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Thread: Tiagra Cassette

  1. #1
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    Tiagra Cassette

    I am looking to get new wheels and keep my old ones for the trainer.

    I have a sysnapse 2012 with tiagra 12-28 cassette.

    Since I will be changing the wheel at times I figure I might as well buy a new cassette for the new wheels to make things easier.

    There are so many cassettes- Should I just stick with the same one 12-28 or perhaps go to the 12-30? Hills are my nemesis and I figured the larger sprocket may help for that. but the other teeth are affected too. Either one should work with my tiagra 4600 setup - right?

    On the other hand I would like a smaller ring to get a little more on the fast end - so what about 105 or ultega 11-28? Will they work without issue with my tiagra 4600 setup?

    Thanks in advance

  2. #2
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    Best to check your rear mech can handle a 30T rear as I believe 'officially' 28T is the largest with a Tiagra rear mech. Google reveals it should work but maybe see if you can borrow a wheel with 30T on it.....
    If hills really are your nemisis then you would gain more advantage from a cassette with 30T than one with 11T - how often are you wanting to go flat out downhill (or on the flat) and find the 12T is holding you back?
    What's your inner chainring? If 42T then swap it for a 39T and that will help with hills too.

  3. #3
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    I have 10 SP Tiagra (4600 I assume) RD and FD. My 2012 Felt Z6 came with a 12-30 and then I got new wheels and put an Ultegra 11-28 on the rear. I had LBS do it (got wheels through them) but they said they just had to adjust a little bit on the tension and not the limit too much. I switch back to the 12-30 for the trainer and it's fine in the middle of the cassette.

    You should just be careful if you get into the 50 upfront and 30 in the rear...shouldn't really do that anyway. Chain was left alone. YMMV

    Good luck!

  4. #4
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    What about an ultegra 12-30 cassette with tiagra 4600 - has anyone tried that?

    Any issues?

    thanks

  5. #5
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    2010 Specialized Secteur Elite upgraded with 32T cassette and does not have Stan's (yet)
    2009 Specialized Rockhopper Comp 29er upgraded with 36T cassette and Stan's Arch EX rims and tubeless. Considering a 1x10 upgrade
    2013 Cannondale CAADX-6 Tiagra upgraded to 32T cassette and Stan's Alpha 400 rims and tubeless
    2008/2009 Burton T6 156cm with Burton Triad Bindings & DC Judge boots

  6. #6
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    Quote Originally Posted by tednugent View Post
    30T is the largest cog
    Which means you can go 1-2T past that if you want to and put a 12-32T cassette on there.

  7. #7
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    Quote Originally Posted by Dunbar View Post
    Which means you can go 1-2T past that if you want to and put a 12-32T cassette on there.
    you can, but it is not guaranteed 100% it would work on all bikes, depending on derailleur hanger geometry.

    It's always worth a try, then you can drop $100 on a 9-speed Shimano MTB rear derailleur
    2010 Specialized Secteur Elite upgraded with 32T cassette and does not have Stan's (yet)
    2009 Specialized Rockhopper Comp 29er upgraded with 36T cassette and Stan's Arch EX rims and tubeless. Considering a 1x10 upgrade
    2013 Cannondale CAADX-6 Tiagra upgraded to 32T cassette and Stan's Alpha 400 rims and tubeless
    2008/2009 Burton T6 156cm with Burton Triad Bindings & DC Judge boots

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