Product Overview
This TST electric bicycle is a moped-style, fat-tire e-bike designed for adult road, trail, and mixed-surface riding. The configuration associated with ASIN B0GCZRVH4V uses 20-inch wheels with 4.0-inch-wide tires, a rechargeable 48-volt 15Ah removable battery, a rear hub-drive motor, pedal assistance, and throttle assistance. The drivetrain provides seven mechanical speeds, while front and rear suspension components are used to reduce the effect of uneven surfaces.
The bike includes an LCD display that provides riding and battery information. Its wide tires and suspension system distinguish it from conventional commuter bicycles with narrow tires and rigid frames. Published specifications also identify a high maximum rider-and-cargo load rating and describe the bicycle as suitable for paved roads, trails, urban surfaces, and other compatible terrain.
Public records for this listing contain conflicting information for several attributes, including the exact model designation, frame material, brake description, and warranty period. Those disputed values are omitted rather than reconciled by assumption. Specifications on this page are limited to details that can be supported consistently across available product records.
Product Information
Identification
| Field | Value |
|---|---|
| Brand | TST |
| Manufacturer | Shenzhen Uni-chic Technology Co., Ltd. |
| Category | Adult Electric Bicycle |
| ASIN | B0GCZRVH4V |
Physical
| Field | Value |
|---|---|
| Color | Black |
| Size | 20 × 4.0-inch tire configuration |
| Wheel Size | 20 inches |
Product Identifier Summary
- Model Number: A manufacturer-assigned designation used to distinguish a specific bicycle configuration from related products. Available records conflict on the exact model number for this listing, so no value is stated here.
- MPN: A Manufacturer Part Number is used in manufacturer catalogs, service records, inventory systems, and replacement-part identification. A verified MPN was not located for this configuration.
- UPC: A Universal Product Code identifies a commercial product through a standardized retail barcode. No UPC could be verified for this configuration.
- EAN: A European Article Number is part of the international GTIN identification system and is frequently used outside North America. No verified EAN was located.
- GTIN: A Global Trade Item Number provides standardized product identification across retail and distribution systems. No independently verified GTIN was located.
- ASIN: This catalog identifier distinguishes the source product listing from other electric bicycle configurations and variations.
Common Uses
This electric bicycle is intended for adult personal transportation and recreational cycling. Its motor assistance, wide tires, and suspension system support use across several types of riding environments where local regulations permit electric bicycles.
- Urban and suburban commuting
- Recreational riding on paved roads
- Unpaved recreational trails where e-bikes are permitted
- Gravel and mixed-surface routes
- Short- and medium-distance personal transportation
- Riding situations where pedal assistance reduces required rider effort
Maintenance & Care
Routine bicycle maintenance should include checking tire pressure, brake operation, wheel security, fasteners, drivetrain condition, and battery mounting before riding. Moving drivetrain parts should be kept clean and lubricated according to the bicycle manufacturer’s maintenance instructions.
The removable lithium-ion battery should be charged with the compatible charger supplied or specified for the bicycle. Store the battery and bicycle in a dry location away from extreme temperatures, open flames, excessive moisture, and direct exposure to heat. Battery electrical contacts should be kept clean and dry.
Fat tires should be inspected regularly for cuts, embedded debris, abnormal wear, or damage. Suspension components should also be checked for looseness, leakage, excessive play, or physical damage before continued use.
Safety Information
Electric bicycles combine mechanical bicycle components with a high-capacity lithium-ion battery and powered drivetrain. Riders should follow the operating manual, applicable traffic laws, trail rules, helmet requirements, and local electric bicycle regulations.
- Use only a compatible charger intended for the installed battery system.
- Do not charge a battery that is swollen, cracked, leaking, unusually hot, or otherwise damaged.
- Charge the battery in a dry, ventilated area away from combustible materials.
- Inspect brakes, tires, wheels, controls, and battery attachment before riding.
- Do not exceed the specified maximum load.
- Do not modify the electrical system, battery pack, motor controller, or charger.
- Motor-assisted speed may affect the legal classification of the bicycle under state or local regulations.
- Water-resistant bicycle components should not be treated as suitable for submersion or pressure washing.
Technical Specifications
| Specification | Value |
|---|---|
| Bike Type | Electric bicycle |
| Intended Age Range | Adult |
| Motor Type | Rear hub drive |
| Peak Motor Output | 1500 W |
| Battery Voltage | 48 V |
| Battery Capacity | 15 Ah |
| Battery Type | Rechargeable removable lithium-ion battery |
| Advertised Maximum Range | Up to 60 miles under stated operating conditions |
| Wheel Size | 20 inches |
| Tire Size | 20 × 4.0 inches |
| Suspension | Front and rear suspension |
| Mechanical Speeds | 7 |
| Derailleur Configuration | Rear |
| Gear Shifter Type | Twist grip |
| Electric Assist | Pedal assist and throttle assist |
| Display | LCD |
| Maximum Recommended Load | 450 lb |
| Power Source | Rechargeable battery-powered electric motor |
Product History
The bicycle belongs to TST’s family of fat-tire, moped-style electric bicycles. TST has marketed several closely related 20-inch models with removable batteries, hub motors, suspension systems, and seven-speed drivetrains.
Available catalog records for this particular product have changed over time and contain inconsistent model-name references. Because a definitive revision history linking every designation to this exact configuration could not be verified, no specific predecessor or successor model is assigned here.
