Etap AXS XPLR

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jfranci3
Posts: 1579
Joined: Tue Jul 26, 2016 5:21 pm

by jfranci3

jlok wrote:
Mon May 03, 2021 5:25 am


Do you mean the AXS brake levers push more fluid (bigger bore hence more fluid per stroke distance)? Also, from which document could we find that 15% figure?

p.s. yes, I'm using Red AXS with 2-piece Level TL post mount caliper.
I did the wrong math! I was looking at the 4piston setup of the Code(?). 16mm & 15mm


Etap (classic) / monoblock = 2x 21mm pistons w/ 2.4mm pads-in spacer (~1.2mm travel/side) https://www.sram.com/globalassets/docum ... manual.pdf & SRAM Spare parts catalog

AXS / Level Ultimate /Split block = 2x 21mm pistons w/ 2.8mm pads-in spacer (~1.4mm travel/side) https://www.sram.com/globalassets/docum ... manual.pdf & SRAM Spare parts catalog

HRD = 2 x 18mm x ?? travel relative (Different spacer/bleedblock design).



So.... caliper piston area per side.... but the motion ratio (leverage of the master cylinder) is important too..assuming the rotor/pad spacing is the same for all of them.
AXS = 346mm2 * travel factor (relative to 1.2mm) 1 = 346
ETAP = 346 * (1.4/1.2) = 403 (16% more fluid pumped than AXS)
HRD = 254mm * .77 (1.85mm total??? 0000000005275_mtb_disc_brake_hose_shortening_and_bleed_eeu_rev_d.pdf prior gen level brakes) = 196 (seems pretty low)

RDY
Posts: 2404
Joined: Thu Jul 30, 2020 10:31 pm

by RDY

Assuming it should be fine to run Shimano compatible 1X or 2X rings up front and an XTR or PNY / KMC chain with a setup like this?

I'd be surprised if they only offer 10-44. I would think a 40 will also be available. You'd then have two 4-tooth jumps from 36 to 40 to 44 tooth cassette options for their road stuff.

Have to say it's getting very tempting to junk the Shimano brifters, FD, RD & calipers on my gravel bike and go SRAM 1X - probably with Trickstuff or Formula calipers. I'm sure the new Shimano 12spd stuff will be decent ... but it could take forever to get them.

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BZE
Posts: 10
Joined: Mon Mar 01, 2021 12:25 pm

by BZE

OnTheRivet wrote:
Thu Apr 29, 2021 7:08 pm
jlok wrote:
Thu Apr 29, 2021 5:09 pm
Would SRAM go "close" ratio for high gears and then go rough at the low end?
10-11-12-13-15-17-
20-23-27-32-38-44

This would be perfect but knowing SRAM they'll probably stick to their weird mtb cog jumps.
I'd like something like a 10-11-12-13-14-15-17-20-23-27-32-38 with a 46 up front for an allround road setup. Or 10-40 as long as tight steps where needed. Would be great if a new RD could handle everything between 33t-44t 1x.

Trkorb
Posts: 146
Joined: Sat Jan 19, 2013 1:17 am

by Trkorb

Sram are only releasing a 10-44 cassette, no official compatibility with other sizes from these new derailleurs.

To help you deal with any dissapointment I can also let you know that alongside these new parts, Zipp will be re-releasing the 101 as a gravel specific carbon wheelset.

And there will also be an XPLR branded dropper.

bikewithnoname
Posts: 1736
Joined: Tue Sep 22, 2009 1:29 pm
Location: Paris

by bikewithnoname

To match thier G40 XPLR tyre. SRAM are going full gravel
"We live in an age when unnecessary things are our only necessities." Oscar Wilde

RDY
Posts: 2404
Joined: Thu Jul 30, 2020 10:31 pm

by RDY

Trkorb wrote:
Tue May 04, 2021 2:55 pm
Sram are only releasing a 10-44 cassette, no official compatibility with other sizes from these new derailleurs.

To help you deal with any dissapointment I can also let you know that alongside these new parts, Zipp will be re-releasing the 101 as a gravel specific carbon wheelset.

