Should I get 9 or 10 speed chain - match cassette or crank?

iceinbangkok Posts: 26
edited June 2016 in Workshop
I upgraded my crank recently to the 105 5700 (10 spd) but I am sticking with the rest of my 9 spd Tiagra 4500 set up for now. I am replacing the rear cassette though (got an ultegra 9 speed 12-27). And I want to replace the chain as well, as it is 5-6 years old and rusting. Should I get a 9 speed chain to match the cassette or a 10 speed to match the crank? Current shifting with 9 speed change is just okay - bit of rubbing in lower gears on smaller rings. Would like to improve it a bit if I can and want to choose the right chain. Thx in advance


  • dgunthor
    dgunthor Posts: 644
    9 speed chain to match the cassette - 9/10/11 speed chainrings will work with anything - chain is designed to work with the specific cassette
  • ugo.santalucia
    ugo.santalucia Posts: 28,301
    I use 10 speed chain on 9 speed cassette and it works flawlessly... 9 speed on 10 speed chainring also works flawlessly, so just pick up the cheaper
    left the forum March 2023
  • Matthewfalle
    Matthewfalle Posts: 17,380
    Match chain to casette. 9 speed chains will work with 10 speed cassettes and vice versa - it's not exactly a black art.
    Postby team47b » Sun Jun 28, 2015 11:53 am

    De Sisti wrote:
    This is one of the silliest threads I've come across. :lol:

    Recognition at last Matthew, well done!, a justified honour :D
    smithy21 wrote:

    He's right you know.
  • Thanks for the replies - will go with 9 speed chain, cheers