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Shimano/Campagnolo/SRAM compatibility chart - and a quick question about using 10 speed Campy brifters with an 8 speed XTR rear mech : r/bikewrench
![shimano - Using 9 speed bar end shifters in friction mode with 10 speed derailleurs and cassette - Bicycles Stack Exchange shimano - Using 9 speed bar end shifters in friction mode with 10 speed derailleurs and cassette - Bicycles Stack Exchange](https://i.stack.imgur.com/pVlT9.png)
shimano - Using 9 speed bar end shifters in friction mode with 10 speed derailleurs and cassette - Bicycles Stack Exchange
![shimano - Using 9 speed bar end shifters in friction mode with 10 speed derailleurs and cassette - Bicycles Stack Exchange shimano - Using 9 speed bar end shifters in friction mode with 10 speed derailleurs and cassette - Bicycles Stack Exchange](https://i.stack.imgur.com/m4FZ4.png)