Eagle derailleur was feeling left out - so I made a thing - replaces the washer on a standard UDH dropout with a "Brace" that links...
Eagle derailleur was feeling left out - so I made a thing - replaces the washer on a standard UDH dropout with a "Brace" that links the rear derailleur for strength and stiffness.
Should prevent the hanger from bending quite a bit. Clean up the design to make it CNC millable? I'm guessing there's a post going into the...
Should prevent the hanger from bending quite a bit. Clean up the design to make it CNC millable? I'm guessing there's a post going into the derailleur, so maybe make it a two part item?
Can be made millable, but had fun with the shape since it didn't have to be. SLM is a great process - only advantage i see...
Can be made millable, but had fun with the shape since it didn't have to be. SLM is a great process - only advantage i see of milling is ability to anodize colors - AlSi10Mg is highly corrosion resistant and strong, but it's silver (conveniently the silver goes with the derailleur cage and decals quite well).
Titanium is an option - with the fun anodization options that brings, but much more expensive for same utility so aside from a small number of misguided humans (like myself - purple Ti for me) aluminum makes more sense.
There's a small post as you were picturing - threaded so the derailleur doesn't need any modification (threads through not just the nub is threaded).
Ah, sneaky. No need to do a two parter on this one.
Should prevent the hanger from bending quite a bit. Clean up the design to make it CNC millable? I'm guessing there's a post going into the...
Should prevent the hanger from bending quite a bit. Clean up the design to make it CNC millable? I'm guessing there's a post going into the derailleur, so maybe make it a two part item?
Can be made millable, but had fun with the shape since it didn't have to be. SLM is a great process - only advantage i see...
Can be made millable, but had fun with the shape since it didn't have to be. SLM is a great process - only advantage i see of milling is ability to anodize colors - AlSi10Mg is highly corrosion resistant and strong, but it's silver (conveniently the silver goes with the derailleur cage and decals quite well).
Titanium is an option - with the fun anodization options that brings, but much more expensive for same utility so aside from a small number of misguided humans (like myself - purple Ti for me) aluminum makes more sense.
There's a small post as you were picturing - threaded so the derailleur doesn't need any modification (threads through not just the nub is threaded).
I'd buy that twice (and I don't even have an UDH compatible frame yet)
Replaceable derailleur hangers are designed to break to save your frame not your derailleur.
Are we talking about the same thing here?
the UDH, is in fact a Universal Derailleur hanger, that is designed to be sacrificial.
the new SRAM transmission mounting is designed in much the same way, with replaceable/rebuildable parts.
What has been designed by @kroe can be thought to be a stiffner of sorts, that could also "shrug" off impacts, similar to what both specialized and Syntace has done in the past, but obviously not for UDH equpiied bikes, which would make his design novel in that it could be used on any bike with that uses a UDH.
Should prevent the hanger from bending quite a bit. Clean up the design to make it CNC millable? I'm guessing there's a post going into the...
Should prevent the hanger from bending quite a bit. Clean up the design to make it CNC millable? I'm guessing there's a post going into the derailleur, so maybe make it a two part item?
Can be made millable, but had fun with the shape since it didn't have to be. SLM is a great process - only advantage i see...
Can be made millable, but had fun with the shape since it didn't have to be. SLM is a great process - only advantage i see of milling is ability to anodize colors - AlSi10Mg is highly corrosion resistant and strong, but it's silver (conveniently the silver goes with the derailleur cage and decals quite well).
Titanium is an option - with the fun anodization options that brings, but much more expensive for same utility so aside from a small number of misguided humans (like myself - purple Ti for me) aluminum makes more sense.
There's a small post as you were picturing - threaded so the derailleur doesn't need any modification (threads through not just the nub is threaded).
Eagle derailleur was feeling left out - so I made a thing - replaces the washer on a standard UDH dropout with a "Brace" that links...
