Copy of your coded black key for Yamaha T-MAX 125 250

black key insert with slot for adaptable transponder (chip)

compatible with Yamaha

Yamaha red key insert with transponder (chip) slot

Black key with Yamaha-compatible transponder

Yamaha blue coded key with transponder

Yamaha coded red key with transponder

Yamaha compatible black key insert

with transponder slot

Yamaha coded black key with transponder (original chip)

TMAX

XMAX