Shimano GRX RX820 (mechanical 2x12): Kompatibilität von Kassette, Kette, Freilauf und Schaltwerk

Was der Hersteller für diese Gruppe freigibt, wörtlich aus der offiziellen Kompatibilitätstabelle. Nichts davon ist geschätzt.

Kassetten · laut Shimano

CS-R8101-12, CS-R7101-12, CS-HG710-12

12-fach · mechanisch · Freilauf: HG spline L2 (ROAD 12-speed dedicated, WH-R9200/WH-R9370/WH-R9270/WH-RX880) or HG spline L (ROAD 12/11-speed)

Quelle: C-254 · C-454 · C-455 · C-731 (2026-09-21)

Kassetten

Modelle	CS-R8101-12, CS-R7101-12, CS-HG710-12
Abstufungen	11-34T, 11-36T
Freilaufkörper	HG spline L2 (ROAD 12-speed dedicated, WH-R9200/WH-R9370/WH-R9270/WH-RX880) or HG spline L (ROAD 12/11-speed)

CN-M9100, CN-M8100, CN-M7100, CN-M6100

Schaltwerk	Größtes Ritzel max.	Größtes Ritzel min.	Kapazität	UDH
`RD-RX820`	36T	34T	42T	ja

FC-R9200, FC-R9200-P, FC-R8100, FC-R8100-P, FC-R7100, FC-RS520, FC-RX820-2, FC-RX610-2

C-454 lists SHIMANO 105 R7100, GRX RX820 and GRX RX610 in ONE mechanical 2x12-speed row (ST-R7120 ST-RX820 ST-RX610 | RD-R7100 RD-RX820); GRX RX610 has no own rear derailleur — RD-RX820 is the RD listed for it.
C-454: the mechanical row lists only CS-R8101-12 / CS-R7101-12 / CS-HG710-12 (NOT CS-R9200-12 / CS-R8100-12 / CS-R7100-12, which appear only in the Di2 row).
C-454: the 12-speed chain for all road/gravel 12-speed groups is the MTB chain CN-M9100 / CN-M8100 / CN-M7100 / CN-M6100 (no road-specific 12-speed chain).
C-731: ROAD 12-speed cassettes fit HG spline L2 (dedicated) and HG spline L (ROAD 12/11-speed) FREEHUBs; they do NOT fit HG spline M or MICRO SPLINE.

ST-RX820, RD-RX820, FD-RX820, CS-R8101-12, CS-R7101-12, CS-HG710-12, FC-RX820-2