Introduction
This manual provides detailed instructions for the safe and efficient operation, maintenance, and troubleshooting of your LEXIN P5 Portable Tire Inflator and C4 Motorcycle Cup Holder. Please read this manual thoroughly before using the products to ensure optimal performance and longevity.

Image: The LEXIN P5 Portable Tire Inflator and the C4 Motorcycle Cup Holder, along with their respective accessories.
Product Overview
LEXIN P5 Portable Tire Inflator
The LEXIN P5 is a compact and powerful portable tire inflator designed for quick and accurate inflation of various tires and inflatable objects. It features a digital pressure gauge, multiple preset modes, and a built-in LED light.
- Maximum Pressure: 150 PSI
- Airflow: 30 L/Min
- Battery: 5000mAh rechargeable
- Functions: Tire inflation, power bank, LED emergency light

Image: A close-up view of the LEXIN P5's digital LCD display, showing pressure units (PSI, BAR, KPA, Kg/cm²) and control buttons for adjustment, power, mode settings, and unit selection.
LEXIN C4 Motorcycle Cup Holder
The LEXIN C4 is a durable and versatile cup holder designed for motorcycles, providing a secure place for beverages. It features a robust mounting system and adjustable capacity.
- Material: High-quality zinc alloy
- Capacity: Fits cups up to 32oz
- Mounting: Fits 7/8" to 1 1/4" handlebars with included spacers
- Rotation: 360° adjustable rotation

Image: The LEXIN C4 Motorcycle Cup Holder securely mounted on a motorcycle handlebar, demonstrating its practical placement for easy access to beverages while riding.
Setup
P5 Portable Tire Inflator Setup
- Charging the Device: Before first use, fully charge the P5 inflator using the provided USB-C cable. Connect the USB-C end to the inflator and the USB-A end to a 5V/2A power adapter (not included). The battery indicator on the display will show charging progress.
- Attaching the Air Hose: Screw the air hose securely onto the inflator's air outlet.
- Selecting Adapters: Choose the appropriate nozzle adapter (e.g., ball needle, Presta adapter) for the item you intend to inflate and attach it to the end of the air hose.

Image: The LEXIN P5 Portable Tire Inflator demonstrating its dual functionality: inflating a tire and simultaneously charging a mobile phone via its USB-A output, highlighting its versatility and built-in LED emergency lighting.
C4 Motorcycle Cup Holder Setup
- Identify Mounting Location: Choose a suitable location on your motorcycle handlebar or pole (7/8" to 1 1/4" diameter).
- Select Spacers: Use the provided thin or thick spacers to ensure a snug fit for your handlebar diameter.
- Attach Clamp: Open the clamp and position it around the handlebar. Insert the appropriate spacers if needed.
- Secure Clamp: Tighten the screws on the clamp firmly to secure the cup holder to the handlebar. Ensure it is stable and does not rotate freely.
- Adjust Angle: The cup holder features a 360° rotation ball joint. Adjust the angle of the cup holder for optimal positioning and tighten the locking mechanism.

Image: A diagram illustrating how the LEXIN C4 Motorcycle Cup Holder fits various handlebar sizes (7/8" to 1 1/4") using different spacers, and demonstrating its 360° rotation capability for flexible positioning.
Operating Instructions
P5 Portable Tire Inflator Operation
- Power On: Press and hold the power button (⏻) to turn on the inflator. The digital display will illuminate.
- Select Mode: Press the mode button (⚙) to cycle through the 5 preset inflation modes: Car, Motorcycle, Bicycle, Ball, and Custom.
- Car Mode: Default 2.4 Bar (approx. 35 PSI)
- Motorcycle Mode: Default 2.7 Bar (approx. 39 PSI)
- Bicycle Mode: Default 38 PSI
- Ball Mode: Default 8 PSI
- Custom Mode: Allows manual setting of pressure from 2-150 PSI.
- Set Pressure (Custom Mode): In Custom mode, use the + and - buttons to adjust the desired pressure value. Each press adjusts by 0.5 PSI. The device will automatically save the last set pressure for future use in custom mode.
- Change Units: Press the unit button (U) to switch between PSI, KPA, BAR, and KG/CM².
- Connect to Item: Securely attach the air hose with the appropriate adapter to the tire valve or inflatable item. The display will show the current pressure.
- Start Inflation: Press the power button (⏻) to begin inflation. The pump will automatically stop once the preset pressure is reached.
- LED Light Function: Press and hold the mode button (⚙) to turn the LED light on or off. This can be used as an emergency light source.
- Power Bank Function: Connect your device to the USB-A output port (5V/2A) on the inflator using a compatible cable to charge it.

