cateye astrale 8
1008
Member
1192 days
PJT posted 2 years ago.
I've got the same computer on my road bike. The important thing is to make sure that the sensors and magnets line up. My cadence magnet is way out towards the end of the left crank arm, just below the hole for the pedal. My spoke magnet is roughly at the halfway point on the spoke so that it lines up with the speed sensor out on the left chainstay. The sensors on this computer can be pretty tricky and have to be lined up just right to get a reading, so be prepared to experiment a little with their positioning.
114
Member
1136 days
jtaltendahl posted 2 years ago.
i have my cadence magnet is also out near the end of the crank arm...it was the only place it would be still as there is a large groove down the entire arm...it reads a cadence, but im not sure if it is right as im not sure if it makes a difference where it is placed...
the spoke magnet is about in the middle and also gives a reading...is it correct though?
1008
Member
1192 days
PJT posted 2 years ago.
jtaltendahl wrote:
i have my cadence magnet is also out near the end of the crank arm...it was the only place it would be still as there is a large groove down the entire arm...it reads a cadence, but im not sure if it is right as im not sure if it makes a difference where it is placed...the spoke magnet is about in the middle and also gives a reading...is it correct though?
Dunno if it's correct or not, I copied someone else who had theirs set up by their LBS. It works, which seems to me the best way to measure these things.
114
Member
1136 days
jtaltendahl posted 2 years ago.
sounds good man...i suppose as long as they are consistent readings, whether or not they are exactly correct isn't all that important.
834
Member
1360 days
JamieM posted 2 years ago.
Placement of the cadence sensor doesn't matter. As long as the magnet and sensor line up, put it whereever it fits best. Same for the wheel sensor, jsut maek sure to have the correct factor put into the computer.
91
Member
1003 days
runpuddrun posted 2 years ago.
Like you, I too have a groove on my crank where the cadence sensor is supposed to go. You don't by nay chance have a Felt S32 do you? I just added a couple extra pieces of tape to raise to sensor so that it would be tight against the crank and pulled the zip tie as tight as I could get it. works good and I love the astrale 8.
"To give anything less than your best is to sacrifice the Gift."
"Somebody may beat me, but they are going to have to bleed to do it."
"A lot of people run a race to see who's the fastest. I run to see who has the most guts."
"Something inside of me just said 'Hey, wait a minute, I want to beat him,' and I just took off."
"I'm going to work so that it's a pure guts race at the end, and if it is, I am the only one who can win it." -Steve Prefontaine
114
Member
1136 days
jtaltendahl posted 2 years ago.
actually i do have an s32...i haven't had it out for more than an hour though...stupid minnesota winter...all of the snow was gone and it was 50 last friday...and today we got about 8-10 inches of the stuff...i thought all of the snow was gone so i bought a new bike instead of new skis....crap!
91
Member
1003 days
runpuddrun posted 2 years ago.
It was 77 here on Saturday and I took my new S32 out for 55 miles. First time on a tri-bike and I loved every second of it. you are gonna like yours also. The cadence and speed on my astrale 8 worked flawlessly also.
"To give anything less than your best is to sacrifice the Gift."
"Somebody may beat me, but they are going to have to bleed to do it."
"A lot of people run a race to see who's the fastest. I run to see who has the most guts."
"Something inside of me just said 'Hey, wait a minute, I want to beat him,' and I just took off."
"I'm going to work so that it's a pure guts race at the end, and if it is, I am the only one who can win it." -Steve Prefontaine
77
Member
1420 days
Matt Hill posted 2 years ago.
I love my Astrale! It's been the best bike computer i've ever owned.
They don't put specifics for placement in the manual because frames and spoke patterns are different from bike to bike. Like the other folks above have said, just get the sensors and magnets in sensible places so they don't catch anything (like spokes or cranks) and where they can read each other. Within a couple of mm's is ususally fine for spacing.
Enjoy your cadence training!
147
Member
1314 days
rcortesi posted 2 years ago.
I'm a big fan of cateye. I think the Mitty 8 is the best computer at its price.
I wanted to start training with cadence and so I replaced the Mitty 8 with an Astrale 8. Unfortunately the cadence function on my Astrale 8 as stopped working... grrr
Here are my criticisms of the Astrale 8:
1) The odometer can not be manually set
2) No Pace Arrows
3) It is has two wires running from the handle bars, not just one. This makes running the wires harder to do neatly with no extra slack.
And I just went through the trouble of getting the stem mount for it so I read it with the aerobars on.
I think I'm looking for a wireless solution...
--
"Outside a dog, a book is man's best friend.
Inside a dog it is too dark to read."
Groucho Marx
for athletes http://rogercortesi.com/athleticlog/
for nerds http://rogercortesi.com/eqn/
46
Member
1154 days
BIGNEW posted 2 years ago.
I just bought an Astrale 8, but it doesn't have my wheel size on their sheet. I have a 650 x 19c wheel and tire. Does anyone have the same set up, and tell me what code you entered. How do you figure out the circumference based on 650 x 19c. I know you can measure the wheel, but I didn't know if there was a formula for using 650 x 19.
147
Member
1314 days
rcortesi posted 2 years ago.
BIGNEW wrote:
I just bought an Astrale 8, but it doesn't have my wheel size on their sheet. I have a 650 x 19c wheel and tire. Does anyone have the same set up, and tell me what code you entered. How do you figure out the circumference based on 650 x 19c. I know you can measure the wheel, but I didn't know if there was a formula for using 650 x 19.
1. Get a tape measure and a piece of chalk.
2. Start the bike with valve at the very bottom of the wheel.
3. Mark this point on the pavement. Roll through one complete revolution (I follow a crack in the sidewalk to make sure I go in a straight line).
4. Make the spot were the valve comes to the very bottom. 5. Measure the distance.
6. Enter the value (in cm) into the cateye. 2.54 cm to an inch if you don't have a metric tape measure.
I usually repeat a couple of times and take the average. Then I ride on a trail with mile markers to get a feeling of how close I got.
But if you are off my 2cm don't sweat it that would be just over over a 1% error (or an error of 53 feet per mile)... wobbling back and forth as your ride will introduce way more error than this.
Or ditch the chalk/tape measure and just look at the chart and pick a value between the two tire sizes that get closest to yours... again you will likely be within 1%.
Roger
--
"Outside a dog, a book is man's best friend.
Inside a dog it is too dark to read."
Groucho Marx
for athletes http://rogercortesi.com/athleticlog/
for nerds http://rogercortesi.com/eqn/
461
Member
1302 days
rbreddin75 posted 2 years ago.
If I remember correctly (digging out physics book) it's called radial acceleration...
basically, it says that the outside of the spoke(rim) travels faster than the inside of the spoke(hub)... but it takes longer for the outside of the spoke to reach the sensor, so actually the outside of the spoke and the inside of the spoke will give the same reading where the magnet/sensor is concerned...
SAME thing with the crank, so you're ok..
Just make sure that your wheelsize is correctly calibrated for the computer..
(I have the astrale 8 also and love it)
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As Iron sharpens Iron, so one man sharpens another. proverbs 27:17
[url=http://www.northatlantamultisport.org]
yo suckas.
yesterday i got my rei dividend and i went and bought the aforementioned computer. the only problem is that they directions for setting it up suck super badly. here are my two questions.
1. where along the crank arm should i put the cadence magnet?
2. where on the spoke shall i position the other magnet?
seriously kids, the directions are horrible.