Eagle derailleur was feeling left out - so I made a thing - replaces the washer on a standard UDH dropout with a "Brace" that links the rear derailleur for strength and stiffness.
You’ve updated/re-invented the North Shore Billet hanger banger! I used to run them on my street trails bike in the early 2000’s. I had a Chris King 135mm non disc hub upgraded to fun bolts with the outer washer removed to hold the hanger banger on. It was a near perfect fit. Neat! Specialized later copied the design.
Are we talking about the same thing here?
the UDH, is in fact a Universal Derailleur hanger, that is designed to be sacrificial.
the new SRAM...
Are we talking about the same thing here?
the UDH, is in fact a Universal Derailleur hanger, that is designed to be sacrificial.
the new SRAM transmission mounting is designed in much the same way, with replaceable/rebuildable parts.
What has been designed by @kroe can be thought to be a stiffner of sorts, that could also "shrug" off impacts, similar to what both specialized and Syntace has done in the past, but obviously not for UDH equpiied bikes, which would make his design novel in that it could be used on any bike with that uses a UDH.
Does that clear it up, or am i missing something?
The UDH is sacrificial, but it doesn't protect the derailleur it protects the frame.
Sometime people think the replaceable derailleur hanger is to protect the derailleur. It is not, it protects the frame.
One of the potential downsides to transmission is that without a sacrificial derailleur hanger, there is more potential to damage the frame (or hub) in a crash.
It's designed to rotate to hopefully move the derailleur out of the way.
Exactly, UDH rotates.
Linking the derailleur to the stiff and strong UDH axle assembly strengthens and stiffens. This could change failure modes like many bike modifications (including a full mount derailleur), but the UDH dropout will still rotate on impact like it should, and the brace does not stick out past the derailleur body (it's not a new snaggy bit).
Eagle derailleur was feeling left out - so I made a thing - replaces the washer on a standard UDH dropout with a "Brace" that links...
Eagle derailleur was feeling left out - so I made a thing - replaces the washer on a standard UDH dropout with a "Brace" that links the rear derailleur for strength and stiffness.
You’ve updated/re-invented the North Shore Billet hanger banger! I used to run them on my street trails bike in the early 2000’s. I had a Chris...
You’ve updated/re-invented the North Shore Billet hanger banger! I used to run them on my street trails bike in the early 2000’s. I had a Chris King 135mm non disc hub upgraded to fun bolts with the outer washer removed to hold the hanger banger on. It was a near perfect fit. Neat! Specialized later copied the design.
Neat, hadn't seen that before.
UDH makes the concept more practical, since it standardizes position of the derailleur relative to the axle. Forward we regress!
Eagle derailleur was feeling left out - so I made a thing - replaces the washer on a standard UDH dropout with a "Brace" that links...
Eagle derailleur was feeling left out - so I made a thing - replaces the washer on a standard UDH dropout with a "Brace" that links the rear derailleur for strength and stiffness.
This looks pretty good, but I'm left wondering how many people can stand on it?
Are we talking about the same thing here?
the UDH, is in fact a Universal Derailleur hanger, that is designed to be sacrificial.
the new SRAM...
Are we talking about the same thing here?
the UDH, is in fact a Universal Derailleur hanger, that is designed to be sacrificial.
the new SRAM transmission mounting is designed in much the same way, with replaceable/rebuildable parts.
What has been designed by @kroe can be thought to be a stiffner of sorts, that could also "shrug" off impacts, similar to what both specialized and Syntace has done in the past, but obviously not for UDH equpiied bikes, which would make his design novel in that it could be used on any bike with that uses a UDH.
The UDH is sacrificial, but it doesn't protect the derailleur it protects the frame.
Sometime people think the replaceable derailleur hanger is to protect the derailleur...
The UDH is sacrificial, but it doesn't protect the derailleur it protects the frame.
Sometime people think the replaceable derailleur hanger is to protect the derailleur. It is not, it protects the frame.
