider Height | Approximately 5 feet 3 inches to 6 feet 6 inches |
| Included Accessories | Phone holder, charger, air pump, extra brake pads, password lock, and installation toolkit |
Motor and Performance
The 1,500W rear hub motor has a manufacturer-listed peak output of up to 2,000W. It provides assistance for acceleration, hills, and riding with additional weight on suitable terrain.
Tamobyke lists a top speed of up to 33 mph. Actual speed depends on rider weight, battery charge, terrain, wind, tire pressure, temperature, and bike settings.
Because higher speeds require longer stopping distances and faster rider reactions, new owners should become familiar with the throttle response, brakes, steering, and bike weight at lower speeds before using higher assistance settings.
Dual-Battery System
The T73 Max uses two removable batteries:
- One 48V 20.8Ah battery
- One 48V 15.6Ah battery
Together, they provide a combined listed capacity of 36.4Ah. The dual-battery design increases the amount of stored energy available for longer rides and reduces the need for frequent charging stops.
Both batteries should match the bike’s approved electrical system. Do not use either battery with an unapproved voltage, connector, charger, or battery-management system.
Whether the bike can operate normally with only one battery installed depends on the current electrical design and manufacturer instructions. Follow the supplied manual rather than altering or bypassing the battery system.
Range
Tamobyke lists a maximum range of up to 120 miles under its testing conditions.
This figure is not guaranteed for every ride. High speeds, frequent throttle use, hills, heavier loads, cold temperatures, strong wind, low tire pressure, and repeated acceleration can substantially reduce riding distance.
Riders seeking the greatest possible range should use lower pedal-assist settings, maintain proper tire pressure, pedal consistently, and avoid unnecessary acceleration.
Charging
The manufacturer lists a 54.6V 2A charger for the T73 Max.
Charging time can vary because the bike uses two batteries with different capacities. Battery level, temperature, battery age, and whether one or both batteries require charging will affect the total charging period.
Use only the supplied or manufacturer-approved charger. Inspect the batteries, charging ports, cables, and connectors before charging. Do not use equipment that is damaged, swollen, wet, unusually hot, or producing an unusual odor.
Suspension and Ride Comfort
The full-suspension system helps reduce impacts and vibration from rough pavement, gravel, broken roads, and uneven surfaces.
Suspension can improve comfort and control, but it does not make the bike suitable for every mountain-bike trail, jump, or technical off-road route. Riders should select terrain that matches their experience and the bike’s intended use.
Tires and Handling
The 20 × 4-inch puncture-resistant fat tires provide a broad contact area for grip and stability on mixed surfaces.
Fat tires and the moped-style frame give the T73 Max a heavier, more planted feel than a conventional bicycle. Riders should allow additional room when turning, parking, maneuvering at low speed, and transporting the bike.
Tire pressure should be checked regularly. Riding with pressure that is too low can increase rolling resistance, reduce range, and make handling less predictable.
Brakes
The T73 Max uses hydraulic disc brakes for controlled stopping across different riding and weather conditions.
Brake pads, rotors, hoses, and fluid systems should be inspected regularly, particularly when the bike is frequently ridden at higher speeds or with additional weight.
Allow more stopping distance when carrying cargo, riding downhill, or traveling on loose or wet surfaces.
Frame, Seat, and Rider Fit
The bike uses a carbon-steel frame and an extended moped-style seat. Tamobyke lists a recommended rider-height range of approximately 5 feet 3 inches to 6 feet 6 inches.
Height alone does not guarantee a comfortable fit. Inseam, reach, arm length, seating preference, and preferred riding posture also affect comfort and control.
Riders near either end of the listed range should review the bike dimensions and riding position before ordering.
Maximum Load
Tamobyke lists a maximum load of 350 lb. This total includes the rider and anything carried on or attached to the bike.
Staying below the maximum load does not guarantee identical speed, range, climbing, or braking performance. Heavier loads can reduce range and increase braking distance.
Display and Included Equipment
The LCD display provides access to speed, battery level, mileage, and other basic ride information.
The manufacturer currently lists the following accessories with the bike:
- Phone holder
- Charger
- Air pump
- Extra brake pads
- Password lock
- Installation toolkit
Package contents can change, so review the current product configuration before checkout.
Recommended Use
The Tamobyke T73 Max may suit:
- Longer recreational rides
- Riders who prefer a dual-battery setup
- Paved roads and gravel routes
- Mixed-surface travel
- Riders who want fat-tire stability
- Buyers who prefer a moped-style seat
- Taller riders within the listed fit range
- Riders comfortable handling a powerful, heavier e-bike
It may be less suitable for buyers who need a lightweight commuter, frequent stair carrying, compact storage, or the feel of a conventional bicycle.
Before You Order
Review the selected color, battery configuration, current package contents, bike dimensions, and specifications before placing the order.
Confirm that the bike’s motor output, maximum speed, and intended riding locations comply with applicable state and local regulations.
Frequently Asked Questions
Why does the T73 Max use two batteries?
The dual-battery system increases total available energy and supports longer riding between charging stops.
The two batteries provide a combined listed capacity of 36.4Ah, but actual range still depends on riding conditions and how much motor assistance is used.
Can I ride with only one battery installed?
That depends on the current battery-management and electrical design. Follow the manufacturer’s manual for the exact bike version.
Do not bypass connectors, modify battery wiring, or mix the original batteries with unapproved replacements.
Is the 120-mile range guaranteed?
No. The 120-mile figure is a manufacturer-listed maximum under specific testing conditions.
Actual range may be lower due to speed, throttle use, hills, wind, cold weather, rider weight, cargo, tire pressure, battery condition, and riding style.
How fast can the Tamobyke T73 Max go?
Tamobyke lists a top speed of up to 33 mph.
Actual speed varies, and the highest settings may not be permitted on public roads, bike lanes, parks, or trails in every location.
Does the T73 Max fit tall riders?
The manufacturer lists a rider-height range of approximately 5 feet 3 inches to 6 feet 6 inches.
Riders should also consider inseam, reach, seating position, and overall bike dimensions when checking fit.
What is the maximum load capacity?
The manufacturer lists a maximum load of 350 lb.
This includes the rider and any cargo or accessories carried on the bike.
Does the bike use hydraulic brakes?
Yes. The T73 Max is listed with hydraulic disc brakes.
Regular inspection remains important because brake wear depends on rider weight, terrain, speed, weather, and riding frequency.
Are both batteries removable?
The manufacturer states that both batteries are removable for charging and replacement.
Use only batteries and chargers approved for the exact T73 Max electrical system.
Is the T73 Max legal on public roads?
That depends on state and local law. Its listed 1,500W motor and top speed of up to 33 mph may exceed common Class 1, Class 2, or Class 3 e-bike limits.
Check local classification, equipment, registration, licensing, insurance, and riding-location requirements before use.
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