Cadence sensor issue

[juanpelota]

Wondered if this had been covered before.
I've purchased a wireless speed and cadence computer. The speed sensor is no problem, however the cadence sensor is, because of the distance between the pedal and the mounting for the sensor. The chain stays are slightly tapered leaving a large gap between them and the sensor on the pedal crank. The gap is approximately one inch.

The bike is a BH Race One.

Has anybody come across this before and resolved it?
Thanks
Juan

 

[steve52]

i mounted my sensor on myforward down tube because of that problem

 

[juanpelota]

Thanks Steve.

Perhaps I should have mentioned the sensor unit is one piece i.e. the cadence and the speed sensors are housed together, so not sure if I can do that, as I won't pick up the wheel magnet. Thanks for your input tho'.

Juan

 

[ttcycle]

What's the model/make of your computer? Do you have photos?

That may help people to answer your query.

 

[juanpelota]

Yes, good idea ttcycle

It's a Cateye Strada Wireless.

[Pic attached, hopefully ].
As you can see there's quite a gap between the pedal and sensor.

So far, I've tried

• Fixing it above and below the chain stay (turning it upside down)
• adjusting the unit via the screw in the middle as the instructions suggest to open the unit a little
• throwing the bike in a ditch (similar to Alberto Contador).... no seriously

Other than fixing some form of block to the pedal, or buying a wired version I'm running out of ideas.

Any suggestions welcomed.
Thanks
Juan

 

[phil_hg_uk]

Are you sure you have that mounted correctly here is the sensor for my cateye V2c computer

 

[juanpelota]

Yep, exactly as the instructions say.
The cadence sensor is in the larger block on my model, as opposed to yours which is in the 'arm'.

 

[smokeysmoo]

Obvious one but, have you loosened the tiny 'sensor screw' to allow you to pivot the speed and cadence sensors?

This might allow you to find a equidistant balance between the two.

 

[ttcycle]

I don't have this model but are you able to push it towards the pedal at all through adjustments etc?

 

[ufkacbln]

The simplest option is a longer magnet!

I fitted a strong 10 mm x 10 mm magnet on to the pedal axle, inside the crank arm socket. The magnet holds itself in place

This worked well and solved a similar issue.

 

[smokeysmoo]

I don't have this model but are you able to push it towards the pedal at all through adjustments etc?

You may not have this model, but it's the same sensor. When you loosen the senosr screw you can move each sensor independantly, so you can move the speed sensor closer to the wheel magent while also moving the cadence sensor closer to the crank arm magnet.

BTW, you did say you have the Cateye Strada Wireless, this should have a fork mounted speed sensor and doesn't do cadence, the sensor in your pic is the same one as the Cateye Double Wireless. Where did you buy it from?

 

[phil_hg_uk]

Just looked at the cateye double wireless manual and you should be able to move the sensor body more toward the crank and then loosen the screw on the arm and swing it in towards the wheel.

As shown here:

 

[juanpelota]

Obvious one but, have you loosened the tiny 'sensor screw' to allow you to pivot the speed and cadence sensors?

This might allow you to find a equidistant balance between the two.

Yep, but still can't reach the specified 3mm (or near enough to make it work).

 

[juanpelota]

You may not have this model, but it's the same sensor. When you loosen the senosr screw you can move each sensor independantly, so you can move the speed sensor closer to the wheel magent while also moving the cadence sensor closer to the crank arm magnet.

BTW, you did say you have the Cateye Strada Wireless, this should have a fork mounted speed sensor and doesn't do cadence, the sensor in your pic is the same one as the Cateye Double Wireless. Where did you buy it from?

Sorry, it's the Cateye Double Wireless, and I've tried the adjustment with the sensor screw but can't get near the 3mm requirement.

 

[phil_hg_uk]

Yep, but still can't reach the specified 3mm (or near enough to make it work).

Which bit isnt close enough ?