And there will also be an XPLR branded dropper.
Maybe to start, but it's difficult to imagine they'll leave it like that. 8 tooth gap in the range is pretty big. 36 to 44. A Red 44 would bode well though. Probably means a Red 36 is also in the works - not sold on the Force or Rival 36.

BZE
Posts: 10
Joined: Mon Mar 01, 2021 12:25 pm

by BZE

Yeah seems a bit odd to put out a new RD only for one cassette. Anyway, will still hold off on deciding RD and cassette til more info arrives, especially on the sequencing. If the RD turns out to be lighter and maybe cheaper than the 2x counterparts, I will still consider it.

For allround road use I would like at least a 46 up front and preferably not loose the 14t, but a bailout is also nice to have. 42x10-33 comes up a bit short in each end if I'm being picky.

DaveS
Posts: 3930
Joined: Fri Mar 24, 2006 1:26 pm
Location: Loveland Colorado

by DaveS

The force 10-36 cassette works great and makes no noise, but missing the 14T can be annoying. Campy knows how to space the sprockets better. The ekar 9-36 without the 9 makes a better 10-36.

10-11-12-13-14-16-18-20-23-27-31-36

kkotsiouros
Posts: 30
Joined: Sun Aug 04, 2019 5:45 pm
Location: Arta Greece

by kkotsiouros

DaveS wrote:
Wed May 05, 2021 2:13 pm
The force 10-36 cassette works great and makes no noise, but missing the 14T can be annoying. Campy knows how to space the sprockets better. The ekar 9-36 without the 9 makes a better 10-36.

10-11-12-13-14-16-18-20-23-27-31-36
:thumbup:

henau212
Posts: 149
Joined: Sun Dec 09, 2018 12:27 pm

by henau212

BZE wrote:
Tue May 04, 2021 5:09 pm
Yeah seems a bit odd to put out a new RD only for one cassette. Anyway, will still hold off on deciding RD and cassette til more info arrives, especially on the sequencing. If the RD turns out to be lighter and maybe cheaper than the 2x counterparts, I will still consider it.

For allround road use I would like at least a 46 up front and preferably not loose the 14t, but a bailout is also nice to have. 42x10-33 comes up a bit short in each end if I'm being picky.
Hoping that Eagle AXS also works with the 10-44 cassette. Specialized seems to be using Shimano 10-45 for the 2022 expert, so that seems to be an option:
https://www.eriksbikeshop.com/specializ ... r5a11188/p

JMeinholdt
Posts: 776
Joined: Wed Feb 26, 2020 10:31 pm
Location: Topeka, KS

by JMeinholdt

henau212 wrote:
Wed May 05, 2021 3:35 pm
BZE wrote:
Tue May 04, 2021 5:09 pm
Yeah seems a bit odd to put out a new RD only for one cassette. Anyway, will still hold off on deciding RD and cassette til more info arrives, especially on the sequencing. If the RD turns out to be lighter and maybe cheaper than the 2x counterparts, I will still consider it.

For allround road use I would like at least a 46 up front and preferably not loose the 14t, but a bailout is also nice to have. 42x10-33 comes up a bit short in each end if I'm being picky.
Hoping that Eagle AXS also works with the 10-44 cassette. Specialized seems to be using Shimano 10-45 for the 2022 expert, so that seems to be an option:
https://www.eriksbikeshop.com/specializ ... r5a11188/p
Wow. Am I the only one who finds it strange that a big name like Specialized is mixing Shimano and SRAM componentry? Is that a normal thing that I just haven't seen?
Wilier Cento10AIR - SRAM Force AXS - Road/race
3T Exploro - SRAM Rival AXS XPLR - Gravel
Wilier Sestiere - Shimano Tiagra - Commuter

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gSporco
Posts: 949
Joined: Mon Jul 13, 2020 4:58 am
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by gSporco

henau212 wrote:
Wed May 05, 2021 3:35 pm
BZE wrote:
Tue May 04, 2021 5:09 pm
Yeah seems a bit odd to put out a new RD only for one cassette. Anyway, will still hold off on deciding RD and cassette til more info arrives, especially on the sequencing. If the RD turns out to be lighter and maybe cheaper than the 2x counterparts, I will still consider it.

