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Specialized Bicycle Computer Instructions

By Rocco Pendola

Bicycle computers are a wonderful way to take your cycling experience to the next level. By showing you your current, average and top speed, among other standard and optional values, you can better assess your fitness and progress as a cyclist. A Specialized Bicycle Computer is a solid choice for beginners and experienced cyclists. It is a snap to install and easy to use in conjunction with your rides.

Computer Mount Installation

Remove your bicycle's stem cap in order to install the steerer tube mount that will hold your Specialized Bicycle Computer. Place the steerer tube mount ring on top of your stem and replace the stem cap, ensuring that the computer mount is parallel to your stem.

Speed Sensor Installation

Determine whether you have a wired or wireless Specialized Bicycle Computer. For both wired and wireless set-ups, loosely secure the speed sensor to the left or right fork blade of your bicycle. Locate the sensor as close to the top of the fork as possible using the rubber sensor mounting pad. Be certain that the cap of the battery door points toward the ground.

Loosely install the sensor magnet to a spoke on the front wheel so that the magnet lines up with the line on the bottom edge of the sensor. These two parts must communicate to produce computer data, so they must be lined up and be no more than 2 millimeters from each other.

Once aligned, tighten the speed sensor to the fork and the magnet to the spoke.

For wired installations, feed the wire along the fork and wrap excess wire around your brake cables until the wire reaches your previously installed computer mount. Use electrical tape--not zip ties--to secure the wire in place.

Programming Your Computer

Press and hold the "PREV" key to begin programming your Specialized Bicycle Computer. Program the time first. Press the "NEXT" key to select a 12- or 24-hour clock. Press "PREV" to select your setting. Pressing "NEXT" will scroll through options and pressing "PREV" will select a setting throughout. Set the hour and then the minutes. Press "PREV" to accept and move on to the setting that allows you to select your wheel size. In order for the sensors to communicate properly with the computer, it must know your wheel size. This is an extremely important step.

Look at the sidewall of your front bicycle tire. The size of your tire is printed on your sidewall. It will be a number followed by a "X" sign followed by another number. For example, a common mountain bike tire size is "26 X 1.95" while a common road bike tire size is "700 X 23." Specialized Bicycle Computers come with a pre-programmed list of 14 sizes. Scroll through this list by pressing "NEXT" to find yours. If you find it, press "PREV" to select.

The pre-programmed sizes in your computer make up the vast majority of possible tire sizes. If your size is not listed, you will need to figure out the exact circumference of your wheel manually.

Find an open flat surface. Make a mark on your tire and the floor in the exact location where they meet. Roll your bicycle forward one complete wheel revolution. Make a mark on the floor where that revolution is complete. Measure the distance from the first mark to the second mark in millimeters and enter it into your Specialized Bicycle Computer.

Use the "NEXT" and "PREV" buttons as mentioned to scroll to "manually set wheel size" and enter your value.

Continue through the setup process to set the odometer. Choose your desired value between mph and kph. Upon completing this setting, your computer is ready to operate.

Additional Notes and Tips

If at any time you wish to reset your Specialized Bicycle Computer, press and hold the "PREV" and "NEXT" keys together. This will reset all values to zero.

Periodically check your speed sensor and magnet to be certain they are secure. Over the course of normal riding, they may come loose. This is normal, but they must be secure and aligned for your computer to produce accurate data.

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