A bike computer is a handy device that measures and displays various travel information useful for a cyclist. It is displayed on a compact display that is mounted on the steering wheel or on a special bracket.
Instructions
Step 1
The basic set of functions found in almost all bicycle computers is the current, average and maximum speed for a trip, kilometers traveled, travel time and current time. There are also functions for displaying the total time and mileage for the entire history of using the device. Typically, this functionality is sufficient for entry to intermediate cyclists. Although, depending on the specific manufacturer, the set of functions may be different.
Step 2
Professional cycling computers can show cadence, energy efficiency and cyclist heart rate, air temperature, barometric pressure and altitude, and have LED backlit displays. The most advanced models have the functions of a full-fledged GPS navigator, although the price for such models may exceed the price of the bike itself.
Step 3
The basic bike computer is powered by a reed switch or a Hall sensor attached to the front fork or rear stays. A magnet attached to the spoke, passing by the sensor, informs it about the wheel revolution traveled. The computer then calculates the wheel speed, speed and distance traveled. For the computer to work correctly, it needs information about the circumference of the wheel, which is entered manually by the user. Advanced models have an extended set of sensors: additional Hall sensor on the pedals, thermometer, barometer, altimeter, heart rate sensor.
Step 4
In inexpensive models, the Hall sensor or reed switch is connected with a wire. More expensive computers use radio or Bluetooth technology to transmit data. The device is powered by batteries or rechargeable batteries. Inexpensive models with a wired connection are enough for 1-3 years. Models with wireless connection - 3-6 months. In addition, wireless models have separate batteries in each of the sensors. Navigation devices require recharging every 10-20 hours of operation. Most computers are equipped with a backup power supply that allows data to be retained when off or when the main battery fails.
Step 5
All computer models are designed for self-installation and customization by the user. The installation consists in fixing the necessary sensors, a magnet and a display, and a competent wiring. Magnets attached to a spoke are often lost, so when buying a computer, you need to take care of having a spare one. Setting - in the input of the current time and the circumference of the wheel. The latter indicator can be calculated using tables or simply measured with a tape measure.
