ISDT RR Transponder Mounting Info

[slvrbrdfxr]

Hi all,
Below is info about how and where the transponders will need to be mounted to read correctly.
Dave McCullough
TTR

The transponders are hard plastic cylinders about the size of a fat cigar (3/4" diameter, about 5" long).  They need to be mounted at least 3" away from metal, and horizontal (think like your handlebars).  The best place to mount them is on the front of your chest protector or attached to your camelback strap that goes across your chest.  If a guy wears an under the jersey chest protector, it can be mounted on that and will read thru the jersey just fine.  I highly recommend using zip ties to mount them, although duct tape could work too as long as it was a REALLY good tape job.  If the rider doesn't wear a chest protector, then the transponder could be mounted on a plastic number plate or plastic front fender, again making sure the transponder is mounted horizontally and away from metal.  I suppose duct tape could work in this scenario, but again, I don't trust it and highly recommend multiple zip ties.  Another alternative is in your camelback in the bottom of the pouch that holds the bladder, but again, it must be shoved all the way down to the bottom so that it will stay horizontal.  This is not an option if the rider is wearing a fanny pack full of tools or if the camelback has tools in it.  Even though we say keep them away from metal, I've had guys mount them with bailing wire.  Using this mounting method is a 100% guarantee that the transponder will not read at all.

To recap:  Transponder MUST be mounted horizontally and parallel to your handlebars.  Transponder MUST be kept at least 3" away from any major metal parts.  Transponders SHOULD be mounted with zip ties.  Duct tape can be used but is not recommended as the primary holding mechanism.

Anyone who swaps out a transponder with a buddy will be found out very easily.  When they pass the antenna at a checkpoint their bike number shows up on the display.  If the bike number on the display doesn't match the bike number on the bike, you have a cheater on your hands.