1. សេចក្តីផ្តើម
This manual provides essential information for the safe operation, maintenance, and care of your Gotrax 20" Folding Electric Bike R3. Please read this manual thoroughly before your first ride to ensure proper usage and to maximize your riding experience. Retain this manual for future reference.
2. ព័ត៌មានសុវត្ថិភាព
Your safety is paramount. Always wear a helmet and appropriate safety gear when riding. Familiarize yourself with local regulations regarding electric bikes. The R3 electric bike is UL Certified (UL2849), ensuring compliance with safety standards.
Key Safety Features:
- ហ្វ្រាំងឌីសពីរ៖ Provides powerful and reliable stopping capability.
- LED Headlight & Rear Reflector: Enhances visibility for safe day and night riding.
- Front Shock Absorber: Improves ride comfort and stability on varied terrain.
3. មាតិកាកញ្ចប់
នៅពេលវេចខ្ចប់ សូមប្រាកដថាធាតុទាំងអស់មានវត្តមាន៖
- Gotrax 20" Folding Electric Bike R3 (mostly assembled)
- ឧបករណ៍សាកថ្ម
- សៀវភៅណែនាំ
- ឧបករណ៍ដំឡើង
- Keys (for battery activation and removal)
4. ការដំឡើង & ការជួបប្រជុំគ្នា។
The R3 electric bicycle comes highly assembled. Follow these steps to prepare your bike for its first ride:
- Unfolding the Bike: Carefully unfold the main frame until it locks securely. Ensure all quick-release levers are properly fastened.
- ការលៃតម្រូវរបារដៃ៖ Raise the handlebar stem to your desired height and secure the quick-release lever. Ensure the pin is locked to prevent wobbling.
- ការកែតម្រូវកៅអី៖ Adjust the seat post height for a comfortable riding position, ensuring your feet can touch the ground when stopped. Secure the quick-release lever.
- ការដំឡើងឈ្នាន់៖ Attach the pedals using the provided tools. Note that pedals are typically marked 'L' for left and 'R' for right.
- ការធ្វើឱ្យថ្មសកម្ម៖ Insert the key into the ignition port (located underneath the frame near the folding mechanism) and turn it clockwise to activate the battery.
- ការគិតថ្លៃដំបូង៖ សាកថ្មពេញមុនពេលជិះលើកដំបូង។
Video: GOTRAX R2 Folding Electric Bike - This video demonstrates the unboxing and initial setup of the Gotrax R2 electric bike, which shares similar assembly steps with the R3 model.
5. សមាសភាគ & លក្ខណៈពិសេស

Image: The Gotrax R3 Folding Electric Bike, showcasing its overall design and robust tires.
- ម៉ូទ័រ៖ 500W brushless motor, providing a top speed of 20 MPH.
- ឧបករណ៍៖ Shimano 7-speed gear system for versatile riding.
- សំបកកង់៖ 20" x 4" wear-resistant tires suitable for various terrains.
- ថ្ម៖ 48V 13.6AH Lithium battery.
- ជួរ៖ Up to 70 miles in pedal-assist mode (level 1) and 28 miles in pure electric mode.
- ពេលវេលាសាកថ្ម៖ ប្រហែល 5 ម៉ោងសម្រាប់ការសាកពេញ។
- ហ្វ្រាំង៖ Dual disc brakes for effective stopping power.
- ការផ្អាក៖ Front shock absorber for a smoother ride.
- ភ្លើងបំភ្លឺ៖ LED headlight and rear reflector for visibility.
- បង្ហាញ៖ Smart LCD display showing real-time battery, mileage, speed, and error codes.
- របៀបជិះ៖ Pure electric mode, pedal assist mode (5 levels), and bicycle mode.
- បត់៖ Easy-to-fold design for compact storage (folded size: 35.4"x20.5"x29.3").
- Rear Rack: Sturdy rear rack for carrying items.

Image: Key features of the Gotrax R3 Electric Bike, including 20"x4" fat tires, Shimano 7-speed, dual front suspension, 3 riding modes, and all-terrain capability.
6. សេចក្តីណែនាំប្រតិបត្តិការ
LCD Display Functions:

