Setting Up Wireless Trip Computer

shane r
shane r Posts: 326
edited April 2011 in Road beginners
I have a wireless computer (Cateye). Does it matter where the sensor is located along the fork? Basically, the magnet has to be a max of 5mm from the sensor. If I put the sensor near the top of the fork it is too far from the sensor for it to pick it up. I have had to locate it nearer the hub.

Safe to assume it will still be accurate?
Coupla Road Bikes

Comments

  • Put the sensor & magnet near the top of the fork, makes for better reception. Distance from sensor to magnet - can't you rotate the sensor towards the spokes to bring it closer to the magnet ?
  • shane r
    shane r Posts: 326
    I couldn't get it within the 5mm so it wouldn't pick up. As the spokes angle out to the fork at the hub it's much easier to get it close there and also the sensor doesn't have to angle out so much.

    It picks up well be i just want to check and see if the reading is accurate regardless of where on the fork.
    Coupla Road Bikes
  • Bar Shaker
    Bar Shaker Posts: 2,313
    Half way up the fork should be fine.

    You can normally get away with more than 5mm. You can hear the sensor click, as the magnet passes it,when it's within range.
    Boardman Elite SLR 9.2S
    Boardman FS Pro
  • shane r
    shane r Posts: 326
    Hmm, it's deffo not half way, see circled...

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    Coupla Road Bikes
  • redvee
    redvee Posts: 11,922
    70cm is the max for Cateye computers, you might be able to get the sensor inside the fork leg and mount the magnet on the wrong side of the spoke.
    I've added a signature to prove it is still possible.
  • pbt150
    pbt150 Posts: 316
    The accuracy won't be affected unless you're mounting it right at the hub - 1 revolution takes the same amount of time regardless of where on the spoke diameter you are.

    It's wise to mount the sensor at the front of the fork rather than the back. If you hit a bump your sensor could be deflected into the wheel and wreck some spokes, if it's at the front the sensor will just get flicked out of the way.
  • shane r
    shane r Posts: 326
    pbt150 wrote:
    The accuracy won't be affected unless you're mounting it right at the hub - 1 revolution takes the same amount of time regardless of where on the spoke diameter you are.

    It's wise to mount the sensor at the front of the fork rather than the back. If you hit a bump your sensor could be deflected into the wheel and wreck some spokes, if it's at the front the sensor will just get flicked out of the way.

    Now that's something I hadn't thought of.
    Coupla Road Bikes
  • Bar Shaker
    Bar Shaker Posts: 2,313
    Mine sits pretty much mid fork and, yes, faces forwards.

    5aT9TRx4.jpg
    fpSxVAEs.jpg
    Boardman Elite SLR 9.2S
    Boardman FS Pro
  • shane r
    shane r Posts: 326
    Cheers mate, that's really useful :D
    Coupla Road Bikes
  • bruce225
    bruce225 Posts: 129
    Just took my Cateye Micro sensor off the back of the fork and put it on the front of the fork,due to this thread, prior to this never had any concerns..

    And must say it looks odd,so switched it back,pure vanity reasons.

    But the Micro sensor is very large...
  • Thebigbee
    Thebigbee Posts: 570
    Bar Shaker wrote:
    Half way up the fork should be fine.

    You can normally get away with more than 5mm. You can hear the sensor click, as the magnet passes it,when it's within range.

    Yes - that is really annoying when that happens and makes riding a chore, not a pleasure unless you are listening to something.

    I think is because the spoke doesn't accept the magnet properly - I had the same clicking noise before on a hybrid - I don't know on a new hybrid from the same maker?!!

    Unless it was just bad fitting on my part - it wasn't..
  • twoodley
    twoodley Posts: 80
    As it is wireless you could fit it to the rear wheel, which is where the ones with cadence are fitted. This way the clicking noise will be behind you.
    Giant Defy Advanced Pro 1
  • redvee
    redvee Posts: 11,922
    twoodley wrote:
    As it is wireless you could fit it to the rear wheel, which is where the ones with cadence are fitted. This way the clicking noise will be behind you.

    This will be out of the range of the transmitter/receiver. Cateye recommend a max of 70cm, I tried with my Cateye, whilst my Edge 705 is in hospital, and it doesn't work.
    I've added a signature to prove it is still possible.
  • twoodley
    twoodley Posts: 80
    The reason I mentioned putting it on the rear wheel is because that is where mine is fitted.
    Perhaps it has a stronger transmitter if you have the cadence sensor version, as it has to go on the rear wheel to get a reading from the pedal.
    Giant Defy Advanced Pro 1
  • Thebigbee
    Thebigbee Posts: 570
    BRUCE225 wrote:
    Just took my Cateye Micro sensor off the back of the fork and put it on the front of the fork,due to this thread, prior to this never had any concerns..

    And must say it looks odd,so switched it back,pure vanity reasons.

    But the Micro sensor is very large...

    I have mine fitted on the left fork, about halfway down and the Cateye logos etc are all facing out. I also have my computer mounted on the stem for no other reason than symetry. Have a Smart Polaris mounted on the bars to the right where it would fit.

    Great computer - shocking manufacturer for prices of spare fitting kits for 2 bikes!

    You may as well buy a full new computer just for the sensor and fitting kit and then flog the computer alone.

    Example - Fitting Kit http://www.wiggle.co.uk/cateye-cl200cl3 ... tting-kit/

    Whole new computer with the fitting kit - http://www.chainreactioncycles.com/Mode ... elID=41402

    lol - people are getting ripped off somewhere along the line - Cheers Cateye...