FAQ

To connect the new Wireless Controllers, press and hold both buttons at the same time until the indicator light flashes green, then complete the connection in the Control Display.
If the indicator light flashes red, the battery is low and should be replaced.

Yes. For third-party bike computers, users need to purchase the required mounting adapter separately.
In addition, the Avinox Control Display and the Avinox Ride app already include comprehensive ride data, navigation, and other built-in features. We recommend trying the native system first. If you need additional functionality or have suggestions, we’d be happy to hear your feedback.

No. This is not currently supported.

The following models have been tested and confirmed to be compatible:
DJI Osmo Action 5 Pro
DJI Osmo Action 6
DJI Osmo 360

It depends on the account you sign in with:
1. Signing in with the same account: Yes. Ride data is stored in the cloud and tied to your account, so you can still view your ride history in the app after pairing again.

2. Signing in with a different account: No. To protect user privacy, local data is cleared when the bike is unpaired, and a new account cannot access the previous account’s ride data.

Location accuracy is usually affected by satellite acquisition and environmental obstructions.
1. Inaccurate location when powering on
During a GNSS cold start, initial satellite acquisition can take longer, typically 3-5 minutes. When powering on the bike, move it to an open area to help the system acquire satellites more quickly.

2. Inaccurate location while riding
Buildings, metal structures, and other obstructions may weaken the signal, causing temporary delays or missed location updates. Once you return to an open area, the signal will recover and the location will update automatically.

Amflow PX automatically adjusts its maximum speed to comply with the regulations of the country/region you are in. Speed limits for major countries/regions are as follows:
European Union: 25km/h
United Kingdom: 25km/h
United States: 20mph
China: 25km/h
Australia: 25km/h

1. Assistance:
Adjusting the level of assistance involves modifying the assistance ratio of the drive unit. Increasing the assistance amplifies the assistance ratio, lessening the rider's pedal effort and making the ride easier. Conversely, reducing the assistance decreases the assistance ratio, increasing the rider's pedal effort and enhancing the rider's sense of participation in the ride.

2. Assistance Range:
The assistance range refers to the range of the assistance ratio of the drive unit. The minimum value of the assistance range represents the assistance ratio for riding on flat surfaces, while the maximum value represents the assistance ratio for riding on steep slopes. Within the rider's set assistance range, the assistance ratio dynamically adjusts based on the road gradient and resistance. If the rider sets the minimum and maximum values to the same number, the output of the assistance becomes independent of the road gradient and resistance, and the assistance will always be maintained at the set value by the rider.

3. Max. Torque in Auto and Trail modes:
The maximum torque represents the upper limit of the acceleration torque and also determines the upper limit of the bike's acceleration. Lowering the maximum torque slows down the bike's acceleration, while increasing it speeds up the acceleration. In this scenario, if one aims to achieve the same level of acceleration as with higher torque, additional effort from the rider is necessary.

4. Max. Torque in Eco and Turbo modes:
The maximum torque represents the maximum assistance value of the drive unit. Increasing the maximum torque can lead to faster acceleration under similar road conditions and easier uphill riding. However, on surfaces with low traction, such as icy roads, the rear wheel is more prone to slipping. Conversely, reducing acceleration and uphill riding becomes more strenuous, but the bike is less prone to slipping on such surfaces.

5. Assisted Start:
The Assisted Start determines the rate at which assistance increases from a pedal stop to pedal resumption. Boosting the Assisted Start facilitates easier incline starts and pedaling resumption after a stop on inclines. However, excessive Assisted Start can lead to instances of slipping and wheel lift during incline starts. Riders should prudently adjust this setting based on their abilities and road conditions. Reducing the Assisted Start diminishes acceleration during starts on flat ground.

6. Continued Assist:
The Continued Assist determines the sensitivity of the assist response to the rider's pedaling force. Increasing the Continued Assist enhances the responsiveness of the assist, leading to a quicker increase when the rider applies more force and a faster decrease when less force is applied. Conversely, decreasing the Continued Assist reduces the sensitivity of the assist, resulting in a slower increase when more pedal force is applied and a slower decrease when less force is applied.

