ASKGO F28 Electric Bike User Manual

1. Introduction

Thank you for choosing the ASKGO F28 Electric Bike. This manual provides essential information for the safe assembly, operation, maintenance, and troubleshooting of your new electric bicycle. Please read this manual thoroughly before your first ride and keep it for future reference. Proper understanding and adherence to these instructions will ensure optimal performance and longevity of your e-bike.

The ASKGO F28 is designed for adults, featuring a 1500W peak brushless motor (750W sustained), a 48V 12Ah removable battery, and a 7-speed gear system. It offers a maximum range of up to 65 miles (pedal assist) and a top speed of 25 MPH (unlockable to 32 km/h in some regions, check local regulations). Equipped with front fork suspension, dual disc brakes, and a clear LCD display, it provides a comfortable and controlled riding experience for various terrains and commutes.

2. Safety Information

WARNING: Always wear a helmet and appropriate protective gear when riding your electric bike. Familiarize yourself with local traffic laws and regulations before riding.

Pre-Ride Check: Before each ride, inspect tires for proper inflation and condition, check brake functionality, ensure all quick releases and fasteners are secure, and verify battery charge level.
Riding Conditions: Avoid riding in adverse weather conditions such as heavy rain, snow, or ice. Be cautious on wet or slippery surfaces.
Visibility: Use the integrated headlight and ensure rear reflectors are clean and visible, especially when riding at dusk or night. Consider wearing reflective clothing.
Weight Limit: Do not exceed the maximum load capacity of 350 lbs (158 kg).
Battery Safety: Do not attempt to open or modify the battery pack. Charge the battery only with the provided charger in a well-ventilated area.
Children: This electric bike is intended for adult use only.

3. Product Overview

3.1 Key Components

Motor: 1500W Peak (750W Sustained) Brushless Motor
Battery: 48V 12Ah Removable Lithium-ion Battery
Frame: High-Carbon Steel
Wheels: 26-inch with 2.0-inch Puncture-Resistant Tires
Gears: 7-Speed Derailleur System
Brakes: Dual Disc Brakes (Front and Rear)
Suspension: Front Fork Suspension
Display: LCD Smart Display (Speed, Mileage, Battery Level, PAS Level)
Lighting: 400-Lumen Front Headlight, Rear Reflectors
Additional Features: Adjustable Seat, Fenders, Tool Kit

3.2 Visual Guide to Components

ASKGO F28 Electric Bike full view — Figure 3.2.1: Full view of the ASKGO F28 Electric Bike. This image shows the overall design of the bike, including the frame, wheels, handlebars, and seat.

ASKGO F28 Electric Bike dimensions and rider height — Figure 3.2.2: Dimensions and recommended rider height for the ASKGO F28 Electric Bike. This diagram illustrates the bike's total length, total height, handle width, seat height range, front center, front end to seat, and tire width, along with recommended rider heights from 5'1" to 6'6".

4. Setup

4.1 Unpacking and Initial Assembly

Your ASKGO F28 Electric Bike comes 95% pre-assembled. The remaining assembly typically involves attaching the front wheel, handlebars, seat post, pedals, and fenders. A tool kit is included for this purpose.

Carefully remove the bike from its packaging.
Attach the front wheel, ensuring the quick release is properly secured.
Install the handlebars, aligning them correctly and tightening the stem bolts.
Insert the seat post and saddle, adjusting to a comfortable height. Ensure the quick release is tightened.
Attach the pedals. Note that pedals are usually marked 'L' for left and 'R' for right. The left pedal tightens counter-clockwise, and the right pedal tightens clockwise.
Install the front and rear fenders.

4.2 Battery Installation and Charging

The 48V 12Ah battery is integrated into the frame and is removable for convenient charging. It takes approximately 4-5 hours for a full charge.

48V 12Ah Removable Built-in Battery — Figure 4.2.1: The 48V 12Ah removable battery integrated into the bike frame. This image highlights the battery's capacity, maximum distance (65 miles), fast charging time (4-5 hours), and IPX7 waterproof rating.

