With the release of its new and multifaceted R9100 road group, Shimano has upped the ante significantly, pitting its top-tier Dura-Ace against the likes of SRAM’s also-diverse Red group. Here we compare the two groups, in all their mechanical, electronic, hydraulic and power-measuring configurations.
While Shimano’s leap forward with electronic programming and power measurement is the big story, the Japanese company’s refinement of its mechanical componentry is noteworthy, too.
SRAM has not completely overhauled its Red22 mechanical group since its launch in 2013, but there have been some tweaks like new graphics and a front-derailleur shim for improved shifting.
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Mechanical comparison: Shimano R9100 vs SRAM Red22
Both Shimano R9100 and SRAM Red22 are 11-speed, each with multiple options in crank length, gear combinations and cassette configurations.
In addition to cosmetic changes, Shimano reworked both mechanical Dura-Ace derailleurs for improved functionality. The 69g FD-R9100-F front derailleur now matches SRAM Red22 in weight.
Shimano’s new rear derailleur, RD-R9100, is 158g (compared to Red22’s 145g), but the big news is its direct-mount compatibility and Shadow profile. Shadow is a technology Shimano has brought over from its mountain bike groups that tucks the rear derailleur closer to the cassette.
Electronic comparison: Shimano R9150 vs SRAM Red eTap
Hydraulic/electronic comparison: Shimano R9170 vs SRAM Red eTap HydroHC
Power meter comparison: Shimano FC-R9100-P vs Quarq
Cost and weight comparison: TBD…
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