For allround road use I would like at least a 46 up front and preferably not loose the 14t, but a bailout is also nice to have. 42x10-33 comes up a bit short in each end if I'm being picky.
Hoping that Eagle AXS also works with the 10-44 cassette. Specialized seems to be using Shimano 10-45 for the 2022 expert, so that seems to be an option:
https://www.eriksbikeshop.com/specializ ... r5a11188/p
In the mountain bike world its not uncommon to see a mix of Sram and Shimano and before 12 speed we would see bikes sold from our LBS with a mix and match Sram/Shimano

Although I like the idea of the Diverge build above; my only concern would be the use of microspline freehub locking you into Shimano only for now MTB cassettes. You can me the case for XDR sram locking you in, but in that case I would say you at least have the option of cassettes from 10-26 all the way to 10-52 and everything in between especially with EXPLR coming out.

No microspline shouldn't be a deal braker especially if Shimano road 12 speed goes to microspline, but all the leaked details so far say that Road Shimano will stay HG freehub. If the former is true and we see a complete migration to microspline than we can assume a new 12 speed GRX which will then provide more cassette choices.

Either way, its a great time to be a cyclist with so many options. :)
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henau212
Posts: 149
Joined: Sun Dec 09, 2018 12:27 pm

by henau212

gSporco wrote:
Wed May 05, 2021 7:01 pm
henau212 wrote:
Wed May 05, 2021 3:35 pm
BZE wrote:
Tue May 04, 2021 5:09 pm
Yeah seems a bit odd to put out a new RD only for one cassette. Anyway, will still hold off on deciding RD and cassette til more info arrives, especially on the sequencing. If the RD turns out to be lighter and maybe cheaper than the 2x counterparts, I will still consider it.

For allround road use I would like at least a 46 up front and preferably not loose the 14t, but a bailout is also nice to have. 42x10-33 comes up a bit short in each end if I'm being picky.
Hoping that Eagle AXS also works with the 10-44 cassette. Specialized seems to be using Shimano 10-45 for the 2022 expert, so that seems to be an option:
https://www.eriksbikeshop.com/specializ ... r5a11188/p
In the mountain bike world its not uncommon to see a mix of Sram and Shimano and before 12 speed we would see bikes sold from our LBS with a mix and match Sram/Shimano

Although I like the idea of the Diverge build above; my only concern would be the use of microspline freehub locking you into Shimano only for now MTB cassettes. You can me the case for XDR sram locking you in, but in that case I would say you at least have the option of cassettes from 10-26 all the way to 10-52 and everything in between especially with EXPLR coming out.

No microspline shouldn't be a deal braker especially if Shimano road 12 speed goes to microspline, but all the leaked details so far say that Road Shimano will stay HG freehub. If the former is true and we see a complete migration to microspline than we can assume a new 12 speed GRX which will then provide more cassette choices.

Either way, its a great time to be a cyclist with so many options. :)
I am wondering how they are solving the issue with the 12 speed GRX. If they keep on using the MTB cassettes, is the 1by going to use microspline and the 2by HG? I simply cannot imagine that they are creating 11-40/42/45 12 speed HG cassettes next to the MTB cassettes :noidea:

Hexsense
Posts: 3288
Joined: Wed Dec 30, 2015 12:41 am
Location: USA

by Hexsense

On Shimano 12s,
I guess only road cassette keep HG. like 11-28 to 11-34 are HG.
Then, any offroad cassette from 10-34 to 10-45 are microspline like MTB one.
The distinct different between road and offroad is offroad one that is designed for 1x chainrings start from 10t for big range without huge weight. Narrow range road cassette can keep starting from 11 because efficiency is more important than range.

jfranci3
Posts: 1579
Joined: Tue Jul 26, 2016 5:21 pm

by jfranci3

Just saw a SRAM Eagle 52t dork disc.. is this aero?
Image

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