7. Motor Overrun
Motor Overrun indicates the ongoing assistance provided for a duration after pedaling has ceased, gradually diminishing based on the assistance level at the point of stopping. Increasing the Motor Overrun prolongs this continued assistance. Motor Overrun is not continuously active. By assessing the bike's speed at the moment of pedal stopping, if significant acceleration is detected after ceasing pedaling, the overrun assistance will be proactively disengaged to ensure safety. When riders need to navigate significant obstacles such as tree roots, we recommend initially applying a strong pedal stroke before stopping to enhance the intensity of the overrun assistance, thereby aiding the rider in overcoming the obstacle more effectively.

Yes. If the Drive Unit is off or the battery has run out, you can ride it like a non-electrical bicycle by pedaling.

To ensure battery safety, it is recommended to use the original charger. If the charger is lost, please contact a dealer for assistance.

Battery installation/replacement requires removing the Drive Unit. It is recommended to visit the nearest Amflow authorized store for assistance, or if there is no store nearby, please contact online customer service for support.

144km.

^{* The 144km range was measured on a flat paved road with an 80kg rider on Amflow PX Carbon Pro (700Wh). Testing was conducted in the Eco assistance mode at a cadence of 65rpm and a speed of 21kph, with default assist settings. Actual range depends on factors like temperature and wind speed. Results may vary.}

Using the Avinox 508W Charger
0–80%: 1h 16min
0–100%: 1h 46min

Using the Avinox 168W Charger
0–80%: 3h 54min
0–100%: 4h 52min

It is recommended to store the bike indoors and maintain a certain level of charge in the lithium battery to prevent irreversible damage to the Drive System from extreme weather and temperatures.

The battery is equipped with a battery health management system, which ensures battery health even when not fully charged.

Yes, you can download the Avinox Ride app and pair it with your bike. When a new version is available, the app will send an update prompt. Simply follow the instructions to update.

Currently, Avinox Ride app push notifications can only pop up on iPhone and Huawei phones, and phones that support the Google framework. Please stay tuned for further updates on other phone models.

Press and hold both buttons on either the Right or Left Wireless Controller for five seconds until the indicator light flashes green rapidly. Then, attempt to re-pair.

Amflow PX meets ASTM4 standards and can be used on both paved and unpaved surfaces. With the fork and rear shock air pressure set to 25-30% sag, and properly tuned, it can handle a maximum load of 125kg, a maximum speed of 40kph, and a maximum drop height of 122cm.

Yes, it is normal. The Control Display and GPS module generate heat, and the Control Display absorbs sunlight, so it is normal for the Control Display temperature to rise and, accordingly, for it to feel warm to the touch when in use.
Amflow PX's Control Display is equipped with a temperature sensor beneath the screen; if an abnormal screen temperature is detected, an error code will be displayed on the screen and an alarm will sound.

No. The maximum speed should comply with the regulations of the country/region where it is being used. Amflow does not provide a method to remove the speed limit.

The normal operating temperature is -10° to 40°C (14° to 104°F).

When Amflow PX is off, you can use the Avinox Ride app through the IoT services to check its battery level and location. If the bike's location is abnormal, you will receive a notification from the Avinox Ride app and can choose to remotely authorize unlocking or maintain the locked state and silence the alarm.

^{* Free IoT service is included with Amflow PX Carbon Pro. For Amflow PX Carbon, users must purchase an IoT Nano SIM card separately to access these features.}

Yellow light indicates standby, red light means charging, and green light signifies a full charge.

0° to 40°C (32° to 104°F).

It is suggested to stay below 5000m.

It uses an ISIS interface. It is recommended to use the official crank for optimal compatibility.

First, prepare an IoT Nano SIM card. Amflow PX Carbon Pro comes with one pre-installed.
Remove the Amflow PX Control Display, install the IoT Nano SIM card behind the screen, and then you can connect to the network.

Remote control enabled: approximately 200MB per month
Ride data upload enabled: approximately 200MB per month.

You can purchase one from a local carrier. Please comply with local regulations.

Each Wireless Controller uses a CR1620 battery. Under normal usage, the battery life is approximately one year.

Yes. Amflow PX can be used with two, one, or zero Wireless Controllers.

The Drive Unit has a rated power of 250W and a peak power of 750W.

Amflow PX uses a mid-drive motor.

