Disciples of SRAM’s wireless Red eTap groupset can now go bigger on the rear cassette, thanks to the adoption of the company’s “WiFLI” technology.
Previously, Red eTap could only accommodate up to an 11-28 cassette, however, the addition of a longer cage rear derailleur bumps choices up to as much as 32 teeth.
The claimed weight for the eTap WiFLi rear derailleur is 243g with battery, which is just four grams heavier than the short-cage eTap RD. Factor in the extra weight of the Red 11-32 cassette (196g claimed, about 30g heavier than the 11-28), and a few extra chain links and you’re looking at about a 50 gram increase for eTap WiFLi versus the short-cage rear derailleur with 11-28 cassette.
The only downside to the upgrade might be however, that one can’t go any smaller than 11-26.
SRAM is offering the new “WiFLi” derailleur for $620, or as a complete kit, which includes the upgraded battery, 11-32 cassette and the new Red 22 chain for $920.
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