I have no idea about the grommet, just saw it mentioned in the owners manual that I downloaded.


What's the best battery options for the TM02, external with a short mount? The internal batteries look much longer, would they fit in the slot for the battery, if so what mount should be used?

What are the differences in the FD cover for mechanical and Di2? Is it critical, e.g. could I get Di2 installed with the mechanical cover, or maybe leave the cover off and then attach the Di2 cover at a later date? The reason I ask is that I have a race soon and won't have time to order the cover beforehand.

I'm UK based, happy to split the cost for the seatpost clamp plugs. Email me <removed>