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  • Thanks for the reply! I have about a thousand tabs open right now. Should also do some actual work, but oh well.

    It'll be a second bike so no hurry. Doing some renovation at the moment plus a baby incoming so bike building will be slow. I have no spare parts lying around so might as well buy the entire groupset. Or a frame and swap everything. Argh, should read up more.

  • Does also depend on the build. Both my Di2 bikes were built up using individually sourced parts, which is a pain but I just didn't need all the parts in a groupset for either bike. There should be a list of parts you need in this thread. Basically with Di2 it's shifters, Junc A, Junc B, FD, RD, battery, cables. Mechanical is that minus junction boxes. Then you get into specifics like are you doing 1x? Are you using cable or hydro brakes? Which wheels are you using - what thru axle size and disc rotor type do you need?

  • It'll be a winter/commuter/touring bike so doesn't have to be fancy. It'll be mostly road so I think i'll stick to 2x. Would like hydro brakes. Don't know enough about wheels yet. Really tempted to just get the tiagra 4700 hydro groupset and upgrade later if possible.

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