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
Logitech G27 Repair - iFixit
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How To: Replace Logitech G25 Optical Encoder Disc (How To Fix Your Broken Logitech G25) - YouTube
60 Slot Steering Wheel Optical Encoder for Logitech G25 Old G27 Driving Force GT | eBay
60 Slot Steering Wheel Optical Encoder For Logitech G25 old G27(60 Slot) Driving Force GT (DFGT) Racing Car Game _ - AliExpress Mobile