Shimano 11-30 cassettes?

[vav]

Thanks!

[cnighbor1]

Suggest a compact crankset 50T / 34t while waiting for a 30T
Older Uniglide has a 32t maybe there is a 30t in one of thier series
Sora etc

[spartanKid]

I am currently running the Tiagra 12-30 cassette with a 6600 mid-cage RD on a Ridley frame and it fits fine. The B screw is only about halfway in as well. I bet I could squeeze a 32 on there no problem.

The Tiagra 12-30 cassette is available on amazon prime for like $35

[Sandy]

Shimano now lists on its website a 12-30 Ultegra 10 speed cassette:

12-13-14-15-17-19-21-24-27-30

I believe the largest cog the 6700 derailleur (like the 7900) is 28.



Sandy

[sandyrs]

Originally Posted by toosahn

I don't think running a wide range like that deems you "out-of-shape". All depends on the hills you are trying to crank up.

THIS. macho refusal to use wide range cassettes should have died with the 80s. I have a friend running the new tiagra 12-30 with an ultegra 6600 RD and he says it works great.

[oldpotatoe]

Originally Posted by dave thompson

I had an IRD 11-30 cassette that worked very well for me. I believe that Shimano has an 11-30 10-speed in the Tiagra level.

Tiagra is still 9s, pretty sure.

Take 2...see the 12-30 Tiagra 10s cogset.

[Sandy]

The cassette I listed below is a 10 speed Ultegra, for sure, as it is on Shimano's website under the choices for cog configuration. I am having a new bike built and am using Dura-Ace 7900 primarily. The max size given on the Shimano website for Ultegra or Dura-Ace is 28 teeth. I bought a 28 tooth Dura-Ace cassette but would purchase the 12-30 Ultegra if I knew the Dura-Ace 7900 derailleur would work with it (or Ultegra) with my 50/34 compact. I have a larger cassette (11-34) Shimano XT and a 9 speed Shimano XT derailleur purchased for hilly rides. I thought Shimano might come out with a larger cog cassette. The Ultegra 12-30 is quite appealing to me.




Safely Spinning Shimano's Stellar STI,


Sandy

[bobswire]

Originally Posted by Sandy

The cassette I listed below is a 10 speed Ultegra, for sure, as it is on Shimano's website under the choices for cog configuration. I am having a new bike built and am using Dura-Ace 7900 primarily. The max size given on the Shimano website for Ultegra or Dura-Ace is 28 teeth. I bought a 28 tooth Dura-Ace cassette but would purchase the 12-30 Ultegra if I knew the Dura-Ace 7900 derailleur would work with it (or Ultegra) with my 50/34 compact. I have a larger cassette (11-34) Shimano XT and a 9 speed Shimano XT derailleur purchased for hilly rides. I thought Shimano might come out with a larger cog cassette. The Ultegra 12-30 is quite appealing to me.





Safely Spinning Shimano's Stellar STI,


Sandy

Out of curiosity I threw on a IRD 12-30 cassette with DA 7800 derailleur, it is close to being at it's limit but seems to work fine.

[oldpotatoe]

Originally Posted by bobswire

Out of curiosity I threw on a IRD 12-30 cassette with DA 7800 derailleur, it is close to being at it's limit but seems to work fine.

Since the b limit screw sin't screwed all the way in, it's not really 'at it's limit'..yep, a 12-30 on a 7900 RD would probably be fine.

[Sandy]

I really appreciate the effort and comments. Very helpful. Thanks!


Sandy

[dave thompson]

Sandy, I'll go even further and say; because the geometry of the 6700 and 7900 rear derailleurs are extremely close, if not identical, and because of the success that I've had using 11-32 cassettes with 6700 derailleurs, the 7900 rear derailleur will *easily* handle a cassette with a 30t large cog.

[bobswire]

Originally Posted by oldpotatoe

Since the b limit screw sin't screwed all the way in, it's not really 'at it's limit'..yep, a 12-30 on a 7900 RD would probably be fine.

That's not the limit I'm talking about but you're right it was not needed in this instance for clearance.

[Chance]

Originally Posted by Sandy

The cassette I listed below is a 10 speed Ultegra, for sure, as it is on Shimano's website under the choices for cog configuration. I am having a new bike built and am using Dura-Ace 7900 primarily. The max size given on the Shimano website for Ultegra or Dura-Ace is 28 teeth. I bought a 28 tooth Dura-Ace cassette but would purchase the 12-30 Ultegra if I knew the Dura-Ace 7900 derailleur would work with it (or Ultegra) with my 50/34 compact. I have a larger cassette (11-34) Shimano XT and a 9 speed Shimano XT derailleur purchased for hilly rides. I thought Shimano might come out with a larger cog cassette. The Ultegra 12-30 is quite appealing to me.




Safely Spinning Shimano's Stellar STI,


Sandy

You'd also be exceeding the RD's total capacity by one tooth, which isn't much but may be a problem in a few cases. It's interesting to note that Shimano media announced a new mid-range RD for bikes with 11-30 (and/or 11-32, not sure) cassettes for 2013. At some point total capacity is exceeded too far.

[sg8357]

Originally Posted by oldpotatoe

Tiagra is still 9s, pretty sure.

Take 2...see the 12-30 Tiagra 10s cogset.

Note that it will not work with D/A 7800 hub.

[dave thompson]

Originally Posted by sg8357

Note that it will not work with D/A 7800 hub.

It works with all Shimano standard 8/9/10 speed hubs.