TopAction B12/B12W Wired/Wireless Bike Computer User Manual

Introduction

Welcome to the TopAction B12/B12W series bike computer. This manual provides detailed instructions for installation, operation, and maintenance to help you get the most out of your cycling experience.

The B12 and B12W models offer reliable performance for tracking your rides, whether you prefer a wired connection or the convenience of wireless technology.

Package Contents

Before you begin, please verify that your package contains the following items:

• TopAction B12/B12W Bike Computer Unit
• Mounting Bracket
• Sensor (for B12W model)
• Magnet (for B12W model)
• Cable Ties
• Battery (CR2032)
• User Manual

If any items are missing or damaged, please contact TopAction customer support.

Product Overview

Bike Computer Unit

The main unit features a clear LCD display and several buttons for navigation and setting adjustments.

• Display: Shows speed, distance, time, and other ride data.
• Mode Button: Cycles through different data screens and functions.
• Set/Adjust Button: Used for setting parameters and confirming selections.
• Power Button: Turns the unit on/off.

Visual Description: The bike computer is a compact device, typically rectangular with rounded edges, designed to be mounted on a bicycle handlebar. The front features a multi-segment LCD screen. Below or to the side of the screen are physical buttons, usually labeled or indicated by function.

Installation

Proper installation ensures accurate data readings and secure mounting.

Mounting the Bike Computer

1. Select a suitable location on your handlebar. Ensure it does not obstruct your view or interfere with steering.

2. Attach the mounting bracket to the handlebar using the provided cable ties. Securely tighten the ties.

3. Slide the bike computer unit onto the bracket until it clicks into place.

Visual Description: The bracket is a plastic holder that wraps around the handlebar. Cable ties are threaded through the bracket to secure it. The computer unit has a corresponding slot or clip mechanism that mates with the bracket.

Installing the Wireless Sensor and Magnet (B12W Model)

1. Attach the magnet to a spoke on the front wheel. Ensure it passes close to the fork when the wheel rotates.

2. Mount the wireless sensor on the front fork of the bicycle. Position it so the magnet will pass within 5mm (approx. 0.2 inches) of the sensor as the wheel turns.

3. Secure the sensor and magnet using the provided cable ties.

4. Ensure the sensor is oriented correctly relative to the magnet for optimal signal transmission.

Visual Description: The magnet is a small, strong piece of metal that attaches to a bicycle wheel spoke. The sensor is a slightly larger plastic unit that attaches to the bicycle's front fork, positioned to detect the passing magnet. Both are secured with plastic zip ties.

Basic Operation

Powering On/Off

Press and hold the Power button for a few seconds to turn the unit on or off. The unit may also power on automatically when it detects motion or a signal.

? Power On: Press and hold Power button.

❌ Power Off: Press and hold Power button.

Setting the Clock

1. After powering on for the first time, the clock display will likely flash, indicating it's ready for setting.

2. Use the Set/Adjust button to select the hour, then press Mode to move to the minutes.

3. Use Set/Adjust again to set the minutes, then press Mode to confirm.

Note: The clock can be reset via the settings menu.

Cycling Through Modes

Press the Mode button to cycle through the different data screens:

• Current Speed
• Odometer (Total Distance)
• Trip Distance
• Average Speed
• Maximum Speed
• Elapsed Time
• (Other functions may be available depending on model and accessories)

Key Functions and Features

The TopAction B12/B12W bike computer tracks essential cycling metrics.

Settings and Customization

Personalize your bike computer settings for accurate and relevant data.

Wheel Size Setting

Accurate wheel circumference is crucial for speed and distance calculations.

1. Enter the settings mode (usually by holding the Set/Adjust button).

2. Select the wheel size option.

3. Use Set/Adjust to input your wheel circumference in millimeters (mm). Refer to your tire sidewall for recommended sizes or measure manually.

4. Press Mode to confirm and save.

Visual Description: The display will show a numerical value representing wheel circumference, typically in millimeters. Buttons are used to increment or decrement this value.

Unit Selection

Choose your preferred units for speed and distance.

1. Navigate to the unit setting in the settings menu.

2. Select between Metric (km/h, km) and Imperial (mph, miles).

3. Confirm your selection.

Maintenance

Battery Replacement

The bike computer and wireless sensor (if applicable) use CR2032 batteries.

1. Open the battery compartment on the unit/sensor (usually by twisting or prying a cover).

2. Remove the old battery and insert a new CR2032 battery, observing correct polarity (+/-).

3. Securely close the battery compartment.

Note: Battery life varies with usage and environmental conditions. Low battery indicators may appear on the display.

Cleaning

Clean the unit and bracket with a soft, damp cloth. Avoid using abrasive cleaners or solvents, as they can damage the plastic casing or display.

Visual Description: A soft cloth is shown wiping the bike computer unit.

Troubleshooting

Here are solutions to common issues:

Specifications

Model: B12 / B12W

Brand: TopAction

Battery Type: CR2032

Wireless Frequency: (If applicable, e.g., 2.4GHz)

Operating Temperature: -10°C to 50°C (14°F to 122°F)

Water Resistance: (e.g., IPX4 - splash proof)

Note: Specifications are subject to change without notice.

Contact Information

For support, warranty information, or to purchase accessories, please visit the TopAction website or contact authorized distributors.

Website: www.topaction.com.tw

Please refer to the product packaging or website for specific contact details.