• Does anyone do a 12 or even 13 or 14-40T cassette?

    Trying to get some easier gears on a Tiagra 4700 groupset with a GS rear mech. 50-34 front so a 11-40 (with road link) would put it at 45T when the capacity is 41T.

    Will it work ok past capacity or if not, is there a cassette out there that starts at 12 or higher? Top end speed is not an issue and it's not my bike so I really don't want to have a situation where is a risk in certain gears.

  • Be easier to use a praxis Alba 48/32 chainset.

    Gears will shift cleaner, not huge jumps on the gears etc

    I use 48/32 with an 11/32 and find it good, will go 11/34 when this cassette wears out - didn’t originally because 105 spec 11-34t wasn’t out, just ultegra so more than I wanted to spend

    • edit, you can get the 4700gs to work with 36t happily in my experience.
  • You could just swap your 50t for a 46t.

  • if the crankset is 4700 as well, you could look into getting some oval chain rings instead - someone (I think Doval maybe?) does a 46-30 for compact 4-bolt. If that's not an option for you, then 46-34 with an 11-40 would be my suggestion as well.

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