Ultegra SL with 11- 28 rear block
Comments
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officially it's 27t but usually you can squeeze a bit more by adjusting the tension screw. The new DA mechs have more capacity but I'd also be interested to see if anyone has tried the 11-28 with the 105/Ultegra stuff, as I'm tempted to get one for the Marmotte...Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer0
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So has anyone tried it yet then? 11- 28 cassette
Regards
Allan0 -
I have a 13-28 Marchisio custom cassette on an Ultegra SL equipped bike. It works perfectly, as long as you have the long cage rear mech...
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An 11-28 cassette has a very wide spread of ratios, it would drive me mad in a group ride!0
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Can I bump this question up the list again and ask if anyone has used an 11- 28? Similar to maddog2 I'm thinking that extra tooth may get me up the last 10k of the Marmotte. If running just out of spec, 11-28 vs 12-27, will there be a difference in compatibility using a compact or regular chainset?
ThanksSonic382 wrote:So has anyone tried it yet then? 11- 28 cassette
Regards
Allan0 -
I use the 11-28 with Ultegra (not SL, but I think they're exactly the same).
Didn't need to adjust anything and it works fine with short cage and compact chainset.
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It should work OK as The Stone says. At the worst you may have rather a slack chain on small/small but you would not be using that anyway. Just make sure you have enough chain to go to big/big safely. You will try one day, probably unintentionaly. Less of a problem with a standard chainset.0
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No problems with an Ultegra-SL short-cage and a 11-28 SRAM cassette here.
My 08 Specialized Tarmac Comp shipped with that configuration so must be ok.0 -
You've got a resonable amount of slack concerning the capacities, my pub bike has uses a short cage ultegra mech with an 11-32 (for dragging heavy panniers or the trailer). The only concession is that the chain is sized round the big ring and the third biggest to keep the chain tension sensible.0
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mostly harmless wrote:You've got a resonable amount of slack concerning the capacities, my pub bike has uses a short cage ultegra mech with an 11-32 (for dragging heavy panniers or the trailer). The only concession is that the chain is sized round the big ring and the third biggest to keep the chain tension sensible.
Is that 9 or 10 speed? Did you have any problems getting the mech to clear the cassette?
I'm thinking of getting a 12-30 10sp cassette to use for the mountains.0 -
IanTrcp wrote:I have a 13-28 Marchisio custom cassette on an Ultegra SL equipped bike. It works perfectly, as long as you have the long cage rear mech...
sorry to hi-jack a little - I am curious to know what year frameset your bike is - it's obviously an S-Works Roubaix but what year?
Reason I ask is that I can't fit a 13tooth smallest sprocket on my 2008 S-Works roubaix as it fouls the seatstay - i even ruined a frame finding out!
does it fit ok??0 -
TheStone wrote:Is that 9 or 10 speed? Did you have any problems getting the mech to clear the cassette?
I'm thinking of getting a 12-30 10sp cassette to use for the mountains.
My setup is nine speed (stock mtb block) and didn't have any problems with the mech (and it's shagged so hopefully a new one should be better).
I've seen 12-30 done with a mix of Marchisio and Shimano sprockets by swapping the last three sprockets on the carrier out of a 12-25. I think 21-23-25 became 22-26-30 if that makes sense. And you've still got 12-17 in one sproket jumps too. The key thing seems keeping the chain tight by not sizing for biggest and biggest.0 -
Just put the same on my bike with the long cage mech on a triple to stop me wheelying up 17% hills - works fine, did need to adjust the b-screw a little.Shmo wrote:No problems with an Ultegra-SL short-cage and a 11-28 SRAM cassette here.
To be honest it feels like the shifting is a little more positive, even using a Shimano chain!
Cheers,
Chris0 -
I have a Specialized Roubaix with a 50-34 Ultegra SL compact crankset, a shortcage Ultegra SL rear mech and the bike came standard with the Ultegra SL wheelset.
I recently ran a modified 12-28 Ultegra rear cassette for the 2009 Audax Alpine Classic in Victoria in January.
Prior to the Alpine Classic I investigated using a SRAM OG1070 11-28 rear cassette but unfortunately this does not fit on my Shimano 10sp hub. The Dura Race 10sp 11-28 cassette was too expensive to justify after Christmas. (Shimano did not recommend going beyond a 27T cassette with the Ultegra SL shortcage rear mech even though many Specialized bikes came standard with an SRAM 11-28 cassette????)
For the ride I had my 12-27 cassette modified by simply taking out the 15T ring and adding a Miche 28T ring. Very easy to do and relatively cheap and reversible.
The set up worked for the ride and certainly provided that extra granny gear when things went skywards. After the ride I simply replaced the 15T and restored the cassette to a 12-27.
Issues.
The B screw on the rear dérailleur needed to be at the limit and even at this position the jockey wheels did not have quite have enough clearance and touched the cassette at the extreme range of the gears. Maybe I needed to adjust the length of the chain as well.
Conclusion
Would I do it again for a one off ride with truck loads of climbing? Absolutely. I have the 28T ring and can swap it as required. Would I keep it there all the time? - No - too much clatter.
