I noticed this the other day while cleaning my bike, two threaded mounts on the underside of the left chainstay which I assume are for mounting a Di2 battery. But is there perhaps an aftermarket speed/cadence sensor that could also be mounted in here? It would give it a cleaner look than the zip tie Bontrager one that I have above it.
Merckx EMX-525 left chainstay underside mounts
Moderator: robbosmans
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