We currently recommend the following models:
iGPSPORT HR70
Garmin HRM4-Run
XOSS X2 Pro
Polar H9
Wahoo TICKR
HUAWEI WATCH FIT 4 Pro
Garmin Fenix 8

When your bike is equipped with the SRAM Eagle Transmission, SmoothShift automatically detects gear changes and the drive unit assists the freewheel in completing the shift, delivering a seamless shifting experience.
To use SmoothShift, please ensure:
1. Your bike's firmware is updated to V01.03.01.01 or later (update via the Avinox Ride app if needed).

2. The bike is equipped with the SRAM Eagle Transmission.

3. The SRAM Eagle Transmission rear derailleur is powered via the Avinox M2 Series Electronic Rear Derailleur Power Cable (SRAM AXS). For cable availability, consult your local SRAM dealer, an authorized Amflow dealer, or Amflow online support.

4. SmoothShift is enabled on the Control Display. For your safety, disable this feature and set motor assistance to OFF during maintenance or non-riding situations.

With firmware V01.03.01.01, riders can choose to adjust to 1500 watts of peak power in Auto, Trail, and Turbo modes. Please comply with local laws and regulations when using it.

The current Avinox hardware and firmware are not compatible with third‑party battery extenders. Using an unauthorized battery extender may cause product malfunction and will void your warranty. In severe cases, it could cause component damage or pose a fire hazard.
Avinox now offers a removable battery (Avinox RS600 Battery), available for purchase on the official website. For more information about the range extender battery, please stay tuned to official Avinox announcements.

We provide a 5-year warranty for the Amflow PX carbon fiber frame (excluding paint finish) for the original owner. If ownership is transferred, subsequent owners are covered by a 2-year warranty from the original factory shipment date.
If your frame cracks, please submit an after-sales service request. Our support team will contact you after receiving your request to assess repair or replacement options.

1. Bottle cages: Compatible with most standard bicycle bottle cages on the market.

2. Bottle size: Due to the rear suspension layout inside the frame, we recommend using a compact 16oz (approx. 450ml) bottle.

^{* Internal frame clearance may vary slightly by frame size. We recommend checking fitment during installation.}

We do not recommend it. The Amflow PX frame geometry has been professionally tuned around a 160mm travel fork.

The maximum load capacity is 125kg, which includes the rider's weight, any additional items being carried, and the weight of equipment mounted onto the frame.

No. The Drive System must use official Avinox components. Any modifications to the Drive System will void the warranty and may violate legal requirements.
If parts are damaged, please contact customer service to purchase spare parts.

Yes. Amflow PX supports both electronic and mechanical shifting.
It is recommended to use a shifting system that meets the requirements for eMTB use. BCD104 chainrings can be used.

Any 31.6mm-diameter dropper post can be installed. Please refer to the specs page for installation depth.

Dropper post travel:
M/L Frame: 190mm
XL Frame: 210mm
XXL Frame: 230mm

Dropper post installation depth:
M: 260mm
L: 270mm
XL: 290mm
XXL: 310mm

Amflow Dropper Post Shim (adjustable travel: 0/5/10/15/20/25mm)

Upper headset bearing: inner diameter 30.5mm, outer diameter 41.8mm, height 8mm
Bearing specification: 45°/45°
Lower headset bearing: inner diameter 40mm, outer diameter 52mm, height 7mm

Bearing specification: 45°/45°

^{* If replacement is needed, please contact after-sales support for purchasing information.}

The two main pivot bearings are model 6901, located above the Drive Unit. The remaining 10 pivot bearings are model 6801.

32T, 34T, 36T, and 38T chainrings are supported. If using a spider-mounted chainring, please select BCD104.
After replacement, update the settings in the Avinox Ride app to ensure accurate power assistance output.

The front wheel can accommodate up to a 29-inch diameter and 2.8-inch tire width; the rear wheel can accommodate up to a 29-inch diameter and 2.6-inch tire width.
We recommend using Amflow PX's matching tires: 2.5 inches wide for the front and 2.4 inches wide for the rear.

