ryanw wrote: ↑
Wed Oct 06, 2021 9:45 pm
Funny you're saying they're noiser.
I run the 11-25T CG-1190 on two sets of wheels and it's much quieter than DA9100 cassettes.
Shifting is perfect and crisp, super sharp and zero hesitation.
This is on an SL7 with DM hanger and CS OSPW.
Have used both CN-HG901 and CN-M9100 chains with zero issues.
There was a similar thread on this topic about a year ago where I reportet about my experience which is similar to ryanw:
So while for me and a few others the XG1190 casette is working equal or better than the original DA casette, many folks in this thread report the opposite, i.e., XG1190 not working well with DA9150 Di2 drivetrain. Why is that?
Some people are changing their DA 11-XX cassette to XG1190 11-32...
KCookie wrote: ↑
Thu Sep 16, 2021 1:19 pm
I changed to a Sram 1190 11-32 cassette for today's ride and I'll certainly be changing back to DA 11-30. I have this cassette on my other bike and the shifting is quite, quick and just perfect.
There are two issues with that:
1) 11-32 cassettes exceeds the capacity of the DA9100 drivetrain which is 35T IIRC. 11-30 cassette is max for DA9100. Guess why there is no CS-R9100 with 11-32?
2) going to a larger cassette needs a longer chain. Otherwise, chain tension is getting to high which impairs shifting quality towards the larger cogs.
Given that ryan and myself are using OSPW's which not only increases the capacity of the drivetrain, it also forces you to adjust both chainlenght and tension to get crisp and precise shifting. My suspicion is, to get good results from a XG1190 casette with a DA drivetrain, you have to keep an eye on having correct chainlength and -tension (through adjusting the RD) and of course you must not exceed the overall capacity of the DA9100 drivetrain (which is 35T IIRC).
This might also explain why it is working poorly on one bike and acceptable on another bike. The goemetry of those two bikes might by different, particularly the chainstays have different lengths. So, most probably thesse bikes have different chainlenghts and -tensions, one of which is working with the XG1190 casette and the other is not.
Just a couple of thoughts...