Amazon.com: Wheel Stand Pro SuperG with RGS shifter mount Compatible With Logitech G29 G923 G920 G27 G25 Wheels, Deluxe, Wheel and Pedals Not included. : Electronics
Optical Encoder 60 Slot Wheel precise 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|Board Games| - AliExpress
60 Slot Steering Wheel Optical Encoder For Logitech G25 old G27(60 Slot) Driving Force GT (DFGT) Racing Car Game|Board Games| - AliExpress
60 Slot Steering Wheel Optical Encoder For Logitech G25 old G27(60 Slot) Driving Force GT (DFGT) Racing Car Game|Board Games| - AliExpress
60 Slot Steering Wheel Optical Encoder for Logitech G25 Old G27 Driving Force GT | eBay
Adventures in newer (optical) pc steering wheel hacking