I am holding out and saving for the yet to be released new Ultegra 11-28 compatible rear mech. Hopefully it will be considerably cheaper than the new Dura Race 7900 version.0 -
I have a 2008 Specialized Tricross and it came standard with Ultegra rear derailleur (not long cage) and SRAM OG1070 11-28T cassette - works just fine. The chainrings are 34/48T so if you are running a compact with a +50T big ring then you may need long cage.0
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Elvernell wrote:
Prior to the Alpine Classic I investigated using a SRAM OG1070 11-28 rear cassette but unfortunately this does not fit on my Shimano 10sp hub.
I have no problems running a SRAM OG1070 11-28 on my Shimano 10sp hub (on Bontrager Race Lite wheels) - you just need to take off the 1mm spacer that comes with the Shimano cassette, as the SRAM cassette has that built in.
To be honest, I find the SRAM cassette shifts better (using a Shimano chain too!) than my old cassette.
Cheers,
Chris0 -
Hi Elvernell, welcome on board! I have the same problem, can't fit the SRAM 11-28 on my DA hubs, and don't have the cash for the DA cassette.
Anyone got any idea where I can find a Miche 28T online? Could be an interesting option.
CheersElvernell wrote:I have a Specialized Roubaix with a 50-34 Ultegra SL compact crankset, a shortcage Ultegra SL rear mech and the bike came standard with the Ultegra SL wheelset.
I recently ran a modified 12-28 Ultegra rear cassette for the 2009 Audax Alpine Classic in Victoria in January.
Prior to the Alpine Classic I investigated using a SRAM OG1070 11-28 rear cassette but unfortunately this does not fit on my Shimano 10sp hub. The Dura Race 10sp 11-28 cassette was too expensive to justify after Christmas. (Shimano did not recommend going beyond a 27T cassette with the Ultegra SL shortcage rear mech even though many Specialized bikes came standard with an SRAM 11-28 cassette????)
For the ride I had my 12-27 cassette modified by simply taking out the 15T ring and adding a Miche 28T ring. Very easy to do and relatively cheap and reversible.
The set up worked for the ride and certainly provided that extra granny gear when things went skywards. After the ride I simply replaced the 15T and restored the cassette to a 12-27.
Issues.
The B screw on the rear dérailleur needed to be at the limit and even at this position the jockey wheels did not have quite have enough clearance and touched the cassette at the extreme range of the gears. Maybe I needed to adjust the length of the chain as well.
Conclusion
Would I do it again for a one off ride with truck loads of climbing? Absolutely. I have the 28T ring and can swap it as required. Would I keep it there all the time? - No - too much clatter.
I am holding out and saving for the yet to be released new Ultegra 11-28 compatible rear mech. Hopefully it will be considerably cheaper than the new Dura Race 7900 version.0 -
Hi Term1te
Paul Hillbrick in Sydney supplies the Miche cassettes and individual cogs. www.hillbrick.com.au
The Miche cogs have the spacer inbuilt. All I needed to do to modify my Ultegra 12-27 cassette was to remove the 15t cog and move the spacer to the end of the cassette after the new 28t cog. I have to admit that Paul changed it over for me so I didnt see first hand where the spacer ended up. It was all pretty straightforward though.
Worked a treat and was a fraction of the cost of the DA cassette. Apart from the Alpine Classic I have no need for the 28T so it is a cheap and reversible way of customising things without having multiple cassettes.
Regarding the SRAM OG 1070 11-28 cassette it seemed to fit all hubs other than those on Shimano factory built complete wheelsets (105, Ultegra and DA). It would have fitted just fine on my wife's bontrager 10sp wheelset but not on my Ultegra wheelset. Bugger.
Hope this helps
Elvernell0 -
My mate has 11-30 on his bike and it works fine.
I've riden it and it's very smooth! (9speed, by the way)
Strange though - if you can go that high, why don't Shimano advertise the product as going that high? It obviously works smoothly enough to work without damaging any components...0 -
On the SRAM website it says that their 11-28 cassette is Shimano compatible, but not DA. Is this only factory built DA wheels, or all DA hubs? I've got some Open Pros built up on DA hubs and would be interested to know if they are compatible. :?0
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The SRAM 11-28 might have 11,12,13,14,15,17,19,22,25,28 sprockets. If so, the gap from 19 to 22 is way too big.
The Shimano 11-28 might have 11,12,13,14,15,17,19,21,24,28 sprockets. If so, the gap from 24 to 28 is way too big.
A better way to do it would be 11,12,13,15,17,19,21,23,25,28. The beauty of this cassette is that 3 right clicks are needed when you do a front shift. (This means that you will instantly be in the right gear when a front shift is made...unlike the SRAM and Shimano cassettes above, which require a varying number of right clicks. Sometimes 3, sometimes 4, and sometimes 5.)0 -
Who sells a cassette with above mentioned ratios.
11,12,13,15,17,19,21,23,25,28
I'm guessing you have to buy separate cogs and put it together yourself.
Looks like a good range of gears for a hilly sportive ride.
8) 8) 8)0 -
Sort of related to this topic. Does anyone know, on vertical dropout frames, if the dimension from the axle center line to the center line of the rear mech. bolt hole is a standard dimension throughout the industry now or does it vary slightly by manufacturer?
I'm curious because this does have a effect on how big a rear cog you can run.
Dennis Noward0
