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


Go Back   > >

Electronics, Lighting, & Gadgets HRM, GPS, MP3, HID. Whether it's got an acronym or not, here's where you'll find discussions on all sorts of tools, toys and gadgets.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 08-09-08, 04:14 PM   #1
Agabinet
Junior Member
Thread Starter
 
Join Date: Jul 2005
Bikes:
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Cadence meter -- need large digits

I'm looking for a cadence meter that reads cadence in the large digits where speed is usually displayed, instead of in smaller digits up or down in a corner or separate info bar. Ideally I'd like a computer that I can switch from reading speed in the big digits to reading cadence. I know I can jerry-rig a cadence meter with a cheap cmputer, but is there a ready made option out there for me?

Vision going in PA

Ari Gabinet
Agabinet is offline   Reply With Quote
Old 08-09-08, 08:48 PM   #2
twobikes
Healthy and active
 
twobikes's Avatar
 
Join Date: Mar 2007
Location: Caldwell, Idaho USA
Bikes: mid-60's Dunelt 10-speed, Specialized Allez Sport Tripple, Trek 7.2 FX
Posts: 887
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You are going to need one magnet and sensor for measuring cadence from your crankset and another magnet and sensor for reading speed from your wheel. You will also need some sort of slide switch that disconnects the wires from one sensor and connects the wires from the other sensor to the display unit. Jerry rigging such a cyclometer would not be too hard. Good luck on finding a commercial version.
twobikes is offline   Reply With Quote
Old 08-09-08, 09:05 PM   #3
dunningrb
Senior Member
 
dunningrb's Avatar
 
Join Date: Aug 2008
Location: Farmville, VA
Bikes: Trek 5200, Scattante R-560
Posts: 203
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Agabinet View Post
I'm looking for a cadence meter that reads cadence in the large digits where speed is usually displayed, instead of in smaller digits up or down in a corner or separate info bar. Ideally I'd like a computer that I can switch from reading speed in the big digits to reading cadence. I know I can jerry-rig a cadence meter with a cheap cmputer, but is there a ready made option out there for me?

Vision going in PA

Ari Gabinet
Ari, the CatEye Astrale 8 does exactly what you want. I think CatEye is replacing the Astrale 8 with the Strada, which does *not* do this. Unfortunately, the Astrale 8 has become difficult to find. There are a few for sale on Ebay.
dunningrb is offline   Reply With Quote
Old 08-10-08, 04:32 AM   #4
trekker pete
pedalphile
 
Join Date: Jul 2008
Location: ellington, ct
Bikes: trek 1200, 520, Giant ATX 970, Raleigh Talon
Posts: 1,035
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Just out of curiosity, why does one need a cadenceometer? (Is that a word?)

I would think you have a pretty good idea how fast you are spinning, or is serious training improved by close tracking of one's cadence?
trekker pete is offline   Reply With Quote
Old 08-10-08, 04:58 AM   #5
bryce_atx
Senior Member
 
Join Date: Jun 2008
Bikes:
Posts: 56
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The Cateye Astrale 8 does this, as the previous poster said, and the Garmin Forerunner 305 will do this as well, but that might be more than you're willing to spend. There are plenty of places selling the Astrale 8 for around $40. I used one for about 4 years before the wiring harness died (was installed without any slack in the wires, they eventually shorted).

Pete, seeing your cadence is objective; rather than just thinking you're spinning fast, you can see that you've maintained 102rpm for the last few miles. I'd rather know my cadence than my speed.
bryce_atx is offline   Reply With Quote
Old 08-10-08, 06:58 AM   #6
twobikes
Healthy and active
 
twobikes's Avatar
 
Join Date: Mar 2007
Location: Caldwell, Idaho USA
Bikes: mid-60's Dunelt 10-speed, Specialized Allez Sport Tripple, Trek 7.2 FX
Posts: 887
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by trekker pete View Post
Just out of curiosity, why does one need a cadenceometer? (Is that a word?)

I would think you have a pretty good idea how fast you are spinning, or is serious training improved by close tracking of one's cadence?
If you know your cadence continuously in real time, you can use it to guide your shifting. You will find yourself shifting down earlier and more often. When your cadence falls below a certain number you shift. When you shift down your cadence suddenly jumps up 10 - 15 rpms. The end result will be that you will actually turn in a faster time for the same course. You can also determine what cadence is most sustainable for you over a period of hours, not just a momentary spurt. You can also work at increasing your cadence a very few rpm. at a time. In the end you will reap the benefits of a consistently faster cadence. I also thought I did not need to know until I got my hands on a cadence meter. Now two of my three bikes have one. I may soon have one on the third bike, too.
twobikes is offline   Reply With Quote
Old 08-10-08, 07:08 AM   #7
tippy
Senior Member
 
Join Date: Nov 2004
Location: Alabama USA
Bikes: TREK 1000c
Posts: 535
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by trekker pete View Post
... a cadenceometer? (Is that a word?)
Could use "tachometer" if you prefer ...
tippy is offline   Reply With Quote
Old 08-10-08, 07:09 AM   #8
n4zou
Scott
 
n4zou's Avatar
 
Join Date: Jun 2006
Bikes: Too Many
Posts: 2,393
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
A very simple and cheap way to do this is purchase a $10 cycle computer in Wal-mart and set it up to read cadence instead of speed. Here is how to do it.

http://www.instructables.com/id/Very...-Your-Bike-12/

n4zou is offline   Reply With Quote
Old 08-10-08, 08:37 AM   #9
Agabinet
Junior Member
Thread Starter
 
Join Date: Jul 2005
Bikes:
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by trekker pete View Post
Just out of curiosity, why does one need a cadenceometer? (Is that a word?)

I would think you have a pretty good idea how fast you are spinning, or is serious training improved by close tracking of one's cadence?
It's actually for my wife, who is in her second real season of riding and now understands that cadence is important. She wants to be able to work on cadence but can't see the little numbers on her Cat Eye. So, it's either the $12 mph to rpm conversion, or the Astrale. I've been riding long enough to know my cadence within a few rpm usually. I'm a real spinner, I like to stay in the high 90's.

Thanks to all for guidance.
Agabinet 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 10:35 PM.