Image: The smart LCD display on the Gotrax R3 handlebar, providing essential ride information.
- Energy Bar: បង្ហាញកម្រិតថ្មដែលនៅសល់។
- ល្បឿន៖ Shows current riding speed (MPH or KM/H).
- PAS (Pedal Assist Level): Indicates the current pedal assist level (0-5).
- ODO (ឧបករណ៍វាស់ល្បឿន)៖ តាមដានចម្ងាយសរុបដែលបានធ្វើដំណើរ។
- ដំណើរកម្សាន្ត៖ Shows distance for the current trip.
- លេខកូដកំហុស៖ Displays diagnostic codes if an issue occurs.
ការគ្រប់គ្រង៖
- បើក/បិទថាមពល៖ Press and hold the 'M' button for two seconds to turn the display on/off.
- កម្រិតជំនួយឈ្នាន់៖ Use the '+' and '-' buttons on the left handlebar to adjust between 5 pedal assist levels. Level 0 is no assist.
- បិទបើក៖ The throttle is located on the right handlebar. Twist it to engage pure electric mode.
- Headlight Activation: Press and hold the 'M' and '+' buttons simultaneously for 2-3 seconds to turn the headlight on/off.
- Gear Shifter៖ Use the Shimano 7-speed shifter on the right handlebar to change gears manually.
Video: GOTRAX R2/F2 Folding Electric Bike Test - This video demonstrates the riding experience and various features of the Gotrax R2/F2 electric bikes, including display functions and controls.
7. ថ្ម & ការសាកថ្ម
The R3 is equipped with a 48V 13.6AH Lithium battery. It offers two convenient charging methods:
- ការសាកថ្មផ្ទាល់៖ Plug the charger directly into the charging port on the bike.
- Removable Battery Charging: Use the key to unlock and remove the battery from the frame, then charge it separately.
A full charge takes approximately 5 hours. Always use the official Gotrax charger.

Image: The high-capacity 48V 13.6AH Lithium battery, emphasizing its range and charging flexibility.
8. Folding & Storage
The R3's foldable design makes it highly portable and easy to store. The folded size is approximately 35.4"x20.5"x29.3".
ជំហានបត់៖
- Lower the seat post to its lowest position.
- Release the quick-release lever on the handlebar stem and fold the handlebars down.
- Locate the main frame folding latch (near the pedals), release the safety catch, and open the latch to fold the bike in half.
- Secure the folded bike with any integrated clasps to prevent it from unfolding during transport.

Image: Illustration of the Gotrax R3's dimensions and its compact folded size for easy storage.
9. ការថែទាំ
Regular maintenance ensures the longevity and safe operation of your R3 electric bike. Refer to the included instruction manual for a detailed maintenance schedule and specific care instructions.
គន្លឹះថែទាំទូទៅ៖
- Keep tires properly inflated (check PSI regularly).
- Inspect brakes for wear and proper function.
- Keep the chain clean and lubricated.
- ពិនិត្យមើលប៊ូឡុង និងឧបករណ៍ភ្ជាប់ទាំងអស់ ដើម្បីភាពតឹង។
- Store the bike in a dry, cool place.
10. ការដោះស្រាយបញ្ហា
The smart LCD display can show error codes to help diagnose issues. Consult your detailed instruction manual for a list of common error codes and their corresponding solutions. For complex issues, contact Gotrax customer service.
11. លក្ខណៈបច្ចេកទេស
| លក្ខណៈ | ការបញ្ជាក់ |
|---|---|
| ប្រភេទកង់ | កង់អគ្គិសនី |
| ឈ្មោះម៉ូដែល | R3 |
| ម៉ូទ័រ | 500W គ្មានជក់ |
| ល្បឿនកំពូល | 20 MPH |
| ថ្ម | 48V 13.6AH Lithium |
| ជួរជំនួយឈ្នាន់ | Up to 70 miles (Level 1) |
| ជួរអគ្គិសនីសុទ្ធ | រហូតដល់ 28 ម៉ាយ |
| ពេលវេលាសាកថ្ម | 5 ម៉ោង។ |
| ទំហំកង់ | ៤.៧៥ អ៊ីញ |
| ទំហំសំបកកង់ | 20 "x 4" |
| ឧបករណ៍ | Shimano 7-Speed |
| រចនាប័ទ្មហ្វ្រាំង | ហ្វ្រាំងឌីសពីរ |
| ប្រភេទផ្អាក | Dual Front Suspension |
| សម្ភារៈស៊ុម | អាលុយមីញ៉ូម |
| ទំហំបត់ | 35.4"x20.5"x29.3" |
| សមត្ថភាពទំងន់ | អតិបរមា 264 ផោន |
| វិញ្ញាបនប័ត្រ UL | UL2849 |
12. ការធានា និងការគាំទ្រ
Gotrax offers a 365-day part assurance for your R3 electric bike. If you encounter any problems or require assistance, please contact Gotrax customer service. We are committed to providing 100% satisfactory after-sales service.
For customer service, refer to the contact information provided in your physical instruction manual or visit the official Gotrax webគេហទំព័រ។