Amflow PX comes standard with a mullet setup, featuring a 29-inch front wheel and a 27.5-inch rear wheel.
You can also switch to a 29-inch rear wheel. To do so, you will need to adjust the chainstay flip chip to match the geometry and update the wheel size setting in the Avinox Ride app to ensure accurate speed calculation.
Please note that installing a 29-inch rear wheel will change the frame geometry accordingly. Click here for detailed information.

For detailed information on servicing and maintenance, please refer to the FOX official website. FOX provides maintenance for the fork and rear shock. Here are some suggestions from Amflow for using the shock absorbers:
1. Set the sag before each ride.
2. Adjust the rebound before each ride.
3. Clean the shock absorbers after each ride.
4. Service the air chamber after every 50 hours of riding.
5. Reapply lubricant to the aluminum alloy shock pivot after every 50 hours of riding.
6. Take your fork/shock to a FOX dealer for inspection and maintenance after 150 hours of riding (or once annually).

The frame is compatible with 210×55mm rear shocks. The original rear shock has been fine-tuned for internal damping according to Amflow PX's four-bar linkage leverage curve.
It is recommended to use the original rear shock or a shock absorber of the same model with the same damping.
If you plan to install a different rear shock model, please ensure that it does not interfere with the frame during operation.

Due to natural wear and tear of the components, Amflow PX requires maintenance. Here is how to extend the lifespan and optimize performance for different parts:
1. Shock absorbers: Set the air pressure and adjust the compression and rebound settings according to the riding conditions before each ride. Clean the shock absorbers after each ride. Service the air chamber and reapply lubricant to the aluminum alloy shock pivot after every 50 hours of riding. Take your fork/shock to a FOX dealer for inspection and maintenance after every 150 hours of riding (or once annually).

2. Bike chain: Always clean the chain, remove dirt, and re-lubricate. A well-maintained chain should be replaced after about 1000 kilometers of riding to prevent excessive wear on the chainrings. Use a dedicated chain checker to determine whether or not the chain requires replacement.

3. Crankset, chainrings, and cassette: The wear on these components largely depends on riding style, maintenance, and the environment. It is recommended to service them at an authorized store every six months.

4. Brake fluid: Brake fluid should be replaced annually to ensure excellent brake performance.

5. Rotors: Keep the rotors clean and free of dirt. Do not touch them with your hands, as the natural oils on fingers and hands can negatively affect brake pad performance. Clean promptly after riding on muddy roads. Dirty brake pads will wear out more quickly and affect braking performance, potentially causing significant noise when braking.

6. Pedals: Lubricate the pedal threads thoroughly before installation to reduce noise.

7. Grips: Grips are coated with rubber. If the rubber becomes porous or greasy over time or after exposure to the sun, it is recommended to replace them with new grips.

8. Wheelset: Wheelset should not have any vertical or lateral wobble. If you notice the wheelset has been impacted, you can go to a professional bike shop to adjust the spoke tension to correct any offset caused by impact.

9. Tires: Tires should always have sufficient tread for adequate grip on roads or trails. If you find sidewall damage when inspecting the tires, replace them promptly.

Amflow PX comes with tubes, but both the wheelset and tires are compatible with a tubeless setup. You can easily convert to tubeless using a tubeless valve and sealant.

There is no limit to the number of spacers. However, it is recommended to use no more than three, all installed below the stem.

Amflow PX comes standard with an air shock, and installing a coil shock is not recommended. Doing so may cause frequent bottom-out or abnormal frame stress. Frame damage caused by using a shock that does not meet factory-recommended specifications is not covered under warranty.

The geometry of Amflow PX is designed around a 160mm-travel fork. Testing has shown that it can also be fitted with a 170mm-travel fork. However, this will result in a slacker head tube angle (changing from 64.2° to 63.5°) and seat tube angle (changing from 78° to 77.3°), as well as an increase in bottom bracket height (from 345mm to 350mm). Please consider whether a replacement is necessary based on your actual riding needs. If you plan to install a different fork model, please ensure that it does not interfere with the frame during operation.

For transportation, please use the original packaging/box you received upon purchase and pack it as it was when first opened.
If the packaging/box is lost, you can purchase new transportation materials from the Amflow online store to safely transport your bike.
If you have any other questions, please visit the official Amflow website and fill out the service form to contact us. The Amflow customer service team will get in touch with you as soon as possible and provide assistance.

