Pick the part you already have. Results show clean matches only, and the exact model code should still be checked against the manufacturer's table before buying.
Only clean matches are shown
The common upgrade mistake is looking only at speed count. In practice, chain profile, freehub standard, shifter pull ratio and frame requirements decide whether a drivetrain works.
Classic Eagle and Eagle Transmission are not one interchangeable system. Transmission uses a T-Type cassette, T-Type chain and a derailleur mounted directly to a UDH frame. AXS controllers are the exception: they can operate different AXS derailleurs.
LINKGLIDE is built for durability, especially on e-bikes and utility bikes. CN-LG500 works with 10/11-speed LINKGLIDE and Shimano 11-speed HYPERGLIDE, but that rule does not extend to 12-speed HG+.
GRX 2x12 uses HG 11-34/36 cassettes and RD-RX820. GRX 1x12 uses RD-RX822: GS is for 10-45T and SGS is for 10-51T Shimano MTB cassettes on Micro Spline.
A 10T small sprocket usually means standard Shimano HG is not enough. Shimano 12-speed MTB uses Micro Spline, SRAM Eagle uses XD, and SRAM road/XPLR AXS uses XDR.
Not as a complete mechanical drivetrain. Transmission cassette and chain are T-Type and require T-Type components plus a UDH frame for the derailleur. AXS controllers are the exception: they can operate different AXS derailleurs.
No. Shimano lists CN-LG500 as compatible with 10/11-speed LINKGLIDE and 11-speed HYPERGLIDE. Do not extend that rule to 12-speed HG+.
Yes. Shimano 105 R7100 has the mechanical RD-R7100 rear derailleur and ST-R7120 2x12 dual-control levers. It is separate from 105 Di2 RD-R7150/ST-R7170.
No. Micro Spline and XD use different driver shapes. If your hub supports replaceable drivers, buy the matching body for that exact hub.