SRAM AXS Gearing

[BadBoyR]

I've gone for the 50/37-10/33 on my new aerobike so I can sit in the middle of the block more often, climb anything and also I can spin out a 52/11 so thought why not

I have spun out 52/11 on my current aero bike, it can be done, however the 48/10 does give you a little more, but I don’t know how much more as I’ve not used it.

Your thinking is the same as mine, considering the cost would like to get it right.


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[FlatlandClimber]

The jump from 12 to 11 is 9.1%, the jump from 11 to 10 is 10%, not sure any one can realistically sense that.
Also, what I was saying: if you need to to shift, you are spinning out 50/11 (which should not happen too often), it is not really a 10% jump, because you are already at a too high cadence on the 50/11... again, how often does that happen that you spin out at like 60kph..

[BadBoyR]

Why would going from 50/11 to 50/10 feel so bad? I mean you are shifting because you are spinning out the 50/11, aren't you?

50/37 10-28/10-33 on my aero bike, 48/35 10-36 on my climber.

I should also point out that I don’t have a sole climbing bike and I’m looking at the sl7 or another aero bike.


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[FlatlandClimber]

That's why I said what I have on my aero bike

[BadBoyR]

That's why I said what I have on my aero bike

Yip


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[rolfo]

Sort of the same question here:

I live in Holland (=flat) and ride here with a 50/34 with a 11-28 cassette. If I go to the ardennes or sometning simular, I put on a 11-30.
I normaly ride with a cdence of 85-90 rpm, with a speed of 28-30km/h.

Now I want to make the step to Sram AXS red and the "SRAM X-range gearcalculator" advices met to take a 46-33 with a 11-28 cassette.
This seems such a mountain setup, and seems realy small.

Does one of you already rode with the 46/33 setup?

Best regards Rolf

[JMeinholdt]

Sort of the same question here:

I live in Holland (=flat) and ride here with a 50/34 with a 11-28 cassette. If I go to the ardennes or sometning simular, I put on a 11-30.
I normaly ride with a cdence of 85-90 rpm, with a speed of 28-30km/h.

Now I want to make the step to Sram AXS red and the "SRAM X-range gearcalculator" advices met to take a 46-33 with a 11-28 cassette.
This seems such a mountain setup, and seems realy small.

Does one of you already rode with the 46/33 setup?

Best regards Rolf

At 28-30kph, I think a 46/10 would be fine for a top end. However, if you want a larger range and don't mind a bit of a jump in between gears, go for a 48/35 and 10-33. That gives you a much lower gear than your current 34/30 and a higher top end than your 50/11.

[FlatlandClimber]

Sort of the same question here:

I live in Holland (=flat) and ride here with a 50/34 with a 11-28 cassette. If I go to the ardennes or sometning simular, I put on a 11-30.
I normaly ride with a cdence of 85-90 rpm, with a speed of 28-30km/h.

Now I want to make the step to Sram AXS red and the "SRAM X-range gearcalculator" advices met to take a 46-33 with a 11-28 cassette.
This seems such a mountain setup, and seems realy small.

Does one of you already rode with the 46/33 setup?

Best regards Rolf

I have ridden every chainring and cassette of the AXS line up (46/33, 48/35, 50/37 and a 54/41, although the latter was just a short spin on a pro bike). 46/33 is too limited in my opinion in the top end gears and for your application has a unnecessarily small gearing.
48/35 is great in the mountains and fast enough on the flat for anything but Racing/ TT. 10-28 (not 11-28) is the fastest cassette you will ever need, the 10-26 has no advantage for me over the 10-28 (the sales are really bad on it as a consequence).
Therefore, my advice woul be, get a 48/35 with the SRAM Red Max (or SRAM Force Wide) rear derailleur. This can handle the following cassettes: 10-28, 10-33 and 10-36.
So the 10-28 is for all your all day riding and probably most riding you will ever do. If you ever hit the steepest of hills/ mountains (Koppenberg, Crazy Dolomite/Swiss Alp climbs) you can choose between either 10-33 or 10-36.
10-28 is my choice for flat TT, flat road racing. 10-33 is my choice for hilly road racing and hillier TT. 10-36 is my choice for days in the mountains.

[jlok]

36T is a god send for climbs at the end of a long ride. The only issue is that my Red AXS short cage shifts are hesitating at some gear jumps. Now I want a wide Force RD...

[DaveS]

The standard RD works great for me, with the 10-36. It requires the B screw to be in nearly all the way. If it's in too far, the 10-11 shift may not execute in the big ring. All shifts work fine. I even use a 46/30 crank for more range. I have the chain length as long as possible. It only lacks tension in the 30/11 that I never use. I can change to a 48/32 with same chain.

[raggedtrousers]

I think that 48/35 and 10-33 is going to be all that the vast majority of amateur users will ever need. I might consider the 10-36 if I was taking the bike up some very serious mountains over long days. Despite some quibbles I have with AXS, as far as gear range and shift logic goes (as well as the app), they have nailed it IMO.

Now if they could bring out an FD that is reliable, and drop the cost 25%...

[FlatlandClimber]

But no one can tell me they actually use the 10-26, right? So if you don't have a standard RD yet, I would get the Max or Wide (depending on willingness to spend money) right away.
They work "out of the box" with 10-36 and are perfectly fine with the other cassettes. Really love my 48/35 10-36 set up.

[DaveS]

Both of my standard force RDs work with the 10-36, as received, out of the box. The B screw still has a turn or two left. Some bikes might need a longer screw. I'd buy the wide model too, if I was buying more.

[rolfo]

Sort of the same question here:

I live in Holland (=flat) and ride here with a 50/34 with a 11-28 cassette. If I go to the ardennes or sometning simular, I put on a 11-30.
I normaly ride with a cdence of 85-90 rpm, with a speed of 28-30km/h.

Now I want to make the step to Sram AXS red and the "SRAM X-range gearcalculator" advices met to take a 46-33 with a 11-28 cassette.
This seems such a mountain setup, and seems realy small.

Does one of you already rode with the 46/33 setup?

Best regards Rolf

I have ridden every chainring and cassette of the AXS line up (46/33, 48/35, 50/37 and a 54/41, although the latter was just a short spin on a pro bike). 46/33 is too limited in my opinion in the top end gears and for your application has a unnecessarily small gearing.
48/35 is great in the mountains and fast enough on the flat for anything but Racing/ TT. 10-28 (not 11-28) is the fastest cassette you will ever need, the 10-26 has no advantage for me over the 10-28 (the sales are really bad on it as a consequence).
Therefore, my advice woul be, get a 48/35 with the SRAM Red Max (or SRAM Force Wide) rear derailleur. This can handle the following cassettes: 10-28, 10-33 and 10-36.
So the 10-28 is for all your all day riding and probably most riding you will ever do. If you ever hit the steepest of hills/ mountains (Koppenberg, Crazy Dolomite/Swiss Alp climbs) you can choose between either 10-33 or 10-36.
10-28 is my choice for flat TT, flat road racing. 10-33 is my choice for hilly road racing and hillier TT. 10-36 is my choice for days in the mountains.

Thanks

[gSporco]

Both of my standard force RDs work with the 10-36, as received, out of the box. The B screw still has a turn or two left. Some bikes might need a longer screw. I'd buy the wide model too, if I was buying more.

Same here, I use my Force AXS 33t RD with both a 10/33 and 10/36 cassette without issue. Just like DaveS said though, if I was buying again, I would get the 36T AXS RD, just incase Sram or someone else comes out with something in the 40 range cassette. My prespective is in the gravel world though as I would love a 10-40 cassette so I dont have to run Eagle AXS in the back on big days.