Selecting the Ideal Freehub Body for Your Cassette: Ultimate Guide
parts - Shimano MTB and Road Components Compatibility - Bicycles Stack Exchange
Any bike mechanics, help needed....Ultegra 6870 and R8000 compatibility - Equipment - TrainerRoad
Shimano/Campagnolo/SRAM compatibility chart - and a quick question about using 10 speed Campy brifters with an 8 speed XTR rear mech : r/bikewrench
Nas Cycling - Hi, Here's the list of all compatible shifters & RD combo for dropbar wide range (40t to 52t) gearing setup. This is base on the compatibility chart and known
Shifter derailleur incompatibility on 9 speed Shimano - Page 2 - Bike Forums
parts - Shimano MTB and Road Components Compatibility - Bicycles Stack Exchange