Di2 inline seatpost 25.4mm for Synapse
Anyone recommend one? Pref carbon, current one appears to be Di2 friendly with ridge for o-ring, but I do need inline. How do these things work? Can any seatpost work with Di2 seatpost battery? ISTR Thomson (my usual weapon of choice) no good due to oval internal profile? Do you need the ridges for the o-ring? Would prefer not to have some sort of bodge where the battery is held there by being wedged tight TBH but could be convinced. Any thoughts/suggestions? Ta.