One of the potential downsides to transmission is that without a sacrificial derailleur hanger, there is more potential to damage the frame (or hub) in a crash.
Direct from SRAM its designed to protect the derailleur and the frame.
Are we talking about the same thing here?
the UDH, is in fact a Universal Derailleur hanger, that is designed to be sacrificial.
the new SRAM...
Are we talking about the same thing here?
the UDH, is in fact a Universal Derailleur hanger, that is designed to be sacrificial.
the new SRAM transmission mounting is designed in much the same way, with replaceable/rebuildable parts.
What has been designed by @kroe can be thought to be a stiffner of sorts, that could also "shrug" off impacts, similar to what both specialized and Syntace has done in the past, but obviously not for UDH equpiied bikes, which would make his design novel in that it could be used on any bike with that uses a UDH.
The UDH is sacrificial, but it doesn't protect the derailleur it protects the frame.
Sometime people think the replaceable derailleur hanger is to protect the derailleur...
The UDH is sacrificial, but it doesn't protect the derailleur it protects the frame.
Sometime people think the replaceable derailleur hanger is to protect the derailleur. It is not, it protects the frame.
One of the potential downsides to transmission is that without a sacrificial derailleur hanger, there is more potential to damage the frame (or hub) in a crash.
Direct from SRAM its designed to protect the derailleur and the frame.
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance; have any of y'all? Or even heard of one?
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance...
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance; have any of y'all? Or even heard of one?
Careful man. Unless you’re trying to trigger all the gearbox zealots on purpose…
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance...
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance; have any of y'all? Or even heard of one?
A friend at the shop I used to work at says they're getting Transmission problems all the time (mostly imprecise setup and some have had the mount start 'chewing' into the frame, but no broken stays as far as I know). Seems like it's generally better suited to a high standard of frame quality and very careful setup, two things not typically associated with most mountain bikes and their riders
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance...
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance; have any of y'all? Or even heard of one?
A friend at the shop I used to work at says they're getting Transmission problems all the time (mostly imprecise setup and some have had the...
A friend at the shop I used to work at says they're getting Transmission problems all the time (mostly imprecise setup and some have had the mount start 'chewing' into the frame, but no broken stays as far as I know). Seems like it's generally better suited to a high standard of frame quality and very careful setup, two things not typically associated with most mountain bikes and their riders
My 2 mechanic mates vouch for this, also a few of the frames aren't aligned perfectly out of the molds due to paint the thread tapping and hub facing not being perfect, so the alignment can be slightly off, and theres no quick fix, as you can just bend the hanger to align things anymore.
A friend at the shop I used to work at says they're getting Transmission problems all the time (mostly imprecise setup and some have had the...
A friend at the shop I used to work at says they're getting Transmission problems all the time (mostly imprecise setup and some have had the mount start 'chewing' into the frame, but no broken stays as far as I know). Seems like it's generally better suited to a high standard of frame quality and very careful setup, two things not typically associated with most mountain bikes and their riders
I'm not surprised, it's definitely *very* sensitive to alignment (and thus proper torque) issues.
I'd bet SRAM is quietly working to improve that since getting bike manufacturers to improve tolerances seems unlikely...
Are we talking about the same thing here?
the UDH, is in fact a Universal Derailleur hanger, that is designed to be sacrificial.
the new SRAM...
Are we talking about the same thing here?
the UDH, is in fact a Universal Derailleur hanger, that is designed to be sacrificial.
the new SRAM transmission mounting is designed in much the same way, with replaceable/rebuildable parts.
What has been designed by @kroe can be thought to be a stiffner of sorts, that could also "shrug" off impacts, similar to what both specialized and Syntace has done in the past, but obviously not for UDH equpiied bikes, which would make his design novel in that it could be used on any bike with that uses a UDH.
The UDH is sacrificial, but it doesn't protect the derailleur it protects the frame.
Sometime people think the replaceable derailleur hanger is to protect the derailleur...
