RoadbikesBMC vs Volagi Take Our Poll Share this: Share on Facebook (Opens in new window) Facebook Share on Pinterest (Opens in new window) Pinterest Share on Reddit (Opens in new window) Reddit Email a link to a friend (Opens in new window) Email More Share on Tumblr (Opens in new window) Tumblr Share on X (Opens in new window) X Like Loading... Related
I believe the discs are hydro but the levers are mechanical. The red do-hickey would be the reservoir and piston. The new SRAM and Shimano systems have the reservoir built into the shifters
BikeWar 
What’s the red do-hickey sticking off of the stem?
Yeah we’re not sure either. Maybe someone can pipe in.
I believe the discs are hydro but the levers are mechanical. The red do-hickey would be the reservoir and piston. The new SRAM and Shimano systems have the reservoir built into the shifters
Thanks for the insight!