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Question about installing cateye.

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Question about installing cateye.

Old 01-07-07, 06:35 PM
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NameGoesHere
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Question about installing cateye.


Something doesn't seem right, exactly. Anyone know what I'm doing wrong???








Seriously though. The fork on this bike is so wedge shaped that I'm afraid that a) the sensor will slip down and b) will rotate easily and become very loose.

Anyone have good solutions for this situation?
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Old 01-07-07, 06:41 PM
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DXchulo
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Duct tape.

Ok, not really, but put some kind of adhesive on the back of the sensor. Maybe someone else can suggest one that is easy to clean off.
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Old 01-07-07, 06:42 PM
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Trevor98
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Rubbing alcohol to clean it
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Old 01-07-07, 06:43 PM
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It looks like your bike has a laser attached.

It also looks like you need to adjust your brake pads a little bit.
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Old 01-07-07, 06:43 PM
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Install sensor on the front of the fork blade. It has a natural shape for the sensor mount. You'll hardly notice it there. My wireless sensor is mounted on the left front fork blade of my aero fork.

Last edited by roadfix; 01-07-07 at 06:53 PM.
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Old 01-07-07, 06:48 PM
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I put a piece of clear tape on the fork, and then filled the space between the sensor and the fork with auto body putty. After it set, I peeled off the tape, sanded the putty smooth, spray painted it black to match the sensor, and mounted it with two tie wraps. Stopped the constant shifting of the sensor that was installed by the lbs at the time I bought the bike.
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Old 01-07-07, 08:34 PM
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i have mine attached with black electrical tape (black fork). no problems yet.
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Old 01-07-07, 08:49 PM
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Originally Posted by NameGoesHere
...Seriously though. The fork on this bike is so wedge shaped that I'm afraid that a) the sensor will slip down and b) will rotate easily and become very loose.

Anyone have good solutions for this situation?
Click my sig pic. Like zhefei, I also attached mine with electrical tape.
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Old 01-07-07, 08:54 PM
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Originally Posted by Mike_Like_Bike
Click my sig pic. Like zhefei, I also attached mine with electrical tape.
Being a visual learner, that helps a lot! Might not be able to tell from the pics, but mine is a Scott Speedster S1.

Thanks a bunch for everyone's help!
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Old 01-11-07, 09:23 PM
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I liked the electrical tape idea. I'm not sure I did the installation perfect, and I know ideally the sensor would go toward the back of the fork, but being a blade, I didn't see that as possible.

While on the topic of cyclocomputers... I don't see how the readings can be accurate unless the sensor/magnet are a specific distance from the hub. The tire size is set on the computer, sure, but I just don't get it. I think I'm overthinking it.
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Old 01-11-07, 09:24 PM
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Originally Posted by DXchulo
It also looks like you need to adjust your brake pads a little bit.
Please continue...
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Old 01-11-07, 10:12 PM
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Originally Posted by NameGoesHere

I liked the electrical tape idea. I'm not sure I did the installation perfect, and I know ideally the sensor would go toward the back of the fork, but being a blade, I didn't see that as possible.

While on the topic of cyclocomputers... I don't see how the readings can be accurate unless the sensor/magnet are a specific distance from the hub. The tire size is set on the computer, sure, but I just don't get it. I think I'm overthinking it.
Looks okay to me!
I was wondering the same thing myself about measuring distance accurately. I rode in the Hope century this summer and finished the ride with only 92 miles. :/
I've used the same computer all summer, so I'm wondering how many miles I really rode this year and how long some of my favorite routes really are.

The post about your brake...it looks like the pad needs to be moved up a bit so that it's making full contact with the rim surface when engaged. It could just be the angle the photo was taken at though...

I like your bike!
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Old 01-11-07, 10:12 PM
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Originally Posted by NameGoesHere


I liked the electrical tape idea. I'm not sure I did the installation perfect, and I know ideally the sensor would go toward the back of the fork, but being a blade, I didn't see that as possible.

While on the topic of cyclocomputers... I don't see how the readings can be accurate unless the sensor/magnet are a specific distance from the hub. The tire size is set on the computer, sure, but I just don't get it. I think I'm overthinking it.
It measures how many revolutions your tire makes. Each revolution is 1 "tick" that the sensor reads. You tell them how big your wheel/tires are, and it knows how much distance (circumference) it travels per revolution. So it really doesn't matter where the magnet is.
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Old 01-11-07, 10:20 PM
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Go to any local hobby store that sells R/C cars, planes, boats etc... Tell them you want some double sided servo tape. A small role of it cost about $3-$4. You can use an Exacto knife or scissors to cut it to the shape of the sensor mount. Then use two zip ties to secure it to the fork. This type of double sided tape is very high grade, won't harm your paint on the fork and will hold the sensor to the fork by itself without the tie wraps. The tie wraps should certainly still be used, but your sensor will never move an inch with this tape and the tie wraps using this method.

Good luck.
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Old 01-11-07, 10:38 PM
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Also, you always always want to mount the sensor on the front side of the fork. As a wheel turns the top side of the wheel is moving forward, if the sensor was on the backside and made contact with the wheel then there is a chance that the sensor will get pulled into the spokes. Possibly causing the wheel to suddenly stop and we all know where that usually leads.
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Old 01-11-07, 10:59 PM
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This reminds me of a grat Calvin and Hobbes strip where his dad explains that the two points on a record have the same angular velocity, but cover different distances....anyone able to dig that one up somewhere...?

EDIT: Found it...
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Old 01-11-07, 11:26 PM
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if you want actual speed you just take the wheel circumference times the angular velocity (rpm). The wheel circumference is programed into the computer, and the sensor measures rpm. The rpm reading would be the same at any distance from the hub. the velocity would be different, higher further from the hub, but that is not what you are measuring. You want the velocity of the very outside of the wheel, which you can get if you know the circumference and the rpm.
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Old 01-12-07, 07:24 AM
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Thanks for all your help!
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Old 01-12-07, 08:29 AM
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I once used a small dab of clear silicon on the forks where I wanted to mount the sensor. After about 7 years when I removed it there was no mark on the forks. Worked a dream.
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Old 01-13-07, 01:25 AM
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I got a rubber stick on strip from the LBS, cut it down to go around the fork. stuck the sensor over it and wire tied it down. Never slips, and safe for the carbon fork.
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