Parts/Radio & control/Telemetry sensors/MYLAPS RC4 "Hybrid" Direct Powered Personal Transponder
MYLAPS RC4 "Hybrid" Direct Powered Personal Transponder
MYLAPS

MYLAPS RC4 "Hybrid" Direct Powered Personal Transponder

Part # AIT10R0784.7(86)
Where to buy
$174.99
AMain Hobbies
Seen Oct 12, 2026
$174.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is the MYLAPS Personal RC4 Hybrid Direct Powered Transponder.

Features:
  • Half the size, half the weight of the original
  • Low voltage operation: 2.8-16 Volt compatible
  • Transponder and transponder holder are individual parts, so you can easily switch transponders between different cars (extra holders sold separately).
  • Better quality cable (PTFE) that is fuel resistant
  • 1-4 cell LiPo compatible
  • Fully hybrid:
    • 100% compatible with RC2/RC3 Timing Systems (previously AMBrc)
    • 100% compatible with RC4, and ready for the future

Specifications:
Dimensions (excluding holder) (WxLxH): 16x19x6mm
Weight: 4.7g (including holder)
Operating voltage: 2.8 - 16.0 V
Power consumption*: 19 mA
Wire isolation**: PTFE
Quick change holder: Yes
Connector: Generic receiver 3-pole

* Measured at 6.0 volt (receiver output)
** Gasoline/Nitro-methane resistant, no aging  

NOTE: See image below for a list of transponders and compatible MYLAPS decoders. 

Reviews4.7 · 86 reviews

James KennedyVerified owneron MYLAPS RC4 "Hybrid" Direct Powered Personal Transponder

Excellent performance! If for any reason you are getting irregular lap recording, check the polarity of the plug into the receiver. It will "weakly" ground to the signal pin and not always send a signal when you cross the sensor. This will be when you have it in the receiver in reverse polarity. Remember, black wire = negative (-) pin.

6 found this helpful
DakotaVerified owneron MYLAPS RC4 "Hybrid" Direct Powered Personal Transponder

so glad i bought my own transponder, so much easier and you dont have to hassle to get the rental one back in its spot. everything is great but one bad thing is the wires could be a little softer but thats not a big deal. love it i would so buy another one

4 found this helpful
Chris ElenaVerified owneron MYLAPS RC4 "Hybrid" Direct Powered Personal Transponder

Great! I have installed one in my truck and buggy and one in my son's truck. I mounted them with a piece of Parma servo tape (that stuff holds wicked strong if you heat it with a heat gun briefly before application). No more borrowing house transponders and they all have at least 30 races on them with zero failures of any kind. The wires are a little stiff, and it is really hard to get them in and out of the holders (we don't use the holding bracket and instead mounted it straight to the chassis), but most hardcore guys will get one per car if they run multiple classes anyways. A great trick to do to move them from car to car easily is to simply use a little square of Velcro, which holds strong but is not a pain like the bracket it comes with. People talking about it not having an LED are not hooking it up correctly or are talking about a different unit. The Y logo on the top flashes when it is connected to power. Small, light, effective, reliable, and tough!

3 found this helpful
Anonymouson MYLAPS RC4 "Hybrid" Direct Powered Personal Transponder

I got this Transponder for My SWORKZ 350 BE-1 EVO Buggy... It came Highly recommended by the Track Employees @ my Off-Road track & I did not want the Issues with A RENTAL Transponder & the $10.00 Monthly RENTAL Fee my Track Charges all season long OR if you don't want to pay the Fee each month You got to take the Transponder out of your car @ the End of the day Racing & that's a pain to do after a day of racing... This Transponder Powers-up every time when the On-Off switch on your car is turned on for your radio equipment... I like how the small RED LED Light on Top Of the Transponder Flashes to let you know your Transponder is working...I also like that this Transponder plugs right into a AUX / 3rd channel plug on your RX The Transponders wires are a bit on the stiff side wished the wires where more easer to work with So you have to be careful how you route the wires & not try to bend the wires too far... LAP after LAP this Transponder LOG's Each & Every LAP & Times on my buggy... I would recommend this Transponder to anyone that Off-Road Races on a daily weekend basis like me...

2 found this helpful
AnonymousVerified owneron MYLAPS RC4 "Hybrid" Direct Powered Personal Transponder

The only negative I have found (like others) is the wires are a bit on the stiff side. This thang is tiny compared to my old one lol! A transponder is a must if you are going to be serious about racing.

2 found this helpful
What reviewers say

Most of the 60 reviews are positive, with many giving 5 out of 5. Reviewers commonly praise reliable lap detection, small size, light weight, and plug-and-play setup. Several say it works across tracks and timing systems, and some note it is easier than renting a track transponder. The most frequent criticisms are stiff wires and high price, with some reviewers saying they would buy one per car or look for cheaper alternatives. One reviewer reported a dead unit out of a three-pack, and another reported a delivery delay. Reviewers disagree on the LED: one says it lacks one, while others describe a flashing red LED. A few reviews reference the two-wire version as the more reliable option.

  • + Reliable lap counting
  • + Small, lightweight, easy to mount
  • + Plug-and-play setup
  • + Works with many tracks and timing systems
  • − Wires are stiff
  • − High price
  • − One unit reported dead out of a multi-pack
  • − Mixed reports on LED indicator
Summary generated from the reviews above.

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