Key Features
- Electric rear hub-drive system with pedal and throttle assistance
- Removable rechargeable battery for separate charging and storage
- 20-inch fat-tire wheel configuration
- Front and rear suspension for uneven surfaces
- Seven-speed mechanical drivetrain
- LCD rider-information display
- Twist-grip gear shifting
- High-capacity frame and component design with a published 450-pound maximum load
- Configuration intended for road, trail, and urban riding environments
Package Contents
Public records consistently identify the bicycle and an installation tool kit with this product configuration. Current TST documentation for closely related models also includes a battery, charger, pedals, manual, and assembly hardware, but package contents can vary by production version.
- Electric bicycle
- Tool kit
Compatibility
The bicycle is designed around 20 × 4.0-inch tires and a 48-volt electrical system. Replacement tires, tubes, batteries, chargers, brake components, controllers, and other electrical parts should be matched to the exact bicycle configuration rather than selected only by appearance.
The removable battery should only be replaced with a battery explicitly specified as electrically and mechanically compatible. Voltage alone does not establish battery compatibility because connector design, battery management systems, mounting rails, current ratings, and controller requirements can differ.
Frequently Asked Questions
What model is associated with ASIN B0GCZRVH4V?
Public catalog records provide conflicting model designations for this identifier. Some records associate it with R004, while variation information refers to an R002 Black configuration. A model number should therefore be confirmed directly from the bicycle’s identification label before ordering model-specific parts.
Is the battery removable?
Yes. The documented configuration uses a removable lithium-ion battery, allowing it to be charged while installed or removed according to the operating instructions.
Can the bicycle be used without motor assistance?
The seven-speed mechanical drivetrain allows conventional pedaling. Motor assistance settings provide additional powered support when the electrical system is enabled.
What information does the LCD display provide?
The display is intended to provide operating information such as speed, assistance status, trip information, and battery status. Available screen functions can depend on the controller and display version installed.
Are replacement batteries interchangeable with every TST e-bike?
No. TST produces several electric bicycle models with different battery capacities, mounts, connectors, and electrical configurations. Battery compatibility should be confirmed by exact model and battery specifications.
Does the fat-tire design require special replacement tires?
The bicycle uses substantially wider tires than a conventional road or commuter bicycle. Replacements should match the specified wheel diameter, tire width, rim dimensions, and load requirements.
Does the bike arrive fully assembled?
Electric bicycles of this type normally require final assembly and safety checks after shipping. The included tool kit supports assembly tasks, while the owner’s documentation should be followed for component installation and adjustment.
How should the battery be stored between rides?
The battery should be kept in a dry area within the temperature limits specified by its documentation. Extended storage near heat sources, freezing conditions, moisture, or direct sunlight should be avoided.
How can the correct replacement part be identified?
Check the identification labels on the frame, battery, motor, controller, and original component. Because similar TST bicycles may use different parts, physical appearance alone is not a reliable compatibility method.
Is the stated riding range guaranteed?
No. Published range figures are operating estimates rather than guaranteed travel distances. Rider weight, speed, assist level, terrain, temperature, tire pressure, wind, elevation changes, and battery condition can materially affect actual range.
Does the bicycle require special legal registration?
Requirements depend on jurisdiction and the bicycle’s operating configuration. Local laws may define electric bicycle classes according to motor power, throttle operation, assisted speed, and other factors.
What warranty applies?
Available public records provide inconsistent warranty information for this exact catalog configuration. The warranty applicable to an individual bicycle should therefore be confirmed from the documentation supplied with the product or from TST using its serial and model information.
Buying Considerations
Electric bicycle research should account for intended terrain, rider fit, battery capacity, tire dimensions, bicycle weight, motor-assistance behavior, local regulations, and access to compatible replacement components. Fat-tire moped-style bicycles are physically different from conventional commuter bicycles and can require more storage and transport space.
The advertised range represents an estimate under particular operating conditions. Riders using high assistance levels, throttle operation, steep routes, higher speeds, or carrying heavier loads may experience substantially different results.
Part compatibility is another consideration for this product because public catalog information contains conflicting model references. Confirming the model and serial labels on the actual bicycle is particularly important before ordering batteries, controllers, displays, chargers, suspension parts, or other model-specific components.
Customer Feedback Summary
This section is a generalized summary of recurring public customer feedback and is not a source of verified product specifications. Individual experiences vary according to rider weight, terrain, assembly, maintenance, riding style, and the specific production version received.
Positive feedback commonly discusses motor assistance, acceleration, the wide tires, and the usefulness of the suspension system on uneven roads. Riders also frequently mention the removable battery and upright moped-style layout when discussing everyday usability.
The bicycle’s size and substantial construction are viewed differently depending on the rider’s needs. Some owners appreciate the stable feel of the wide tires, while others report that the bicycle can be cumbersome to lift, transport, or maneuver without electrical assistance.
Other reported limitations include the assembly and adjustment required after delivery and occasional questions about replacement parts or configuration-specific documentation. Range reports also vary, which is expected because battery consumption changes considerably with speed, terrain, rider load, temperature, and assistance level.
Related Products
- TST R002: A 20-inch full-suspension moped-style electric bicycle in the TST R-series with removable battery options.
- TST R9: A related full-suspension moped-style electric bicycle with a different frame and battery configuration.
- TST R7: A full-suspension electric cargo-oriented model designed around increased utility and load carrying.
- TST Surfer Series: Commuter-focused electric bicycles using larger conventional bicycle wheels rather than the same 20-inch moped-style layout.
Last Updated
August 16, 2026
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