Compatibility guideShimano 105 R7100 Rear Derailleur — what fits6 pairings checked against builds.bike's compatibility engine, sorted by fit.Shimano 105 CS-R7100 Cassette 11-34CassetteCompatibleSRAM Eagle XG-1275 Cassette 10-52CassetteCompatibleSRAM NX Eagle PG-1230 CassetteCassetteCompatibleKMC X10 Silver/BlackChainNot compatiblemicroSHIFT Advent X 10-Speed ShifterShifterNot compatiblemicroSHIFT Advent X G-Series 10-Speed CassetteCassetteNot compatible Check your own build Start a build