Internal vs External Battery Design — Figure 4.2.2: Comparison of internal and external battery designs. The ASKGO F28 features an internal battery for theft prevention, a clean design, and apartment-friendly charging, contrasting with the potential drawbacks of external batteries.

Dual Charging Modes — Figure 4.2.3: Illustration of dual charging modes. The battery can be charged while installed on the bike or removed for off-bike charging, offering flexibility.

To remove the battery, use the provided key to unlock it from the frame.
Connect the charger to the battery charging port, then plug the charger into a standard wall outlet.
The charger indicator light will show charging status (typically red for charging, green for fully charged).
Once fully charged, disconnect the charger and re-install the battery securely into the frame, ensuring it locks into place.

5. Operating Instructions

5.1 Powering On/Off and Display

LCD Display on Handlebars — Figure 5.1.1: Close-up of the LCD display on the handlebars. This image shows the display indicating battery level, current speed, pedal assist (PAS) level, and cycling distance.

Full-Color LCD Smart Display Features — Figure 5.1.2: Features of the full-color LCD smart display. The display is sunlight readable, IPX7 waterproof, and provides real-time data.

To power on the bike, press and hold the power button on the LCD display. The display will illuminate, showing your speed, battery level, pedal assist (PAS) level, and cycling distance. To power off, press and hold the power button again.

5.2 Riding Modes and Pedal Assist

Four Riding Modes — Figure 5.2.1: The four available riding modes: Throttle Mode, Pedal Assist Mode, Pedal Only, and Walk Assist Mode. This image visually represents the different ways to operate the e-bike.

Electric Bike Range — Figure 5.2.2: Illustration of the bike's range capabilities. The bike can travel up to 65 miles with pedal assist and 35 miles in pure electric (throttle) mode.

The ASKGO F28 offers multiple riding modes:

Pedal Assist Mode (PAS): Provides 5 levels of motor assistance while you pedal. Use the '+' and '-' buttons on the display to adjust the assist level. Higher levels provide more power.
Throttle Mode: Engage the throttle on the handlebar for pure electric power without pedaling.
Pedal Only Mode: Ride the bike like a traditional bicycle with no motor assistance.
Walk Assist Mode: Provides low-speed motor assistance to help you push the bike when walking.

5.3 Gear Shifting

7-Speed Gear System — Figure 5.3.1: Detailed view of the 7-speed gear shifting system. This image shows the shifter, 14T-28T gear cassette, and professional derailleur for smooth and precise transmission.

1500W Peak Brushless Motor — Figure 5.3.2: The 1500W peak brushless motor. This image highlights the motor's capability for 30° uphill climbs and a top speed of 25 MPH.

The 7-speed derailleur system allows you to adjust your pedaling effort to match terrain and speed. Use the shifter on the right handlebar to change gears. Shift to lower gears for climbing hills and higher gears for flat terrain or downhill riding.

5.4 Braking

Safety Features: Headlight, Dual Disc Brakes, Reflectors — Figure 5.4.1: Overview of the bike's safety features, including the 400-lumen headlight, responsive dual disc brakes, and reflector warnings for enhanced visibility.

Secure Your Ride with Dual Disc Brakes — Figure 5.4.2: Close-up of the dual disc brakes, emphasizing their role in providing secure and responsive stopping power.

The ASKGO F28 is equipped with dual disc brakes for reliable stopping power. Apply both brake levers simultaneously for controlled and effective braking. Avoid sudden, hard braking, especially with the front brake, to prevent loss of control.

5.5 Suspension and Tires

Front Fork Suspension for All Terrains — Figure 5.5.1: The front fork suspension system, designed to absorb shocks on various terrains including mountain, city, sand, and snow.

Smooth Ride with Full Suspension System — Figure 5.5.2: Benefits of the full suspension system, including 70% absorption of external shocks, 80% reduction of rider fatigue, and 90% improvement of controllability and stability.

The front fork suspension helps absorb shocks and bumps, providing a smoother and more comfortable ride. The 26"x2.0" puncture-resistant tires offer good grip and durability across different surfaces. Maintain recommended tire pressure for optimal performance and safety.

