Pedals - Dura Ace R9100 vs Ultegra R8000
Moderator: robbosmans
Absolutely - if someone is recommending spending an extra £50 for DA pedals over Ultegra pedals based on about 4mm less stack, I'm interested in knowing where the evidence is that it's better for power transfer and how much real world difference it actually makes, what's wrong with that?
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DA pedals does have a different construction with much improved bearings system which increasing pedals stiffness and makes it run smoother. DA does use two sets of balls bearings, one under the cleat and second next to the bolt for attaching to the cranks. And also a needle bearing, I actually didn't know that!
Ultegra have a combination of bushing on the pedal axle and two sets of ball bearings only under the cleats close to each other (small tilting stiffness). This was the reason why I switched from Ultegra pedals to the DA. DA is really another story and lower stack height is just a part of it. Ultegra and 105 are pretty much the same except a bit lower weight on the Ultegra one.
TBH ultegra is fine enough but just the much refined and advanced construction of DA is why I wanted them.
Here are some schematics of DA pedals:
Ultegra have a combination of bushing on the pedal axle and two sets of ball bearings only under the cleats close to each other (small tilting stiffness). This was the reason why I switched from Ultegra pedals to the DA. DA is really another story and lower stack height is just a part of it. Ultegra and 105 are pretty much the same except a bit lower weight on the Ultegra one.
TBH ultegra is fine enough but just the much refined and advanced construction of DA is why I wanted them.
Here are some schematics of DA pedals:
Functionality > Performance > Weight
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What about the differences between 9000 and 9100 pedals? I have 9000 pedals on all of my bikes and they're great. It looks like there are at least some small cosmetic differences, but I'm not sure if there are any actual performance differences.
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I have both........Slightly lighter. Strike plate is no longer replaceable. No graphics on sides.CrankAddictsRich wrote: ↑Wed Aug 08, 2018 12:55 pmWhat about the differences between 9000 and 9100 pedals? I have 9000 pedals on all of my bikes and they're great. It looks like there are at least some small cosmetic differences, but I'm not sure if there are any actual performance differences.
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In case you are curious, 9000 pedals are 248 grams and 9100 pedals are 234 grams.
https://cyclingtips.com/2017/04/shimano ... als-review
https://cyclingtips.com/2017/04/shimano ... als-review
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I don’t know what they changed but the exit from the 9100 is far more positive than the 9000 pedals. I always found the 9000 a little mushy on the release, especially with the blue cleats. The 9100 is much firmer and I much prefer the sensation.CrankAddictsRich wrote: ↑Wed Aug 08, 2018 12:55 pmWhat about the differences between 9000 and 9100 pedals? I have 9000 pedals on all of my bikes and they're great. It looks like there are at least some small cosmetic differences, but I'm not sure if there are any actual performance differences.
In use I can feel no difference between the two in how they feel and how the cleat moves around.
Mushy is the sign of wear & tear in the spring release. My new 9000 were much firmer than used.BdaGhisallo wrote: ↑Wed Aug 08, 2018 9:17 pmI don’t know what they changed but the exit from the 9100 is far more positive than the 9000 pedals. I always found the 9000 a little mushy on the release, especially with the blue cleats. The 9100 is much firmer and I much prefer the sensation.CrankAddictsRich wrote: ↑Wed Aug 08, 2018 12:55 pmWhat about the differences between 9000 and 9100 pedals? I have 9000 pedals on all of my bikes and they're great. It looks like there are at least some small cosmetic differences, but I'm not sure if there are any actual performance differences.
In use I can feel no difference between the two in how they feel and how the cleat moves around.
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Pretty good summary finally arrived at in this thread. Really, you can’t go wrong with either Ultegra or Dura-Ace. I have a set of Ultegras that I use for testing/riding bikes that have a different pedal system installed.
My own bikes have a mix of 9000/9100 pedals. Differences were outlined above... 14g lighter for the 9100, but the 9100 do not have the needle bearing. I liked the idea of the needle bearing but both types have been absolutely trouble free. I think any difference in feel would come down to either the level of wear on your cleats, the tension adjustment, or the type of cleat you’re using (yellow, blue, red). I use the red. You can be fooled a bit if you let your cleats get too worn before replacing. When you replace them and just jump back on your bike it’s a good idea to practice releasing a few times to just “reset” your muscle memory of what it takes to release them, especially if your old ones were really worn.
My own bikes have a mix of 9000/9100 pedals. Differences were outlined above... 14g lighter for the 9100, but the 9100 do not have the needle bearing. I liked the idea of the needle bearing but both types have been absolutely trouble free. I think any difference in feel would come down to either the level of wear on your cleats, the tension adjustment, or the type of cleat you’re using (yellow, blue, red). I use the red. You can be fooled a bit if you let your cleats get too worn before replacing. When you replace them and just jump back on your bike it’s a good idea to practice releasing a few times to just “reset” your muscle memory of what it takes to release them, especially if your old ones were really worn.
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I have compared brand new and unused 9000 and 9100 pedals with the same shoes and cleats and the difference is very apparent.mpulsiv wrote: ↑Wed Aug 08, 2018 9:23 pmMushy is the sign of wear & tear in the spring release. My new 9000 were much firmer than used.BdaGhisallo wrote: ↑Wed Aug 08, 2018 9:17 pmI don’t know what they changed but the exit from the 9100 is far more positive than the 9000 pedals. I always found the 9000 a little mushy on the release, especially with the blue cleats. The 9100 is much firmer and I much prefer the sensation.CrankAddictsRich wrote: ↑Wed Aug 08, 2018 12:55 pmWhat about the differences between 9000 and 9100 pedals? I have 9000 pedals on all of my bikes and they're great. It looks like there are at least some small cosmetic differences, but I'm not sure if there are any actual performance differences.
In use I can feel no difference between the two in how they feel and how the cleat moves around.