Commuting - bike computer photo showing correct location of magnet and transmitter

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rumrunn6
05-31-09, 06:13 PM
anyone have a photo showing correct location of magnet and transmitter for their bike computer

I can't quite make out from these instructions how the magnet interacts with the transmitter and what part pf the transmitter should be closest to the magnet

I bought a $10 Schwinn unit from Walmart and the instructions are microscopic


d2create
05-31-09, 06:34 PM
Every company is different but there is usually a line or mark on the transmitter that lines up with the magnet and u usually have to get them VERY close. Other than that it doesn't really matter where u install them.

Bat22
05-31-09, 06:39 PM
Ha, I had a Walmart Schwinn wireless 2 months ago. It was kinda cool as it gave
temperature,and calories used after I put in my height/weight.
Usuallyhave a little pole extending from the fork sensor. Put the magnet on a spoke that
crosses near the sensor. Generally,the magnet side facing as close to the fork sensor
without hitting it on wheel rotation.


lil brown bat
05-31-09, 06:44 PM
My bike computer is not your bike computer. I think your best bet is to find the manufacturer's website and see if you can download a manual.

Bat22
05-31-09, 06:45 PM
P.S. Either get a pair of glasses or get a wallet size magnifying card
like the rest of us.

rumrunn6
05-31-09, 07:30 PM
thanks everyone - got it working

bragi
05-31-09, 07:59 PM
thanks everyone - got it working

I had trouble installing mine, too. Like a previous poster has said, I finally went online to get decent instructions, but not before I asked a couple of stupid questions on BF and people pointed and laughed at me. (I couldn't quite imagine how the cycle computer knew where the magnet was on the spoke, so it could calculate the circumference of the arc it was making, until someone not-so-kindly pointed out that the cycle computer calculates tire circumference * rpm, not the distance of path of the magnet * rpm.)

dandela
05-31-09, 08:07 PM
I am glad you got it working.

I have the same computer from walmart. It is cool to have the temp display especially since I ride in the winter. Unfortunately mine didn't work very well. I also have a CATEYE wireless($49) and a Trek Incite8i computer($39).

The cheaper schwinn model never worked well and I ended up taking it off. Specifically, it wouldn't register speed above 12mph with any consistency. I also noticed it was much slower to change speeds. For example, If i were going 10mph and slowed down it would register 10mph for a long time. I played with positioning for a long time and never got it to work. The other two computers work flawlessly. The Cat Eye is definately the most sensitive for speed changes.

Good luck, DB

bikegeek57
06-01-09, 05:41 AM
suggestion for magnets on crank. I tried using the magnets that came in the kit. had to jury rig the sensor to get it close enough to the crank to register. After a I bumped the crank magnet a few times down the crank decided that's not working. Went to local arts/crafts store and bought some rare earth magnets (very strong didymium) about the same diameter as the kit magnet and stacked them in the hole where the pedal goes on crank (obviously side facing sensor). this gave me extended range as my crank is further away from the 5mm recommended for the sensor. The stronger magnetic field reaches across the 1-2 cm distance no problem does not interfere with the speedo sensor. 3 didymium magnets stacked together stay put and do the job.

rumrunn6
06-01-09, 06:29 AM
cool, and with those magnets you can now nickname your bike The Enterprise