5.6 Official Product Videos

Video 5.6.1: 'Powerful 1500W E-Bike for Long Commutes'. This video demonstrates the ASKGO F28 electric bike, highlighting its features such as the 100km max range, 3-4 hour fast charging, 26-inch electric mountain bike design with removable battery, front fork suspension, 7-speed derailleur, and 150kg capacity. It also shows the 350W motor (peaking at 500W) with 5 speed levels, adjustable for different conditions, and its ability to climb slopes up to 15 degrees.

Video 5.6.2: 'Electric Bike Speeds Over 30 MPH'. This video addresses a user query about the bike's speed without pedaling. It demonstrates the bike reaching speeds of over 30 MPH (approximately 30.5 MPH shown on the display) and emphasizes the need for protective equipment due to its speed. It also mentions the 40-mile range and 330 lbs max weight capacity, noting that the bike looks like a normal bicycle despite being an e-bike.

6. Maintenance

Regular maintenance is crucial for the safety and performance of your e-bike.

Cleaning: Clean your bike regularly with a damp cloth. Avoid using high-pressure water jets directly on electrical components.
Lubrication: Keep the chain, gears, and other moving parts lubricated with appropriate bicycle lubricant.
Tire Pressure: Check tire pressure before each ride and inflate to the recommended PSI (usually found on the tire sidewall).
Brakes: Regularly check brake pads for wear and replace them when necessary. Ensure brake levers are responsive.
Battery Care: Store the battery in a cool, dry place. If storing for an extended period, charge it to about 50-70% and recharge every 2-3 months.
Professional Service: For complex repairs or adjustments, it is recommended to consult a professional bicycle mechanic.

7. Troubleshooting

Here are some common issues and their potential solutions:

Problem	Possible Cause	Solution
Bike does not power on	Low battery, loose battery connection, power button not pressed correctly	Charge battery, ensure battery is securely installed, press and hold power button for a few seconds
Motor not assisting	PAS level set to 0, throttle not engaged, brake levers engaged, motor error	Increase PAS level, check throttle, ensure brake levers are released, restart bike
Short battery range	Under-inflated tires, riding uphill frequently, heavy load, cold weather, old battery	Inflate tires to correct PSI, use lower PAS levels, reduce load, consider battery replacement if old
Brakes feel weak	Worn brake pads, loose brake cable, air in hydraulic system (if applicable)	Inspect and replace brake pads, adjust brake cable tension, consult a mechanic for hydraulic issues

If you encounter issues not listed here or cannot resolve a problem, please contact customer support.

8. Specifications

Feature	Detail
Brand	ASKGO
Model Number	F28
Bike Type	Commuting Bike, Electric Mountain Bike
Age Range	Adult
Motor	1500W Peak (750W Sustained) Brushless Motor
Battery	48V 12Ah Removable Lithium-ion
Charging Time	4-5 hours
Max Range	Up to 65 Miles (Pedal Assist)
Max Speed	25 MPH (Unlockable to 32 km/h)
Number of Speeds	7
Wheel Size	26 Inches
Tire Width	2.0 Inches (Puncture-Resistant)
Frame Material	Alloy Steel (High-Carbon Steel)
Suspension Type	Front Fork
Brake Style	Disc (Dual Disc Brakes)
Max Load Capacity	350 lbs (158 kg)
Bicycle Weight	50.7 lbs (23 kg)
Recommended Rider Height	5'1" to 6'6"
Included Components	Tool Kit, Fenders
Assembly Required	Yes (95% pre-assembled)

9. Warranty and Support

9.1 Warranty Information

The ASKGO F28 Electric Bike comes with a 1-Year Limited Warranty. This warranty covers manufacturing defects in materials and workmanship. It does not cover normal wear and tear, damage due to misuse, accidents, improper maintenance, or unauthorized modifications.

Please retain your proof of purchase for warranty claims.

9.2 Customer Support

For any questions, technical assistance, or warranty claims, please contact the seller or manufacturer directly. Refer to your purchase documentation for specific contact details.

ASKGO F28