[bikeqld] Cheap speedo for MTB?

[Stephen Viller]

Hi there,

The thing I found tricky wasn't so much the diameter of the shocks,  
but the extra distance between the sensor on the shock leg and the  
magnet/whatever mounted on a spoke. I had to fit the sensor much  
closer to the axle than I have it on my road bike.

I'm using a Sigma Targa on my mountain bike because it had extra thick  
sensor wire so less likely to snap of caught on stuff off-road. Don't  
think they sell it any more though. Sigma use o-ring -like rubber  
bands to fit computer & sensor to bike, so more scope for dealing with  
different tube widths, but you can always replace with zip-ties if you  
want extra security.

Stephen.

On 12/11/2009, at 9:27 AM, kim wrote:

> Hi Anthony,
>
> Many of the cheaper units use a cable tie strap arrangement to mount  
> the magnetic sensor on the fork, so as long as that strap is long  
> enough it should go around your fork tubes ok. Probably pretty easy  
> to strap it yourself if the provided means were not long enough tho.  
> The cheapest ones around town are probably about $15 or so at Kmart  
> or Target for just the basic functions and most of the bike shops  
> would have some sort of basic unit for maybe $20 and a few. Not much  
> to them at the low end $ so probably not much difference in quality.  
> Look for a strong clip on the display unit as some just fall off in  
> transit. If you are ok with using the eBay you can plug in "bicycle  
> speedometer" and get a couple of pages of cheap units, most will get  
> posted from Hong Kong. You are then looking at $5 all up with  
> postage. You can get a few more features, like real time clocks,  
> service interval alarms, cadence, temperature etc. for about $20 if  
> you need. There wireless versions are not much more so you don't  
> have to worry about routing the wire up to the handlebar unit.
> cheers
> k
>
> Anthony Lee wrote:
>> Hi all,
>>
>> With those big fat front shocks, could someone please recommend a  
>> cheap speedo for MTBs?
>>
>> Thank you
>>
>> Anthony Lee
>> The Doctor -- the last of the Time Lords?
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