Upgrading an old SR...
 

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Upgrading an old SRAM X-9 2x9 speed to a 1x11/12 - is this feasible?

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I’ve got an old On-One hardtail with Hope hubs, that has just the middle ring and granny and the 9-speed cassette from when it was originally built up from various parts about twenty years or so ago. For sheer simplicity’s sake, would it be possible to put one of the newer wide-range 11/12 speed cassettes on the existing Hope hub, with a newer rear mech, replacing the SRAM X-9 it’s currently running?

Not sure if these pics will help at all…

 
Posted : 19/09/2025 2:42 am
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I'm not familiar with SRAM stuff, but Shimano 9 speed hubs can also take 10 or 11-speed cassettes. You would need a new cassette, derailleur, RH shifter, chain, and a narrow-wide front ring.

 
Posted : 19/09/2025 3:30 am
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Yes.  I think you could fit an Eagle 12 speed system using  one of the NX level 11 to 52 eagle cassettes that fits on a HG splined free hub. 

Maybe staring the obvious but you would need a 12 speed rear mech, shifters, cassette, chain and chainring. 

 
Posted : 19/09/2025 5:43 am
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I've done this on loads of bikes.   Most of them I've gone with a Shimano 11 speed shifter Deore to XT.  XT is nicer.  Then fitted an 11 speed deore mech you want the RD 5100 which allows you to use the 11-51 11 speed deore cassette. You just need a NW chainring with short chainring boots to match the BCD of your cranks loads on amazon eBay.

You could also go 12 speed then you can use any Shimano shifter mech combo but only the deore cassette as the SLX and above are micro spline.

 

 
Posted : 19/09/2025 6:37 am
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It depends on the hub. I wanted to do the same but on a goldtec hub. I spoke to them and due to flange spacing it can only go to 10 speed unfortunately. 

So check with hope that you are good to go

 
Posted : 19/09/2025 6:48 am
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on a cost vs clicks basis I would go for 1x11 these days, Deore 5100 mech would do the job. 

 
Posted : 19/09/2025 6:56 am
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Hope Pro 2 hub? No problem with 11 speed cassettes, as above. I doubt older hubs like the XC would be an issue, either. I run 11 speed on steel Hope HG freehubs on two bikes. I also run it on the commuter's cheap Shimano 9 speed freehub, but have a 10 speed Microshift Advent X 11-48 cassette, shifter and mech lined up to replace it. Not sure on current prices but worth considering. I wouldn't bother with 12 speed for your purposes. 

 
Posted : 19/09/2025 8:09 am
 cp
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only the deore cassette as the SLX and above are micro spline.

 

All shimano MTB cassettes are microspline inc deore.  You have to go SRAM PG1210 or 1230 or Sunrace/other third party cassette to go 12 speed on an HG freehub.

 

In principal, 11 and 12 speed is no problem on your set up.  Narrow wide chainring, new cassette, new rear mech. new chain and shifter and you should be all good.  Depending on your current cranks and ring you might need some short chain ring bolts.

 

The Deore M5100 11 speed wide range rear mech works perfectly on 12 speed.  I've been running them on a couple of 12 speed bikes, SRAM PG1230 cassette, KMC X12 chain, Aliexpress/Deckas chain ring, SLX 12 speed shifter.

 

Only thing to be mindful of is that with 26" wheels the longer rear mechs for these bigger range cassettes can get close to the ground/rock strikes.

 

 

 

 
Posted : 19/09/2025 8:50 am
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The deore 11-51, eleven speed is NOT microspline, it’s HG. 

I have converted my Gringo from 9 speed triple to 1 x 11 purely to standardise parts with my fatbike. I miss the speed of the 11 - 44 but it’s made things simpler, I’ve not had any unpleasant rock strikes as the mech wasn’t actually any longer.

The Deore mech does the 51tooth but I believe the XT only does 46(8?) and you need the RDM 5100 RGS. Chain I use is the current XT/Linkglide HG701, nice and rust resistant.

 I used a Shimano Deore complete crankset as I had nice Hope bearings to fit it to. The replacement narrow/wide chainrings are cheap too, although the whole assembly was heavier than the XT triple it replaced!

Direct message me if you want any more advice,

Hope this helps!

p.s.

 I might have some parts you can have cheap!

 
Posted : 19/09/2025 9:28 am
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Or budget option is 9 speed wide range cassette (Microshift, Sunrace or ZTTO), swap the middle ring for a narrow wide and use an mech hanger extender. Could alternatively use 9 speed Microshift advent mech and shifter.

Working well on my old bike that my eldest is currently riding witt 11-42 ZTTO cassette.

 
Posted : 19/09/2025 10:52 am
 FOG
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Psa- Banana industries currently have the RD5100 mech in stock for £21 at the moment 

 
Posted : 19/09/2025 10:59 am
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Psa- Banana industries currently have the RD5100 mech in stock for £21 at the moment 

I was gonna say, get one of these and this shifter: Shimano Deore XT11S Right Clamp SL-M8130 Shifter KSLM8130RA — bananaindustries

Add the HG cassette of your choice (Deore may be best value) and you're laughing all the way to the Leeds.

 
Posted : 19/09/2025 2:24 pm
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Is that linkglide shifter going to work with the 5100 mech? I'm still not clear on the compatibility. If not, that site also has M7000 shifters for the same price, and maybe others.

 
Posted : 19/09/2025 2:36 pm
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Apologies, didn't read the listing properly.

Get a normal Deore, SLX or XT 11sp shifter OP.

Or maybe go full Linkglide as they have those mechs as well.

