wiki:KyoshoICLapCounter

Kyosho IC Tag Lap Counter

The Kyosho IC Tag Lap Counter is based on the  Melexis 90121 RFID transceiver chip interfaced with an  Atmel microcontroller. Communication with the microcontroller is achieved using a  FTDI serial to usb convertor. This RFID reader supports the ISO15693 standard.

In order to communicate with this RFID reader you must set your serial device to 38400 baud, 8 data bits, 1 stop bit, no parity. This reader is using the ISO15693 standard like the TI reader.

Small 13.56MHz ISO15693 tags should work.

You can find additional information on the communication protocol here.