1. Introducció
This manual provides essential information for the safe assembly, operation, maintenance, and troubleshooting of your Gotrax Dolphin 26" Electric Bike. Please read this manual thoroughly before your first ride and retain it for future reference. Understanding the features and functions of your e-bike will ensure a safe and enjoyable riding experience.
2. Informació de seguretat
AVÍS: Porteu sempre casc i l'equip de seguretat adequat quan aneu amb la vostra bicicleta elèctrica. Obeïu totes les lleis i normes de trànsit locals.
- Feu una inspecció prèvia a la conducció abans de cada ús, comprovant els frens, els pneumàtics i totes les connexions.
- Assegureu-vos que la bateria estigui ben fixada al seu lloc abans de conduir.
- No conduïu sota els efectes de l'alcohol o les drogues.
- Adjust the seat and handlebars to a comfortable and safe riding position.
- Sigues conscient del teu entorn i condueix a la defensiva.
- The product is UL2849 safety certified.
3. Muntatge i muntatge
The Gotrax Dolphin electric bike is designed for easy assembly, with most of the work completed prior to shipping. Tools and clear instructions are provided in the box.
3.1 Desembalatge i inspecció inicial
Carefully remove all components from the packaging. Inspect for any damage that may have occurred during transit. Ensure all parts listed in the packing list are present.
Image: Components of the Gotrax Dolphin Electric Bike as they appear in the box, protected by foam packaging.
3.2 Muntatge de la roda davantera
Attach the front wheel to the fork, ensuring the disc brake rotor is correctly aligned with the caliper. Secure the wheel using the quick-release mechanism or axle nuts as per the detailed instructions.
Image: A person demonstrating the attachment of the front wheel to the bike frame.
3.3 Handlebar and Seat Adjustment
Adjust the handlebar angle and seat height to achieve a comfortable and ergonomic riding position. Ensure all quick-release levers are tightened securely after adjustment.

Image: Adjustable handlebars of the Gotrax Dolphin Electric Bike, allowing for customized riding comfort.

Image: A hand adjusting the height of the comfortable seat on the Gotrax Dolphin Electric Bike.
4. Instruccions de funcionament
The Gotrax Dolphin offers diverse riding experiences with multiple modes and pedal-assist levels.
4.1 Engegada/Apagada i Visualització
To power on the bike, press and hold the power button on the handlebar control panel. The display will show battery level, speed, and pedal-assist level. To power off, press and hold the power button again.
Image: Close-up of the handlebar display and controls, showing battery, speed, and pedal-assist indicators.
4.2 Modes de conducció
The bike features three riding modes:
- Mode elèctric pur: Engages the motor without pedaling, controlled by the throttle.
- Mode d'assistència de pedals: Provides motor assistance while you pedal. Offers 5 adjustable levels of assistance.
- Mode normal de bicicleta: Functions as a traditional bicycle with no motor assistance.

Image: A rider on the Gotrax Dolphin Electric Bike, illustrating its capabilities including max speed of 20 MPH, 30 miles max range (pedal-assist), 15.5 miles pure electric mode, and 5.5 hours fast charge.
4.3 Pedal-Assist Levels
Use the '+' and '-' buttons on the control panel to cycle through the 5 pedal-assist levels. Higher levels provide more motor assistance.
4.4 Mode Boost
To activate Boost Mode, press and hold the 'M' button for 2-3 seconds. This provides a 6 Km/h (3.7 mph) boost, reducing riding fatigue. Press any button to exit this mode.

Image: A rider pushing the Gotrax Dolphin Electric Bike uphill, demonstrating the Boost Mode feature which makes uphill pushing easier.
4.5 Canvi de marxes
The bike is equipped with a Shimano 7-speed system. Use the gear shifter on the right handlebar to change gears. Lower gears minimize strain on your feet, especially on inclines.

Imatge: Primer pla view of the 7-speed gear system on the rear wheel of the Gotrax Dolphin Electric Bike.
5. Manteniment
Regular maintenance ensures the longevity and safe operation of your Gotrax Dolphin Electric Bike.
5.1 Cura de la bateria
The 280.8Wh removable battery can be charged on or off the bike. Charge for approximately 5.5 hours for a full charge. Store the battery in a cool, dry place when not in use.

Image: A sequence of images showing how to remove and charge the battery of the Gotrax Dolphin Electric Bike.
5.2 Sistema de frens
The bike features dual disc brakes for powerful stopping. Regularly check brake pads for wear and ensure brake levers are responsive. Adjust brake cables as needed.

Imatge: Primer pla view of the dual disc brakes on the Gotrax Dolphin Electric Bike, highlighting their safety feature.
5.3 Pneumàtics
Maintain proper tire pressure for optimal performance and safety. Inspect tires regularly for punctures or excessive wear.
5.4 Neteja general
Netegeu la bicicleta regularment amb anuncisamp drap. Eviteu utilitzar dolls d'aigua a alta pressió directament sobre els components elèctrics.
6. Solució De Problemes
If you encounter any issues with your Gotrax Dolphin Electric Bike, refer to the following common solutions or contact customer support.
- La bicicleta no s'encén: Check battery charge level and ensure the battery is correctly inserted and locked.
- El motor no ajuda: Verify that pedal-assist mode is active and not set to '0'. Check for any error codes on the display.
- Brakes feeling loose: Inspect brake cables and pads. Adjust cable tension or replace worn pads.
7. Especificacions
| Característica | Especificació |
|---|---|
| Tipus de bicicleta | City Bike, Electric Bike |
| Motor | 350W Brushless (Peak 500W) |
| Velocitat màxima | 20 MPH |
| Max Range (Pedal-Assist) | 30 milles |
| Autonomia màxima (purament elèctrica) | 15.5 milles |
| Bateria | 280.8Wh Removable Lithium Battery (36V) |
| Temps de càrrega | 5.5 hores |
| Mida de la roda | 26 polzades |
| Engranatges | Shimano de 7 velocitats |
| Suspensió | Amortidors davanters |
| Frens | Fre de disc dual |
| Material del marc | Alumini + ABS |
| Pes de l'article | 22.2 quilograms (49.6 lliures) |
| Recomanació de pes màxim | 264 lliures |
| Alçada mínima de l'usuari | 5.2 peus |
| Certificació UL | UL2849 |

Image: Detailed diagram of the Gotrax Dolphin Electric Bike with key dimensions, recommended height, load capacity, and bicycle weight.
8. Garantia i Suport
Gotrax provides a 365-day part assurance and customer support. If you experience any problems, please contact Gotrax customer service for assistance. They are committed to providing satisfactory after-sales service.
For customer support, please refer to the contact information provided with your purchase or visit the official Gotrax weblloc.