1. Ensure the battery is adequately charged.
2. Check the thickness of the brake pads and rotors.
3. Inspect the tire pressure and wear on both the front and rear tires.
4. Check the screw torque at the main pivots of the frame.
5. Check the air pressure, rebound, and compression damping of both the fork and rear shock.
6. Examine the chain for wear.
7. If you are wearing non-cycling pants during the ride, please use leg straps to secure your pant legs. This will help prevent them from getting caught in the bike's moving parts, which could result in personal injury or damage to the bike.

All models in the Amflow PX series meet the Category 4 bicycle requirements outlined in ASTM F2043-13. This category not only covers the riding conditions of Categories 1, 2, and 3, but also includes suitability for technical downhill, trail, and uphill riding.
With the fork and rear shock air pressure set to 25-30% sag and properly tuned, Amflow PX can handle a maximum load of 125kg, a maximum speed of 40kph, and a maximum drop height of 122cm. Please note that it is important to inspect the bike for any damage after each ride.

We recommend wearing a properly fitted cycling helmet in all riding scenarios.
For professional off-road riding, professional protective gear and a suitable helmet are recommended.
For urban riding, please consult your local traffic authority for specific regulations.

You are eligible for our Return & Refund Service if you made purchases through Amflow Official Online Store and meet the following conditions: Within thirty (30) calendar days starting from 00:00 on the day after receiving a product if the packaging, accessories, complimentary products, and user manuals are intact, the product is unused, the Drive System is not activated, there is no damage due to user-related factors, and the second sale is not affected.

To facilitate a smooth return process, kindly retain the original packaging during the return period. This will enable repackaging in the event of a return, thereby minimizing the risk of damage during transportation.

For more details, refer to After-Sales Policies.

We've got you covered. We provide warranty repair service for the main parts manufactured by Amflow. You can apply for warranty repair service if the under-warranty product has a manufacturing defect.
The warranty periods for the main parts of the Amflow product are as follows:
1) Carbon Fiber Frame (Excl. Paint and Graphics): 5 years for the original owner; if transferred, the warranty will be limited to 2 years from the date of shipment from Amflow to the original owner.
2) Stem, Handlebar, Wheels, Paint and Graphics: 2 Years.
3) Accessories* : 1 Year.
This limited warranty specifically excludes any parts (including but not limited to transmission, brakes, and suspension) not manufactured by Amflow. However, Amflow is authorized by the manufacturer of the Drive System (including drive unit, battery, display, wireless remote, charger and bike lights) to provide warranty service in accordance with the warranty policy on the Drive System manufacturer’s official website. The warranty period for the Drive System is 2 years, and the battery is covered for 2 years with up to 500 charge cycles. Other parts are covered directly by the corresponding third-party manufacturer in accordance with their warranty policy.
You can find information about the service coverage and details of the Amflow warranty on the after-sales policies page.

* Accessories include bike lights, bells, pumps, and torque key provided with the bike.

Outdoor bikes, due to their natural usage, may cause wear and tear to parts such as tires, rubber stopper, and transmission components when used for extended periods on uneven surfaces or exposed to outdoor conditions. The extent of wear and tear is influenced by factors such as your usage patterns, environmental conditions, and maintenance of the product. It is difficult to accurately estimate the extent of wear based on duration of use. Therefore, Amflow's warranty policy does not cover easily worn parts.
Easily Worn Parts include: Tires, Screws & Nuts, Gaskets & Washers, Bearing, Rubber Stopper, Grips, Cables, Transmission components (Chain, Chainring, Cassette), Fender & Cover Plate, and Saddle Fabrics.
For more details, refer to After-Sales Policies.

Our aim is to guarantee worry-free riding for you. Throughout the warranty period for the Amflow carbon frame and carbon wheel, if you damage your frame or carbon wheel by accident and it's not covered under warranty, we can offer a discounted replacement service once to the original owner. The specific discount shall be determined by Amflow at the time of service.

If there is an issue with your bike, we suggest reaching out to the nearest Amflow authorized dealer. They can assist you with repair services or help you submit a warranty repair service request. Alternatively, you can directly contact Amflow official customer service for technical support, purchasing repair parts, or applying for warranty repair services.