Thermometer for handlebars
Thermometer for handlebars
Hi. My old computer, Bontrager Trip 200, died on long trip in northern Norway. It had a very accurate thermometer, which I found very useful, especially when nearing freezing. Its replacement, bought on the trip, does not, and I cannot find any that have one.
So, does anyone know of a simple thermometer to mount on the bars?
Thanks, Rob
So, does anyone know of a simple thermometer to mount on the bars?
Thanks, Rob
Re: Thermometer for handlebars
Lezyne computers have a built in thermometer.
Whatever I am, wherever I am, this is me. This is my life
https://stcleve.wordpress.com/category/lejog/
E2E info
https://stcleve.wordpress.com/category/lejog/
E2E info
-
- Posts: 11024
- Joined: 7 Jul 2014, 9:45pm
- Location: Near Bicester Oxon
Re: Thermometer for handlebars
Pricey, but I'm sure a search will find them for £4.99 somewhere
https://www.amazon.co.uk/Company-CyclGa ... B075V9TG8V
Like this:
https://www.ebay.co.uk/itm/304569331240 ... 1&mkcid=28
Lower...
https://www.aliexpress.com/item/1005004 ... Redirect=y
https://www.amazon.co.uk/Company-CyclGa ... B075V9TG8V
Like this:
https://www.ebay.co.uk/itm/304569331240 ... 1&mkcid=28
Lower...
https://www.aliexpress.com/item/1005004 ... Redirect=y
-
- Posts: 8399
- Joined: 31 Jan 2007, 6:46pm
- Location: Horwich Which is Lancs :-)
Re: Thermometer for handlebars
Garmins have a thermometer.
I stand and rejoice everytime I see a woman ride by on a wheel the picture of free, untrammeled womanhood. HG Wells
Re: Thermometer for handlebars
I wasn't aware that mine does, I'll have to investigate, although I can tell if I am cold, warm or hot without a thermometer.
[Edit]
I think that should be "some Garmins do". There is no sign of mine having one https://www.garmin.com/en-GB/p/611996#specs
Richard M
Cardiff
Cardiff
Re: Thermometer for handlebars
The one in my Lezyne Mini GPS is useless. It registers over 37 °C on a 30 °C day if I've left it on the bike out in the sun. It then takes at least ten minutes to get anywhere close to the correct temperature once I'm moving, and is still biased a couple of degrees high when I'm not in the shade.
In winter, it takes at least ten or fifteen minutes to get to below 0 °C from my garage temperature, or my house temperature if I've had it charging inside.
Funny that burying an thermistor inside a piece of black plastic isn't a great design for an air temperature thermometer.
Re: Thermometer for handlebars
I found temperature on my old Super gps like yours inaccurate. I find the current one Y12 Mega XL a lot better. It lives permanently outdoors though as I’ve electric in my bike shed. My last rides shows a variation of 4F on the day. The drop shown in the middle is in a forest up a hill and under constant tree cover.Andy Stow wrote: ↑23 Sep 2022, 8:29pmThe one in my Lezyne Mini GPS is useless. It registers over 37 °C on a 30 °C day if I've left it on the bike out in the sun. It then takes at least ten minutes to get anywhere close to the correct temperature once I'm moving, and is still biased a couple of degrees high when I'm not in the shade.
In winter, it takes at least ten or fifteen minutes to get to below 0 °C from my garage temperature, or my house temperature if I've had it charging inside.
Funny that burying an thermistor inside a piece of black plastic isn't a great design for an air temperature thermometer.
Whatever I am, wherever I am, this is me. This is my life
https://stcleve.wordpress.com/category/lejog/
E2E info
https://stcleve.wordpress.com/category/lejog/
E2E info
Re: Thermometer for handlebars
I wish it were as easy as riding a bike
Re: Thermometer for handlebars
Digital is the way to go with thermometers.
The problem with analogue dials, is the the range is usually way too wide. Car speedometers for instance.
30mph is about an inch off zero, and the dial goes right up to 140mph when the car couldn't manage 90!
Why have a thermometer that starts (for instance) at zero degC and goes up to 100degC ?
Minus ten to plus 40 would do on a bike, and the dial divisions could be read easily.
The problem with analogue dials, is the the range is usually way too wide. Car speedometers for instance.
30mph is about an inch off zero, and the dial goes right up to 140mph when the car couldn't manage 90!
Why have a thermometer that starts (for instance) at zero degC and goes up to 100degC ?
Minus ten to plus 40 would do on a bike, and the dial divisions could be read easily.
Mick F. Cornwall
Re: Thermometer for handlebars
I fail to see how a thermometer on the bars could possibly be accurate. It would be exposed to sunlight, wind and rain, all of which could significantly distort the readings.
-
- Posts: 2913
- Joined: 11 Jan 2007, 12:20pm
Re: Thermometer for handlebars
Sigma computers have a thermometer.
https://web.sigmasport.com/product/bc-10-0-wr/
https://web.sigmasport.com/product/bc-12-0-wr/
https://web.sigmasport.com/product/bc-14-0-wr/
https://web.sigmasport.com/product/bc-10-0-wr/
https://web.sigmasport.com/product/bc-12-0-wr/
https://web.sigmasport.com/product/bc-14-0-wr/
“I'm not upset that you lied to me, I'm upset that from now on I can't believe you.”
― Friedrich Nietzsche
― Friedrich Nietzsche
Re: Thermometer for handlebars
I have a Garmin Tempe under my saddle pouch.
Usually reads the temperature "as it is" as it's under and in the wind.
Profiles for instance from the last couple of rides.
Usually reads the temperature "as it is" as it's under and in the wind.
Profiles for instance from the last couple of rides.
Mick F. Cornwall
Re: Thermometer for handlebars
How does the wind affect the temperature reading of a thermometer?
Thanks
Jonathan
Thanks
Jonathan
Re: Thermometer for handlebars
In normal dry conditions, wind won't affect the reading by much.
If it is wet as well as windy, then evaporation from the wet surface will cool the thermometer, depending on the wind speed . This is like the "feels like" temperature you yourself feel when it's raining.
If the sun is shining (and it's not wet), any device mounted in the sun will over-read, by maybe10 degrees or more. But if it's windy as well as sunny, the over-reading will be less because the wind will counteract the heat absorption from the sun's energy. That's easy to demonstrate - just look at the temperature while you're riding on a sunny calm day (when you're making your own breeze) then stop for 20 minutes and look at the temperature again - it's sure to be higher because of less wind.
So, to conclude - if it's wet, wind will make the thermometer under-read - but reflect what you feel yourself.
If it's in the sun, wind will also make it read lower, but actually make it more accurate!
Chris F, Cornwall