Image: The LEXIN P5 Portable Tire Inflator displaying its five smart preset modes: Car, Motorcycle, Bike, Balls, and a customizable option, along with their respective pressure ranges in BAR or PSI.

Image: The LEXIN P5 Portable Tire Inflator actively inflating a tire, with text indicating "2X Faster Inflation" and "1 MIN 25PSI - 45PSI" with "30 L/MIN AIRFLOW," demonstrating its rapid inflation capability.
C4 Motorcycle Cup Holder Usage
- Insert Beverage: Place your cup or bottle into the cup holder. The adjustable inner diameter (2.56" - 3.50") accommodates various sizes up to 32oz.
- Ensure Security: Verify that the beverage is seated securely and does not interfere with motorcycle controls or rider movement.

Image: A visual guide to the LEXIN C4 Motorcycle Cup Holder's large capacity, showing various bottle sizes it can accommodate up to 32oz, and detailing its adjustable inner diameter ranging from 2.56" to 3.50".
Maintenance
P5 Portable Tire Inflator Maintenance
- Cleaning: Wipe the inflator with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the inflator in a cool, dry place away from direct sunlight and extreme temperatures. Use the included rugged carry bag for protection.
- Battery Care: For optimal battery life, charge the device regularly, even if not in frequent use. Avoid fully discharging the battery for extended periods.
- Hose and Adapters: Inspect the air hose and adapters for any signs of wear or damage before each use. Replace if necessary.

Image: The LEXIN P5 Portable Tire Inflator being held in a gloved hand and shown fitting into a small bag, emphasizing its cordless and compact design for easy portability and storage.
C4 Motorcycle Cup Holder Maintenance
- Cleaning: Clean the cup holder with a damp cloth as needed.
- Inspection: Periodically check the mounting screws and clamp for tightness. Re-tighten if any looseness is detected to ensure secure attachment.
- Material Care: The zinc alloy construction is durable, but avoid exposing it to corrosive substances.
Troubleshooting
P5 Portable Tire Inflator Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Inflator does not turn on. | Low battery; Power button not pressed correctly. | Charge the inflator fully. Press and hold the power button for 2-3 seconds. |
| Inflator stops before reaching preset pressure. | Low battery; Air hose not securely connected; Leak in hose/valve. | Recharge the inflator. Ensure air hose is tightly screwed on. Check for leaks and replace hose/adapter if damaged. |
| Inaccurate pressure reading. | Poor connection to valve; Sensor malfunction. | Ensure the air hose is firmly attached to the valve. If problem persists, contact customer support. |
| Slow inflation. | Low battery; Air hose kinked or obstructed. | Charge the inflator. Check air hose for kinks or blockages. |
C4 Motorcycle Cup Holder Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Cup holder is loose on handlebar. | Screws are loose; Incorrect spacers used. | Tighten mounting screws. Ensure correct spacers are used for your handlebar diameter. |
| Beverage does not fit securely. | Beverage size outside of specified range. | Ensure beverage diameter is within 2.56" - 3.50". |
Specifications
LEXIN P5 Portable Tire Inflator
| Feature | Detail |
|---|---|
| Model | P5 |
| Maximum Pressure | 150 PSI |
| Airflow Rate | 30 L/Min |
| Battery Capacity | 5000mAh |
| Input | USB-C 5V/2A |
| Output | USB-A 5V/2A |
| Dimensions | 6.4” x 2.7” x 1.5” (approx.) |
| Weight | 1.1 lb (approx.) |
| Material | Zinc Alloy |
| Operating Modes | Car, Motorcycle, Bicycle, Ball, Custom |
| Pressure Units | PSI, KPA, BAR, KG/CM² |
LEXIN C4 Motorcycle Cup Holder
| Feature | Detail |
|---|---|
| Model | C4 |
| Material | Zinc Alloy |
| Inner Diameter | 2.56" - 3.50" (adjustable) |
| Maximum Capacity | Up to 32oz |
| Handlebar Compatibility | 7/8" to 1 1/4" pole |
| Rotation | 360° |
Warranty and Support
LEXIN products are designed for durability and performance. For warranty information and technical support, please refer to the official LEXIN website or contact their customer service directly.
Website: www.lexinmoto.com (Note: This is a placeholder URL, please refer to your product packaging or official documentation for the correct support contact.)
When contacting support, please have your product model (P5 Inflator, C4 Cup Holder) and purchase information ready.





