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Groupsets Conundrum

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  • October 13, 2016 at 8:56 am #26383
    ClubSmed

    I am going to be building up a bike for my other half using a spare frame and I was wanting to get peoples thoughts on groupsets.

    My current options are as follows:

    New Shimano 105 (5800) 2×11 speed – This is exactly the same as on my bike so would mean I only have to consider spare parts for one type of groupset. I would use an 11-32 cassette here.

    Old Shimano Utegra triple (6500) 3×9 speed – This may enable her to more easily do the larger inclines when we do tours but spares are becoming rarer. I would use a 12-25 cassette here

    Thoughts?

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  • October 13, 2016 at 1:09 pm #879987
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    ClubSmed

    CXR94Di2 wrote:

    CXR94Di2 wrote:
    Is this bike your building having drops or flat handlebars? Flat bars will allow mtb shifters/ rear derailleur with the ability to fit up to 42t rear cass. I fitted a Shimano slx groupset to my wife’s shopper(don’t ask). 38/22 crank 11-36t cass. It goes anywhere and she no longer has to get off and push. Though it would be quicker on some steep hills:)

    It will have drops so I think such a large rear cassette is out of the question unfortunately

     

    Jack Osbourne snr wrote:
    I run a Campag triple on a couple of bikes and at 30-29 can ride up anything. I do agree though that there is some duplication and a couple of less than sweet spots in a triple set up. Not enough to bother me even over a few thousand miles a year between the two bikes. If you got both of those groupsets lying around I’d fit the compact 11 speed with little reservation. However, if you’re still to buy that but have the triple “in stock” I’d just fit that instead. Unless it’s for racing, I wouldn’t write off a 9 speed triple as its still able to cover almost any Terrain and parts will still be available for a good while yet. (Get a cassette with a wider range though).

    I do not have either of these as of yet. The triple I would be buying second hand and the 105 I would be getting new, as I would be using the Cycle to Work scheme to purchase the 105 there is not too much difference in real cost.

     

    October 13, 2016 at 1:06 pm #879985
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    Rod Marton

    I used to be a fan of triples

    I used to be a fan of triples, but nowadays with compact chainsets and large numbers of sprockets on the cassette it isn’t so clear cut. The remaining advantages of triples are that the jump in gearing on the front changer isn’t so large and the smaller number of sprockets means that the chain is more robust (that one’s a bit marginal unless you are planning on expedition touring in the middle of nowhere). The advantage of a compact double is that it is easier to keep so a sensible chain line. I would definitely use a triple for expedition touring or tandem, definitely a double for racing, but for general use either will do.

    October 13, 2016 at 12:22 pm #879983
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    Jack Osbourne snr

    I run a Campag triple on a
    I run a Campag triple on a couple of bikes and at 30-29 can ride up anything. I do agree though that there is some duplication and a couple of less than sweet spots in a triple set up. Not enough to bother me even over a few thousand miles a year between the two bikes.

    If you got both of those groupsets lying around I’d fit the compact 11 speed with little reservation.
    However, if you’re still to buy that but have the triple “in stock” I’d just fit that instead. Unless it’s for racing, I wouldn’t write off a 9 speed triple as its still able to cover almost any Terrain and parts will still be available for a good while yet. (Get a cassette with a wider range though).

    October 13, 2016 at 11:46 am #879981
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    CXR94Di2

    Is this bike your building
    Is this bike your building having drops or flat handlebars?

    Flat bars will allow mtb shifters/ rear derailleur with the ability to fit up to 42t rear cass. I fitted a Shimano slx groupset to my wife’s shopper(don’t ask). 38/22 crank 11-36t cass. It goes anywhere and she no longer has to get off and push. Though it would be quicker on some steep hills:)

    October 13, 2016 at 10:49 am #879979
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    Dnnnnnn

    I’d go 2X11 too. Plenty scope

    I’d go 2X11 too. Plenty scope for low gears without big gaps there.

    You don’t say how gear-savvy your other half is but lots of people really don’t understand how to use their gears properly, and triples just exaccerbate that.

    October 13, 2016 at 10:08 am #879977
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    ClubSmed

    Jack Osbourne snr wrote:

    Jack Osbourne snr wrote:
    A 25t sprocket with a triple is a waste of time. I’d put as big as you can on the back. Is Shimano 9 speed not good for up to 30t at the back? What spares are you finding hard to acquire? I get Ultegra 9 speed might be getting rarer, but plenty of Shimano or Shimano compatible parts still in manufacture.

    25t cog is just what would come with it. To be honest I have not looked for Ultegra 9 speed parts, it was just an assumption which looks like it was wrong. Thanks for putting me straight.

    October 13, 2016 at 9:54 am #879975
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    Jack Osbourne snr

    A 25t sprocket with a triple
    A 25t sprocket with a triple is a waste of time. I’d put as big as you can on the back.

    Is Shimano 9 speed not good for up to 30t at the back?

    What spares are you finding hard to acquire? I get Ultegra 9 speed might be getting rarer, but plenty of Shimano or Shimano compatible parts still in manufacture.

    October 13, 2016 at 9:52 am #879973
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    ClubSmed
    I am a human wrote:
    I had a 3×8 on one of my bikes, and 11s 105 with 11-32 on the other one.  Given the choice I’d go for 105 every time.  I prefer 2×11 a lot more just because there’s a lot less front shifting and faffing around to find the right combination of cadence and chain angle.

    I’ve now binned off the 3×8 and put 2×10 Tiagra on that bike, and don’t regret it one bit!  Also 34/32 is a spinnier gear than the 30/25 that was the smallest gear on the triple, so it’s even better for steep stuff.

     

    Thank you, that is just what I needed to hear

    October 13, 2016 at 9:39 am #879971
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    I am a human

    I had a 3×8 on one of my

    I had a 3×8 on one of my bikes, and 11s 105 with 11-32 on the other one.  Given the choice I’d go for 105 every time.  I prefer 2×11 a lot more just because there’s a lot less front shifting and faffing around to find the right combination of cadence and chain angle.

    I’ve now binned off the 3×8 and put 2×10 Tiagra on that bike, and don’t regret it one bit!  Also 34/32 is a spinnier gear than the 30/25 that was the smallest gear on the triple, so it’s even better for steep stuff.

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