Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

User Tag List

Reply
 
Thread Tools Search this Thread
Old 01-18-06, 10:33 PM   #1
Wannabe
Junior Member
Thread Starter
 
Join Date: Aug 2004
Bikes:
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Cateye Astrale gone crazy?

Today, I biked to school today and everything was fine. I just wanted to see how far it is from my apartment to school. When I came back, the astrale went crazy. It says I was travelling at max speed of 320.9 mph. It is random news, but hopefully it works again.
Wannabe is offline   Reply With Quote
Old 01-19-06, 06:15 PM   #2
Boudicca
Conquer Cancer rider
 
Boudicca's Avatar
 
Join Date: Sep 2004
Location: Toronto
Bikes: Fun bike, city bike, Bike Friday bike (also fun bike)
Posts: 5,978
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Wireless computer?

Probably picked up interference from a bus, or a cop car, or even the electronic wires they have under the road to change the lights when cars approach an intersection. I gave up using wireless computers for that very reason. They look good, but I was fed up with my top speed coming in at 99.9 mph. Given the figure you got, I guess I shouldn't complain.
__________________
Zero gallons to the mile
Boudicca is offline   Reply With Quote
Old 01-19-06, 06:25 PM   #3
Nubie
Senior Member
 
Nubie's Avatar
 
Join Date: Nov 2005
Location: Chicago, IL
Bikes: '00 Trek 7200, '04 Fuji Newest WSD
Posts: 670
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The Astrale is not wireless, so I don't think that there should be interference from other sources.
Nubie is offline   Reply With Quote
Old 01-19-06, 06:37 PM   #4
free_pizza
later
 
free_pizza's Avatar
 
Join Date: Sep 2004
Bikes:
Posts: 2,471
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Wannabe
Today, I biked to school today and everything was fine. I just wanted to see how far it is from my apartment to school. When I came back, the astrale went crazy. It says I was travelling at max speed of 320.9 mph. It is random news, but hopefully it works again.
Does your astrale have cadence? If so, my cadence meter goes sky high when i have the cranks paralell and im going over a bumpy section, so maybe you had it on cadence mode...
free_pizza is offline   Reply With Quote
Old 01-26-06, 01:15 AM   #5
Wannabe
Junior Member
Thread Starter
 
Join Date: Aug 2004
Bikes:
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It wasn't cadence because I checked the max speed. The problem stopped so I wonder what happen to my cyclocomputer.
Wannabe is offline   Reply With Quote
Old 01-26-06, 04:22 AM   #6
Cyclaholic
CRIKEY!!!!!!!
 
Cyclaholic's Avatar
 
Join Date: May 2005
Location: Sydney, Australia
Bikes: several
Posts: 4,270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 68 Post(s)
Did you at any stage feel like you were going about 10 times faster than traffic?
Cyclaholic is offline   Reply With Quote
Old 01-26-06, 11:53 AM   #7
DieselDan
Senior Member
 
DieselDan's Avatar
 
Join Date: Mar 2003
Location: Beaufort, South Carolina, USA and surrounding islands.
Bikes: Cannondale R500, Motobecane Messenger
Posts: 8,521
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Even wired computers can recieve interferance between the magnet and sensor. My old Vetta was prone to interferance in two certain locations.
DieselDan is offline   Reply With Quote
Old 01-26-06, 11:59 AM   #8
worker4youth
Vanned.
 
worker4youth's Avatar
 
Join Date: Jul 2005
Bikes: 2006 Motobecane Le Champ SL, 2006 Mercier Kilo TT, 2004 Gary Fisher Tassajara
Posts: 1,244
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Why are car sensors so much better than bike sensors? You hardly ever hear of these kinds of problems in any cars.
worker4youth is offline   Reply With Quote
Old 01-26-06, 01:27 PM   #9
twahl
Tom (ex)Builder
 
twahl's Avatar
 
Join Date: Jul 2004
Location: Manassas, VA
Bikes: Specialized Allez
Posts: 2,814
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by worker4youth
Why are car sensors so much better than bike sensors? You hardly ever hear of these kinds of problems in any cars.
Cost and shielding. If there was a similar sensor used on a modern car, it would have rare earth magnets, which are more expensive but much stronger. The wiring would be shielded if it were prone to interference. Other factors go in but it's really a matter of cost. We demand a lot of cool features at a reasonable price when we buy a cyclometer. If we were expecting these functions to come with the bike, so that every bike came with them, they would probably be more reliable, and the greater cost of that reliability would be built into the cost of the bike. I'm sure that pro cyclists pay more for their computers, and demand them to be more reliable.
__________________
Tom

"It hurts so good..."
twahl is offline   Reply With Quote
Old 01-26-06, 03:15 PM   #10
2manybikes
Dog is my co-pilot
 
2manybikes's Avatar
 
Join Date: Jun 2003
Bikes: 2 many
Posts: 15,511
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 21 Post(s)
Once in a while on a bumpy road the switch inside the speed sensor will be bumped so hard it will bounce open and add a few extra "blips" to the ones already being sent to the computer. This of course will give an incredible speed reading. It's a little more common in older computers than new ones. My guess is that the spring tension in the magnetic switches gets a little weaker with use. It's nothing to worry about if it does not repeat itself.

If it does happen again tell your buddies that's how fast you went. Try and look serious....
2manybikes is offline   Reply With Quote
Old 01-26-06, 10:53 PM   #11
SteveE
Veni, Vidi, Vomiti
 
SteveE's Avatar
 
Join Date: Jun 2002
Location: Republic of Anaerobia
Bikes: Serotta Legend Ti, Romani Columbus SL, Soma Doublecross
Posts: 3,582
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Watcha complainin' about?
SteveE is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 10:56 AM.