coopertom on Twitter: "I found the culprit! A cracked optical encoder disc. This is why my Logitech g27 steering wheel is losing calibration http://t.co/Kvpyejyf3e" / Twitter
60 Slot Steering Wheel Optical Encoder For Logitech G25 old G27(60 Slot) Driving Force GT (DFGT) Racing Car Game|Board Games| - AliExpress
Brass type Optical encoder disc... - Fanatec Malaysia | Facebook