Ultra Aero Chain Guide - TT - Hill Climbs - single chainring setups For converting to 1x chainring on the front. This aero chain guide provides a much smaller frontal area and a more streamlined alternative to a standard front derailleur. Ultra lightweight at just 17g. Included: - Aero Chain Guide - M5 Cap Head Bolt - M5 Nut - Aero Bolt Head Shroud This listing is for the ultra aero, shorter side wings version.
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