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Is it possible to run a sub compact chainset with 12 speed 105 Di2? Will the front mech work with a 12 speed GRX chainset ? Any other options?
Posted : 04/01/2024 12:04 am
Have a look at absolute black subcompact chain rings. Have been running 46-30 on 11spd ultrgra crankset without any problems, just fine tuning FD position according to their instructions
Posted : 04/01/2024 12:13 am
Ibe been doing rhe same absolute black thing as above. Thats in ultegra 12sp too. A pr of rings is about £180!!
A grx chainset needs a grx front mech as the chainline is set +2.5 mm outboard.
Posted : 04/01/2024 7:55 am
Topic starter
Thanks . I’m also considering SRAM rival axs as changing chainset seams easier cheaper. May be wrong mind
Posted : 04/01/2024 9:42 am