The UDH is sacrificial, but it doesn't protect the derailleur it protects the frame.
Sometime people think the replaceable derailleur hanger is to protect the derailleur. It is not, it protects the frame.
One of the potential downsides to transmission is that without a sacrificial derailleur hanger, there is more potential to damage the frame (or hub) in a crash.
Direct from SRAM its designed to protect the derailleur and the frame.
Just to clarify.
The UDH allows rotation to the rear which helps protect the derailleur, from some impacts. So yes in certain circumstances the UDH can protect the derailleur. Those impact do not damage the UDH either.
In impacts large enough to damage the UDH, the bending of the UDH primarily protects the frame. In a side impact (likely the most common) the UDH does nothing to protect the derailleur only the frame.
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance...
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance; have any of y'all? Or even heard of one?
A friend at the shop I used to work at says they're getting Transmission problems all the time (mostly imprecise setup and some have had the...
A friend at the shop I used to work at says they're getting Transmission problems all the time (mostly imprecise setup and some have had the mount start 'chewing' into the frame, but no broken stays as far as I know). Seems like it's generally better suited to a high standard of frame quality and very careful setup, two things not typically associated with most mountain bikes and their riders
I saw the chewing problem on a buddy's Stumpjumper Evo but I can tell you with certainty that it was his fault and not SRAMs. He was using an axle that "fit" but wasn't the correct one and was slightly too big and didn't torque the derailleur properly because it "stuck" when he did. So, yeah, he's an idiot who should't be touch his bike for maintenance, but that's the way it starts chewing into the frame.
Other than the slight slipping problem I have on one bike that appears to be related to a slightly off spec cassette, I have had zero problems on the 10 bikes I have installed it on and that includes two bikes that SRAM didn't list at the time of install where I just used the chain stay length to calculate the values. It far exceeds my expectations on working with a wide range of variables. If you could simply microshift at the gear level the majority of issues that most have would go away.
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance...
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance; have any of y'all? Or even heard of one?
A friend at the shop I used to work at says they're getting Transmission problems all the time (mostly imprecise setup and some have had the...
A friend at the shop I used to work at says they're getting Transmission problems all the time (mostly imprecise setup and some have had the mount start 'chewing' into the frame, but no broken stays as far as I know). Seems like it's generally better suited to a high standard of frame quality and very careful setup, two things not typically associated with most mountain bikes and their riders
I saw the chewing problem on a buddy's Stumpjumper Evo but I can tell you with certainty that it was his fault and not SRAMs. He...
I saw the chewing problem on a buddy's Stumpjumper Evo but I can tell you with certainty that it was his fault and not SRAMs. He was using an axle that "fit" but wasn't the correct one and was slightly too big and didn't torque the derailleur properly because it "stuck" when he did. So, yeah, he's an idiot who should't be touch his bike for maintenance, but that's the way it starts chewing into the frame.
Other than the slight slipping problem I have on one bike that appears to be related to a slightly off spec cassette, I have had zero problems on the 10 bikes I have installed it on and that includes two bikes that SRAM didn't list at the time of install where I just used the chain stay length to calculate the values. It far exceeds my expectations on working with a wide range of variables. If you could simply microshift at the gear level the majority of issues that most have would go away.
That's what's really annoying to me because it seems like it's a completely fixable problem via new firmware (or maybe even just a software update). Hopefully it's in the works and there isn't something stupid preventing them from implementing it.
I would love to get one once you make the measurements. DM me your venmo or something, would love to get one later on.
Ah, sneaky. No need to do a two parter on this one.
That's super neat, a great innovation! it would shield my derailleur from 80% of the strikes on the side of it
very cool I'd buy one if it's under 20$ cad @luckilycmoi on instagram
I'd buy that twice (and I don't even have an UDH compatible frame yet)
Guy is already lowballing before release lmao
https://global.honda/en/japan-mobility-show/2023/info/Honda_e-MTB_Conce…
Kinda like when a remake of a legendary movie comes out.....it's inevitably going to suck.