 
Posted : 19/09/2025 2:38 pm
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I updated my mk1 Cotic Soul with a non boost NX Eagle in a box plus a Dub BB.  Everything was there, easy to fit and it works perfectly.

£199 from Certini but you'll need the BB 

 
Posted : 19/09/2025 3:02 pm
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Posted by: Stainypants

You could also go 12 speed then you can use any Shimano shifter mech combo but only the deore cassette as the SLX and above are micro spline.

The bike is all SRAM - I don’t use Shimano. Basically, I want a single ring on the front, so I can ditch the whole front mech/shifter, and have the widest range rear cassette and whatever SRAM mech and shifter I can fit using the Hope hub and rear wheel. 
To repeat, I’m not using Shimano, I stopped using Shimano twenty years ago, and I’ve been perfectly happy with the X-9 on the Inbred in the photos, and the X-0 on my Trek Remedy 66, and I mean to carry on using SRAM in whatever way I can to achieve a 1x 10/11/12, the get the widest possible range using a single front ring. 
Where I ride, there are lots of long, steep hills, the bike weighs around 15kg, and it’s got 2.3” Maxxis, so not a fast bike! I’m too sodding old to get up off the saddle and power up 1:6 hills; I’m barely avoiding getting off and pushing as it is!
This is an on-going plan, I’ve only had the bike back on the road for two or three months, after it’s been sat in the shed for about twelve years, so I’m well out of touch with everything that’s been going on in the world of cycling!

I also have an Inbred 853 SS, and I’ve got to replace at least one of the Hope M4 callipers, because one of the pistons has seized, and it’s too old to get spares, so I also have to factor in the cost of a new brake, so minimum expense on the Inbred 567 in the photos is the plan, it works ok, I just want to make riding it even simpler with a single shifter and the widest possible gear range.

 
Posted : 20/09/2025 12:58 am
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Posted by: CountZero

The bike is all SRAM - I don’t use Shimano.

Your freehub is Shimano HG compatible. Unless you want to change that, you need a cassette that is Shimano HG compatible. It doesn't have to be made by Shimano, but it needs to be compatible with your freehub. Then you need a derailleur, shifter, and chain that are compatible with your cassette, then you need a narrow-wide chainring that is compatible with your chain.

 
Posted : 20/09/2025 2:14 am
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Noting your comments about SRAM vs Shimano :

 

Deore 11 speed cassette will go straight on your hub and have wide range 11/50 or 51 (I forget which). Deore m5100 long cage mech will work with that and any normal (not linkglide) 11 speed hub. Uses Sram 11 speed X1 chain for value vs durability and any aftermarket NW 11 speed chainring that’ll fit in your cranks.

If you want similar range on Sram you’ll have to go 12 speed for wide range. The NX level cassette will fit on your existing freehub and then any eagle stuff will work with it. I’d go for a GX eagle mech over SX or NX for durability and probably a GX shifter. Cheap seam chains can crack the links - I’d go X01 as the option that is durable and a good balance of price vs durability (I’m running xx1 for the bling colours though). Definitely don’t go below GX for the chain.

Chainring wise the sram steel ones are awesome for longevity and chain retention but you’d need sram 1x cranks for that (non boost chainring spacing) - Truvativ stylo dub / GX dub are both decent. If you don’t want to invest in new cranks then any decent 12 speed NW chainring that’ll fit your existing cranks and fit your non boost spacing will work.

 
Posted : 20/09/2025 5:06 am
 cp
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To repeat, I’m not using Shimano, I stopped using Shimano twenty years ago, and I’ve been perfectly happy with the X-9 on the Inbred in the photos, and the X-0 on my Trek Remedy 66, and I mean to carry on using SRAM in whatever way I can to achieve a 1x 10/11/12, the get the widest possible range using a single front ring.

 

Right.. it wasn't remotely clear in your OP that you wanted to stick with SRAM.

 

SRAM 9 speed cassettes were all Shimano HG freehub fit hence all the advice above about fitting HG compatible cassettes. You can get them in 11 and 12 speed but there are limitations in manufacturer around which ones come with HG fittings. As folk have tried to advise.

SRAM and Shimano 11 and 12 speed have the same sprocket pitch so any HG 11 or 12 speed cassette will work for you whether you go SRAM or Shimano for everything else.

 

Keep your shifters and mech to Shimano or SRAM to ensure compatibility with each other.

 

Use any 11 or 12 speed chain, just make sure it's long enough to wrap around whatever chainring size and big cassette sprocket you go for.

 

What's your budget for this? I'd go Shimano over SRAM particularly at the lower budget end of things as I think it feels nicer/shifters better and the shifters have a nicer feel. 

 

 

 
Posted : 20/09/2025 5:12 am
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If you want a complete set of shifter, mech and cassette that has a wide range and fits an HG freehub the Shimano 11 speed stuff is much better quality and less prone to going out of adjustment than the cheaper 12 speed SRAM stuff. Deore 11 speed just works. The high-end SRAM works well too - but you pay for it!

 
Posted : 20/09/2025 5:30 pm
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Posted by: chiefgrooveguru

If you want a complete set of shifter, mech and cassette that has a wide range and fits an HG freehub the Shimano 11 speed stuff is much better quality and less prone to going out of adjustment than the cheaper 12 speed SRAM stuff. Deore 11 speed just works. The high-end SRAM works well too - but you pay for it!

This is exactly my experience. I had that cheap plastic SRAM Eagle OEM crap, (SX?) on my MTB when purchased. Went 'back' to Deore 11 speed and once it's set up it just works when the Eagle I couldn't get to stay indexed for any period. Well it did just work until I bent the mech, but even then it was only 25 quid to replace. Wider gear range too. 

 
Posted : 21/09/2025 11:18 am

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