Te speedo cable defect

[TRAILDUDE]

I am on my second speedo cable in six months, and it just broke again. The wires at the connector on the speed indicator side of the cable keep breaking.

Anyone else having this problem with he 08's ?

 

[Dirtdame]

I am on my second speedo cable in six months, and it just broke again. The wires at the connector on the speed indicator side of the cable keep breaking.

Anyone else having this problem with he 08's ?

I have an 07 that recently broke one of the wires near the connector up top. I spliced it back together and put a rubber sheath over it. I think that on my bike, the inner wire is very brittle and inflexible. I took a low speed fall in the sand at the desert and the next thing I knew I was going zero miles per hour down a sand wash in fifth gear. Didn't seem like enough to break a wire.

 

[Mercury264]

I had a wire snap near the speedo - no idea why. I fixed that but I am still getting hit and miss readings. I think the way the cable runs from the outside of the caliper is a little suspect - it's way out in the open there.

I plan on fitting a bicycle speedo over the winter.

 

[eldgenb]

I just broke mine in the same spot, getting it warrantied then I will shrink tube the two inches they deemed not necessary..

 

[Seahorse]

Replaced the "Hamlin" sensor on my bike yesterday. Simply a matter of staggering the solder joints inside the reinforced cable and covering the bare section of wiring with shrink-wrap. You can give it two layers if you like (I used 6mm shrink-wrap). You need to leave a reasonable length to enable moulding the cable around the brake caliper so that it is not exposed.

Firstly you need to confirm whether the problem is actually in the sensor or a broken wire between the sensor and the speedo.

New sensors are available....

The picture shows a couple of nylon nuts....These are not necessary as the sensor simply screws into the brake caliper..

 

[Coffee]

Replaced the "Hamlin" sensor on my bike yesterday.

This is incredibly embarrassing, not sure I've heard of Hamlin. Seems to be a company that originated in the USA:
http://www.hamlin.com/index.cfm


Hamlin seems to be a world wide company that makes reed & hall effect sensors, and many other things. Here is a sensor page that might be of interest - their web site is nicely laid out.
http://www.hamlin.com/product-group.cfm?prodcatid=2


www.Digikey.com seems to carry them as well. This link may or may not work in the future:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=1966289&keywords=hamlin

Thanks!

 

[Seahorse]

Look here on the Hamlin site for availability and suppliers...


http://www.hamlin.com/stock-check.cfm?part1=59070

Unfortunately most of the suppliers do have minimum order numbers, so, unless you can organise a "Group-Buy", it may be easier to do as I did, and purchase from this guy on eBay. (The unit itself is extremely light, so I would imagine postage to USA would not be an issue....)


http://cgi.ebay.com.au/Sensor-KTM-S...3286.c0.m14&_trkparms=66:2|65:1|39:1|240:1318

BTW...forgot to mention that these units do tend to wear out. I was getting hit and miss readings on mine so went through the fault finding process to eliminate damaged wiring etc. Ended up giving the sensor a bit of a bang on the benchtop and it came good for a couple of rides.

A good way of testing your unit is to remove the sensor from the caliper and wave a magnet past the end quickly enough to simulate the wheel turning...Very easy to watch your speedo readout while you are doing this...

When installing the sensor, be careful to not twist the wiring. Also ensure that the sensor tip does not protrude beyond the end of the thread near the brake disc, as it will be subject to damage. The wiring from the sensor to the cable shield should be moulded in around the brake caliper to avoid snagging. I used some small cable ties to secure it.

 

[scoobywrx05]

Good info to know, Thank You for posting it.

 

[seymore]

My sensor cable broke the wires near the connector. It was replaced under warranty and I added a couple of layers of heat shrink from the connector body and the cable jacket.

This worked fine for a month and then the wires broke from the speedo wire harness. So, be sure to heat shrink both sides of the connector.

 

[braydon]

How do you tell if your speedo sensor is broken ??

 

[Tessier]

Any idea what the correct digikey part number is?

 

[stushusky]

The cable is a little short IMO and as it's attached to the brake hose it rides up and down with that as the forks compress.
At full compression it can literally rip the wire out of the plug. I extended the wire loom about 3" to give the cable some slack the a couple of zip ties to attach to the brake hose. Also make sure it's not wrapped around anything else in the wiring behind the headlight.