Trackmate Compatible IR Transponder for RC Cars - works with Trackmate

Mylaps RC4 Transponder

Orange Lap 23 Trackmate Compatible IR Transponder for RC Cars

~NEWEST VERSION~ MRT Pro Transponder, works with mylaps RC3.0 RC4.0 through V4.4

Novak GTB Brushless ESC w/ Velocity 3.5 Motor Team Associated Losi HPI Tamiya

ECP-8050 Micro 24 Brushless Upgrade Combo (Sensored ESC & Motor) For Losi™...

MRT mPTX 2 Wire Direct Powered Personal Transponder - MYLAPS RC4 RC3 3

MRT mPTX 2 Wire Direct Powered Personal Transponder - MYLAPS RC4 RC3 2