Now you can have cadence, trip distance, average speed, total distance, etc. on your bike without having to pay the extra $800.
Step 1: Materials:
1/2" copper tubing 1.5 - 2" long
Black Electrical Tape
2 Zip ties
Clear silicone caulk
Step 2: Mount computer to handlebar
Step 3: Mount the Speedometer Sensor
Next I Put some black electrical tape on so that the copper wouldn't stand out... It would have been better to paint it
Next I mounted the speedo sensor to the copper tube like you would on a bike.
Then I slipped the notched tube in behind the allen screw and tightened it to the chain guard.
THE FIRST PHOTO IS SHOT FROM BELOW LOOKING UP. YOU CAN SEE HOW THE NOTCH IN THE TUBING IS TIGHTENED UNDER THE SCREW. THE SECOND PHOTO IS MORE OF A SIDE VIEW
Step 4: Run the Cadence Sensor and Attach
Basically i coiled the cable down one of the forks like usual. But as you can see I just used electrical tape to hold it in place. (lame I know ) I was not sure that I wanted to drill into the chainguard and run it inside ( mostly because I did'nt want to cut the cable )
I mounteed the sensor/reed switch first so that I could get it in the right spot so the magnet on the crankarm would work.
I used clear silicone to glue it into position and put some black electrical tape on after it had dried.
Step 5: Attach Magnet to crankarm
This caused the problem of the ziptie inching the magnet toward the bottom bracket and moving the magnet away from the sensor causing it not to pick up the cadence (note the crankarm gets smaller)...
I solved this with... You guessed it...some silicone caulk on the magnet and ziptie and a second zip tie below.