Dear Sram, 10 speed...
 

Dear Sram, 10 speed AXS please

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In the age of wireless shifting controlled by an app on your phone, why cant we adjust the shift spacing so one Mech can be used regardless of the number of sprockets on the cassette?

I personally would love a 2x10 AXS rear cable front, think of how many wonderful configurations your bike could have.

Maketenspeedgreatagain.


 
Posted : 23/03/2023 9:12 pm
kelvin reacted
 mert
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There's a guy who pops up on some of the euro forums who was reverse engineering the Di2 and Etap protocols to do this sort of thing (think he was based in germany) but not seen him around for a couple of years...


 
Posted : 24/03/2023 8:26 am
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It strikes me as a software thing, although I'm a complete luddite in that field. But isn't everyone else on STW in IT? How hard could it be? (As said by everyone referencing a field they know nothing about).


 
Posted : 24/03/2023 9:34 am
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Why choose 10? Why not 11 or 9?

First off an axs rear would need to be significantly redesigned to work with a double.

Also none of the development work with chains or cassettes has happened with anything below 12 in years so less durability, poorer shifting & less choice - sram only made a 36t so 1x isn't a good option for very many at all.

11s axs though? Yes please...


 
Posted : 24/03/2023 9:47 am
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How hard could it be?

Easier than you may think - possibly just takes some changed to the app. But then SRAM wouldn't be able to market 'smooth & precise shifting' as you could use a range of aftermarket or old existing parts.

That Chinese 'Axs' by ltwoo? That appeared and then disappeared last year could do it with some app configuration - it was 8speed-12speed compatible iirc.

My Xshifter does the same - compatible with any mech and cassette (as long as those two are compatible with each other).

But sometimes the big companies like us to by into new shiny things, the new AXS is officially only compatible with its own expensive Cassette and chain for example.....


 
Posted : 24/03/2023 10:09 am
kelvin reacted
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If you could program the mech to remember the location of each cog on the cassette , that would then allow you to use the mech with any number of gears, it'd also allow you to dial out any mech hanger wonky ness, out of tolerance frame etc (within reason).


 
Posted : 24/03/2023 10:12 am
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☝️this is how my Xshifter works.... You programme the cog position with micro adjustments on the app and the controller remembers where each cog is.....


 
Posted : 24/03/2023 10:17 am
 mert
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Also none of the development work with chains or cassettes has happened with anything below 12 in years so less durability, poorer shifting & less choice

Nah, 9-10-11 were already perfectly durable before we moved to 12. So really not an issue.


 
Posted : 24/03/2023 10:26 am
doomanic and kelvin reacted
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none of the development work with chains or cassettes has happened with anything below 12 in years so less durability, poorer shifting & less choice

Seems a strange thing to say, there's been loads ove dev work on cassettes since the introduction of 12 sp by SRAM (just not by SRAM).... And effectively you'd be opening up more, not less, choice.

But these are both reasons SRAM wouldn't do it ...

axs rear would need to be significantly redesigned to work with a double

Again I can't see why - the only real difference is a 12 sp cassette is wider than a 8/9/10 speed so cross chaining would be an issue if trying to pair a 12sp cassette with a 2x - so as long as your not trying to pair a 12sp cassette to a 2x crank it should be fine. The other issue would be the chain widths running through the jockey wheels, but it would only take a change of the jockey wheel section which it's already designed to do to enable a wider chain.....

The now disappeared from the market, wheeltop EDS rear mech did all of these things..... It also had a similar buttoned controller to the new AXS - so I guessing  SRAM came down heavy on them with patents.

https://www.bikeradar.com/news/wheeltop-eds-ox-series/


 
Posted : 24/03/2023 10:37 am
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Also none of the development work with chains or cassettes has happened with anything below 12 in years so less durability, poorer shifting & less choice

Linkglide


 
Posted : 24/03/2023 10:55 am
kelvin reacted
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That Archer hybrid electric/cable shifter will allow that, you program the cable pull for the amount of gears/brand/etc


 
Posted : 24/03/2023 11:10 am
zerocool reacted
 mert
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axs rear would need to be significantly redesigned to work with a double

Again I can’t see why – the only real difference is a 12 sp cassette is wider than a 8/9/10 speed so cross chaining would be an issue if trying to pair a 12sp cassette with a 2x – so as long as your not trying to pair a 12sp cassette to a 2x crank it should be fine. The other issue would be the chain widths running through the jockey wheels, but it would only take a change of the jockey wheel section which it’s already designed to do to enable a wider chain…..

Nah, the difference in length of the lower run between big ring/small ring is a major nightmare on the SRAM single ring specific rear mechs, the pivot position for the cage, and the cage geometry needs to be carefully calculated to keep the top jockey the right distance from the cassette. Also, don't think SRAM use slant parallelograms anymore, which is the other "fix" to keep the top jockey aligned.


 
Posted : 24/03/2023 11:39 am
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With 11 speed SRAM had 2X and 1X specific rear mechs. A mentioned by mert, there are differences and making the mech 1X (which all Eagle and new transmission are) would mean they would not work well with 2X.

I guess you could do it on an older frame, but that is at your own risk.

I have seen some guys do an 11 speed AXS, by cutting off the biggest cog of a SRAM 12 speed cassette and then just setting the adjustment screws to limit the movement of the mech.


 
Posted : 24/03/2023 12:11 pm
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Seems a strange thing to say...

But these are both reasons SRAM wouldn’t do it …

Linkglide

Which of course sram don't make. Now if the op asked for decent di2...

I get of course it's a tounge in cheek suggestion from the OP but there's no reason 10 would be more sensible than 9 speed and, if you're going to think about sticking a new mech and Shifter on there's no reason to not do the cassette and chain at the same time and simply go to 12.

But I guess what the op really "means" is axs shifting for <£100 which isn't likely in anything other than single speed 😉

(personal experience isn't fact but my own certainly leaves me in little doubt about durability of 9/10 vs 11)


 
Posted : 24/03/2023 12:27 pm
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11s axs though? Yes please…

I have definitely seen a YouTube vid showing that it works fine with 11 and just ghost shifts the 12th


 
Posted : 24/03/2023 12:35 pm
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If I were the op, and really was commited to spending the cash on 10sp axs, I'd buy the wheeltop eds, looking around on AliExpress it's still available on there, it's just no longer listed on the wheeltop website.


 
Posted : 24/03/2023 12:43 pm
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I have definitely seen a YouTube vid showing that it works fine with 11 and just ghost shifts the 12th

That it's precisely not the answer I was looking for after a morning of talking myself out of [s] upgrading [/s] binging one bike to axs because the other one is 11sp.


 
Posted : 24/03/2023 1:17 pm
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@monkeyboyjc

I’d buy the wheeltop eds, looking around on AliExpress

I don't suppose you've a link for that have you? My search didn't find anything appropriate...


 
Posted : 24/03/2023 2:01 pm
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https://m.aliexpress.com/i/1005004686106978.html

Although looking more closely - "can't be shipped to your address ” (UK)

Interestingly Wheeltop are at the Taipei bike bike show this week and are advertising it again, along with a 2x road version with a front mech coming out in May.....


 
Posted : 24/03/2023 2:38 pm
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Ahhh haaa, thank you. Searching for gx axs seems to find it.

No battery or charger though.


 
Posted : 24/03/2023 2:41 pm