Thread: ORGS build up
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Old 10-28-2012, 03:31 PM   #215
x3300 OP
geoff
 
Joined: Mar 2005
Location: San Jose, CA
Oddometer: 170
Speedo Sensor

The Trail Tech computer uses a reed switch and magnet for its speed sensor. I used some high-temp epoxy to mount the magnet in the hole of one of the brake disk buttons.

http://stuff.gotdns.org/bike/orgs-build-up/56-speedo-sensor/magnet.jpg

With the magnet fixed I tried different locations for the reed switch and decided that mounting at the top of the caliper adapter gave the best cable routing while giving a good signal. I drilled and tapped a hole in the adapter for it.

http://stuff.gotdns.org/bike/orgs-build-up/56-speedo-sensor/sensor.jpg

Here's how I routed the sensor cable up along the brake line with a few nylon ties.

http://stuff.gotdns.org/bike/orgs-build-up/56-speedo-sensor/cable.jpg

At first I used the brake line guide I had made up before, but it was a tight fit for both the brake line and sensor cable.

http://stuff.gotdns.org/bike/orgs-build-up/56-speedo-sensor/old-guide.jpg

I didn't want the brake line to get hung up and kinked, so I made a new guide from a block of hard plastic I had. I put a 22 mm hole in it and made the base a little wider to better match the 58 mm fork upper.

http://stuff.gotdns.org/bike/orgs-build-up/56-speedo-sensor/compare.jpg

Here's the drawing I made up for the new guide.

http://stuff.gotdns.org/bike/orgs-build-up/56-speedo-sensor/guide-drawing.jpg

The new guide with the cable routed through it.

http://stuff.gotdns.org/bike/orgs-build-up/56-speedo-sensor/new-guide.jpg

-x3300

x3300 screwed with this post 10-28-2012 at 03:57 PM Reason: Add guide drawing.
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