lap timer FAQ - Chicagoland Sportbikes
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post #1 of 17 (permalink) Old 11-17-2008, 11:36 AM Thread Starter
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lap timer FAQ

just got into trackdays this year and im looking for info about lap timers.
i see that they come in various packages: timer only, software, transponders/receivers. all this is a bit confusing for me so im lookin for some help.
the lingo is a bit weird, are transponder/receiver/beacon all the same thing? how much do either go for? if the transmitter gets mounted on the tail, about how long of a chord will i need to run to the actual timer? whats a fair price for a full package that has been used or new? so far it looks like most ppl use the xt timers.
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post #2 of 17 (permalink) Old 11-17-2008, 11:39 AM Thread Starter
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if anybody knows of such a deal please send it my way
also im a visual learner so maybe pic description would help

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post #3 of 17 (permalink) Old 11-17-2008, 11:40 AM
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I've gone through 3 XT timers and won't be buying another.

I'm now using an AIM MyChron and been much happier with the timer itself and even moreso with the customer service.

Transponder = beacon. its the thing you set up alongside off the track to trigger the timer.

REciever= the thing on your bike reading you laptimes

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post #4 of 17 (permalink) Old 11-17-2008, 11:40 AM
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I went with the 12 or 16 inch cord, so i put the reciever on whichever side the beacon is on, and run the cord around the back of the gauges, and put the timer on the other side, below the handlebars.

i just put a piece of velcro on each side so its easily changed depending on which side of the track the beacon is on.

i got the beacon, but usually someone puts one out at the track. havent had to use mine yet.

XT ultra is what i have
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post #5 of 17 (permalink) Old 11-17-2008, 12:17 PM Thread Starter
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my fairings already have something built in to hold it on the tail, altho i agree near the handlebars would be easier. thanks tho, that clears up alot of confusion. do ppls times get messed up if theres more than 1 beacon setup at the track? or if there are 2 in diff locations?
what were the problems w/the xt rob?
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post #6 of 17 (permalink) Old 11-17-2008, 01:12 PM
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I have an XT that i've been extremely happy with. I'm gonna sell mine




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post #7 of 17 (permalink) Old 11-17-2008, 01:26 PM
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Quote:
Originally Posted by equipt31 View Post
my fairings already have something built in to hold it on the tail, altho i agree near the handlebars would be easier. thanks tho, that clears up alot of confusion. do ppls times get messed up if theres more than 1 beacon setup at the track? or if there are 2 in diff locations?
what were the problems w/the xt rob?
Maybe I've just had bad luck, but none of my 3 XTs worked for very long. Sometimes crash damage, sometimes they just stopped working with no "help" from me. XT charges $34 each time to fix them, plus shipping there.

Now, my MyChron on the other hand has shown better crash survivability. The one time I did break it, I sent an email to Mychron and they said "sure send it in." I did, and I expected to get a call with an estimate, but instead I just got a UPS box 3 days later with my fixed timer in it! no charge. The timer itself is a better unit, with more useful features and readability. There's a reason that the Kart world is dominated by AIM. They rock.

Thats just my .02 having owned and used both for an extended period.

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post #8 of 17 (permalink) Old 11-17-2008, 01:28 PM
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buy Tony's XT FTW.


There are two things to discuss here....


Lap Timers

A small device you attach to your dashboard with a lap time readout,
it has a cable that runs to an IR receiver that you also velcro / mount
to your fairing.

The receiver needs to be able to mount left or right depending on which
side the transmitter / beacon is in... hence the popularity of velcro.

The transmitter / Beacon ..... most track day orgs provide one.
It transmits an IR beam ( finish line ) that resets the timer on your bike.



TRANSPONDERS

Racing organizations use TRANSPONDERS..... think of it like an IPASS.

They have a timing and scoring computer. You mount the transponder
( usually in a transponder holder ) on your tail section. The transponder
is measured by a series of wire loops buried in the racing surface.

This allows the timing and scoring computer to time and count your laps
during the course of a race weekend. The transponders are generally
rented from the racing organization.


If you are buying a NEW laptime, reccomend the AIM MyChron over the XT.



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post #9 of 17 (permalink) Old 11-17-2008, 01:31 PM
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Quote:
Originally Posted by BLARNEY View Post
buy Tony's XT FTW.


There are two things to discuss here....

150 bucks, come and get it.




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Last edited by HDTony; 11-17-2008 at 10:20 PM.
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post #10 of 17 (permalink) Old 11-17-2008, 01:32 PM
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A transponder is usually the term that refers to the bike identifier transmitter used for racing. That would mount to the tail for the dbCOM stuff used by CCS. WERA, CRA and others use the AMB system, and they mount on the fork tube.

I had a couple of the original Microns. Moved to XT, and I have had very good luck with them until I tried a GPS timer.

Beacon goes at the side of the track. I don't think I've ever used mine as someone generally always is bringing one. If there is more than one beacon, yeah, you can get splits or two readings. Depends upon the timer/receiver configuration. XT's will work off of Micron beacons, but I don't believe that the Micron's will work off the XT beacon. Maybe that has changed.

Hopefully that helps.

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post #11 of 17 (permalink) Old 11-17-2008, 01:32 PM
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Quote:
Originally Posted by Super Dave View Post
A transponder is usually the term that refers to the bike identifier transmitter used for racing. That would mount to the tail for the dbCOM stuff used by CCS. WERA, CRA and others use the AMB system, and they mount on the fork tube.

I had a couple of the original Microns. Moved to XT, and I have had very good luck with them until I tried a GPS timer.

Beacon goes at the side of the track. I don't think I've ever used mine as someone generally always is bringing one. If there is more than one beacon, yeah, you can get splits or two readings. Depends upon the timer/receiver configuration. XT's will work off of Micron beacons, but I don't believe that the Micron's will work off the XT beacon. Maybe that has changed.

Hopefully that helps.
MyChrons work off XT beacons now.

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post #12 of 17 (permalink) Old 11-17-2008, 02:20 PM Thread Starter
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thx everyone, this is pretty informative stuff.
tony i sent ya a pm
also, is it pretty easy to upload that info onto a pc on excel for example? does it just require simple usb or something?
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post #13 of 17 (permalink) Old 11-17-2008, 05:45 PM
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Both the XT and the Mychron have a proprietary download cable. I have both. (Windows only for moth) I've never got the XT one to work right. That said, if you buy Tony's, I'll sell ya the DL cable cheap to go with it. Its just taking up space for me.
The Mychron DL cable comes with a pretty nifty software package for analyzing and graphing laptimes.

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post #14 of 17 (permalink) Old 11-17-2008, 09:59 PM
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i usually set my minimum lap time like 30 seconds or something, so that way if there is two beacons, that are within 30 seconds on the track of each other, it'll disregard the second one. had that problem at acc full last time there. it was starting the lap at the jump, and not at the s/f on the south course side.
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post #15 of 17 (permalink) Old 11-17-2008, 10:17 PM
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I heard thereis a new lap timer out there that works like a gps. Gives you realtime recording of your entire lap and helps you find out where to improve. Maps your lap out, blah blah blah.

Even for lots more money than a regular timer this sounds like a better deal to me to try and get faster.

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post #16 of 17 (permalink) Old 11-17-2008, 10:24 PM
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Unless you are racing, just pick up a xt lap timer. I recommend Tonys. I know he only used it a few times so its probably in minty condition and cheaper than buying new. Used times sell fast so if you want it, jump on it.

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post #17 of 17 (permalink) Old 11-18-2008, 10:33 AM
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Tony, what's the matter? Selling yours because it didn't record in days to accurately record your lap times?
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