Once the magnet is installed, attach the sensor to the fork or stay. Test the computer and make any needed adjustments to sensor or magnet position before securing the wire or attaching the mounting shoe to the handlebar.
Most cyclecomputers come with plastic
Once the magnet and sensor magnet are installed, turn the bike upside down in the repair stand and remove the front wheel. This will make it easier to secure the wire.
Front-Mount Cable Routing
The wire should run up the back side of the fork blade, slightly to the inside. This is not only more aerodynamic, but it helps keep the wire inconspicuous. If the sensor is mounted in front of the fork blade, make sure that the wire crosses back on the inside of the blade. Leave a very small amount of slack were the wire leaves the sensor to where you begin to secure it to the fork, just in case slight sensor adjustments become necessary later.
The most common mistake in wire routing is to attach the wire to the head tube of the frame. This should never
Usually, I prefer to run the wire up along the back side of the brake cable, securing it to the cable with clear tape. If the wire is longer than it needs to be, the excess can be bundled up and tucked into the bottom of the steerer.
For bikes that are likely to be overhauled often, it is more convenient to wrap the wire around the brake cable in a spiral. This makes it easier to disconnect the wire for headset service, handlebar swaps, etc. The downside of the spiral wrap approach is that is can be unattractive, especially on bikes with bright colored brake cable housing.
When you install
Suspension forks actually are easier to install cyclometers on. Run the cable up the slider to the brake bridge, then follow the cable housing to the handlebar.
The sensors from some cyclecomputers won't fit the large diameter legs of suspension forks. If you have a box of old junked front derailers, you were right not throw them away. Many older model front derailers were secured to the frame by two bolts running through
If that is all too much trouble for you, the easy way to install a cyclecomputer on a suspended bike is with a rear mount kit.
Rear-Mount Cable Routing
Wires from rear mount cyclecomputers or cadence pickups should always be run under the chainstay, under the bottom bracket and under the down tube. This keeps them out of sight.
For mountain bikes or hybrids, secure the wire to one of the gear shift cables running from the down tube to the handlebar mounted shift lever.
For bikes that don't have handlebar mounted shift levers, it is usually best to run the wire from the down tube directly to the bottom of the front brake cable, then follow up as with front mounts. You must allow sufficient slack to allow the handlebars to turn as far as they can possibly go in both directions without tugging on the wire, or the wire will surely break.
The slack loop must be kept clear of the tire. If the wire can possibly touch the tire, it will, and it will wear away to nothing in no time at all.
The slack loop should be kept where it will not get in the way of normal operation