New SRAM Red AXS (May 2024)

You should try Campagnolo before making such terrible claims

The problem with that is everything else needs to be campag :see_no_evil:

The biggest limitation in braking is rider skill, followed by tyre friction coefficient. I’ve yet to find disc brakes that can’t lock a wheel so even if one offers slightly greater mechanical advantage or higher friction pad compound, what use is it? It’s all feel and placebo.

I’ve achieved top 0.1% in some very well known and ridden technical descent segments on sram brakes, that tells me all I need to know :joy:

I think much easier actuation and the new pivot location might make effective braking from the hoods a helluva lot easier. Especially true in rougher terrain (e.g. gravel) where you want at least 3 fingers holding on under the hood, leaving only one for braking. I have huge hands and still find it hard to feel confident braking from the hoods on rough terrain with any current groups I’ve tried. (Haven’t tried GRX Di2 though)

I’m sorry, but this is just factually incorrect. Braking is about much more than just the power required to lock a wheel.

Different pads a can absolutely make a major difference in braking performance, especially if you are changing compunds.

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Can you elaborate? How do you define performance?

What measure of performance is meaningfully higher if the system you’re comparing to is already capable of overwhelming the friction of the tyre?

Brake modulation for one….the ability to apply more power faster without locking up a wheel. This gives you the ability to brake harder, later before a turn, thereby increasing performance.

Rim brakes are ā€œalready capable of overcoming the friction of the tireā€, too. It is a meaningless data point.

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Modulation is a fair requirement, but it’s not something sram brakes lack. In fact, it’s one of their strengths imo.

If adding more braking torque was beneficial, we’d all be on 180, 200, 220mm rotors by now.

It’s not and you can check that by heading out on a previous gen sram bike and pulling the front brake as hard as you can at 70km/h.

Regardless of that, 99% of road cyclists don’t get anywhere near the limits of their brakes, what they want is greater heat capacity and fade resistance to cope with dragging the brakes and longer braking events

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OK, I just realized we’ve had this discussion before with you making the same or similar nonsensical arguments.

I’m gonna just move on.

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Hi all. I’ve never used SRAM but it seems like all the gravel bikes I’m looking at now come with SRAM AXS than GRX Di2. Annoying as I’ve got Shimano 11spd on literally all my other bikes and wheels, but it will be what it will be.

What would you say I need to know before committing to this…?

Other than really nothing on a 11 speed Shimano is going to be compatible, not sure what else you need to know. What specific questions do you have?

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That sucks. Why is every bike going to UDH. I have the Grail Gen 1 and I am only limited it. meaning I couldn’t buy the SRAM XX T-Type Eagle Transmission AXS rear Derailleur for my Mullet set up :frowning:

SRAM AXS 1by > GRX Di2.

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we can hope they do it at some point, T-Type installation is a lot easier than anything else, no limit screws and no b-gap screw and chain size from sram makes everything super easy. but clearly road bikes still need more udh adoption before they can commit to that, maybe even xplr being udh direct mount only will limit the adoption into the gravel space, but hard to say

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  • SRAM is a lot more flexible when it comes to 1x gearing options. You can run anything from a 38-tooth to a 56-tooth chain ring (provided they fit your frame), larger ones are available from third parties.
  • Shifting and braking works very well on both systems. You can find scientific treatise on the subject where topics like shift feel and speed are discussed. In my experience, the difference doesn’t matter and is most ā€œaestheticā€.
  • SRAM has a first-party power meter that just works.
  • All of SRAM’s current electronic group sets use the same shifter mechanism in the RD. Thus, shifting will be identical from Apex to Red (if all other drivetrain components are equal).
  • Unless you go for SRAM’s cheapest cassette, you need an XDR driver. But such is life with standards. That would only matter if you want to swap wheels between your bikes.
  • Things like dot fluid vs. mineral oil in brakes or battery philosophy don’t matter much in practice.
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That’s such a helpful answer, thank you. So I need this XDR driver thing. I’m taking that as essentially just swapping between a shimano 11spd freehub/cassette and a XDR 12spd freehub/cassette between bikes if I was to ever bother to do that, which seems fine

Right then, seems like its not the end of the world

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If you have a quality rear hub, then you will be able to purchase an XDR driver. When swapping wheels, you need to replace the HG hub with the XDR driver or vice versa before installing the cassette.

If you switched to SRAM on another bike, you could keep your wheels, replace the HG hub and off you go.

To be fair, as soon as you change any standards (even going from Shimano 11-speed to Shimano 12-speed), you introduce more steps when you have a mixed bike fleet.

The one thing I’d like to add to my list above:

  • Ergonomics is different. Hood, brake and shift ergonomics were the reason why I went with SRAM. The taller humps on the hoods that some people dislike/deride are a main reason why I am not on Shimano. Most people I know prefer SRAM’s simpler paddle system than Shimano’s, especially on a 1x. (Even when I was on Shimano mechanical, I couldn’t get used to Di2’s way of doing things and would keep on misshifting even after 2 weeks. Other people have zero problems, though, YMMV.)
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Love my Uthald although I bought before red came out. Not that I would be spending $6k but it’s fun to think I would. Maybe I’ll update to red shifters next year or something since sram shifter ergonomics are my big complaint

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had my first ride yesterday on the new E1, at this point I’m already set to drop the coin and upgrade the force d2 levers on my gravel bike, the red e1 levers to me felt unbelievably better than the force d2, the effort required is so much less than the force, I have a fresh bleed on both bikes, same rotor size both sram, but I’m using MTX red on my gravel bike with force d2 and trickstuff orange pads on the red e1 but that’s not giving me all the better lever few and effort required on the red e1, it’s that much better imho!

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are they anywhere available to purchase without the brake caliper? From what I’ve gathered the new levers are compatible with old RED calipers but I couldn’t find a shop selling only the levers (yet). I’m so ready to ditch the og RED eTap levers. They’re too clunky for my big hands

I haven’ seen the levers only yet, I’m sure they’ll fill orders for group sets and lever/calipers first. Definitely keeping an eye out for these though, I’m in the same boat and would be happy to upgrade on at least 2 bikes. I gather nearly all the braking improvement comes from the lever and they are fully backward compatible with all current calipers. I wonder how much less expensive lever alone will be…?