Great idea but not new at all. That already existed 15+ years ago and e.g. Syntace offered it for their bikes.
But isnt the UDH designed to break to save your derailleur?
lol, Vital gets more and more Pinkbike-ish. When presenting facts (like in the tire weight discussion) or prior art (here), you get downvoted.
Specialized also had them on the Demo for years.
It was already covered that this isn't a new concept, Specialized sold it as well, what is new is making for UDH so all bikes can use it.
Down get so upset
No.
Replaceable derailleur hangers are designed to break to save your frame not your derailleur.
Are we talking about the same thing here?
the UDH, is in fact a Universal Derailleur hanger, that is designed to be sacrificial.
the new SRAM transmission mounting is designed in much the same way, with replaceable/rebuildable parts.
What has been designed by @kroe can be thought to be a stiffner of sorts, that could also "shrug" off impacts, similar to what both specialized and Syntace has done in the past, but obviously not for UDH equpiied bikes, which would make his design novel in that it could be used on any bike with that uses a UDH.
Does that clear it up, or am i missing something?
Sent you a DM
The UDH is sacrificial, but it doesn't protect the derailleur it protects the frame.
Sometime people think the replaceable derailleur hanger is to protect the derailleur. It is not, it protects the frame.
One of the potential downsides to transmission is that without a sacrificial derailleur hanger, there is more potential to damage the frame (or hub) in a crash.
It's designed to rotate to hopefully move the derailleur out of the way.
Exactly, UDH rotates.
Linking the derailleur to the stiff and strong UDH axle assembly strengthens and stiffens. This could change failure modes like many bike modifications (including a full mount derailleur), but the UDH dropout will still rotate on impact like it should, and the brace does not stick out past the derailleur body (it's not a new snaggy bit).
Neat, hadn't seen that before.
UDH makes the concept more practical, since it standardizes position of the derailleur relative to the axle. Forward we regress!
This looks pretty good, but I'm left wondering how many people can stand on it?
Direct from SRAM its designed to protect the derailleur and the frame.
Remember when everyone was yelling about how we were gonna see a ton of broken chainstays due to direct mount? I haven't seen a single instance; have any of y'all? Or even heard of one?
Careful man. Unless you’re trying to trigger all the gearbox zealots on purpose…
A friend at the shop I used to work at says they're getting Transmission problems all the time (mostly imprecise setup and some have had the mount start 'chewing' into the frame, but no broken stays as far as I know). Seems like it's generally better suited to a high standard of frame quality and very careful setup, two things not typically associated with most mountain bikes and their riders
My 2 mechanic mates vouch for this, also a few of the frames aren't aligned perfectly out of the molds due to paint the thread tapping and hub facing not being perfect, so the alignment can be slightly off, and theres no quick fix, as you can just bend the hanger to align things anymore.
I'm not surprised, it's definitely *very* sensitive to alignment (and thus proper torque) issues.
I'd bet SRAM is quietly working to improve that since getting bike manufacturers to improve tolerances seems unlikely...
/derail
Just to clarify.
The UDH allows rotation to the rear which helps protect the derailleur, from some impacts. So yes in certain circumstances the UDH can protect the derailleur. Those impact do not damage the UDH either.
In impacts large enough to damage the UDH, the bending of the UDH primarily protects the frame. In a side impact (likely the most common) the UDH does nothing to protect the derailleur only the frame.
I saw the chewing problem on a buddy's Stumpjumper Evo but I can tell you with certainty that it was his fault and not SRAMs. He was using an axle that "fit" but wasn't the correct one and was slightly too big and didn't torque the derailleur properly because it "stuck" when he did. So, yeah, he's an idiot who should't be touch his bike for maintenance, but that's the way it starts chewing into the frame.
Other than the slight slipping problem I have on one bike that appears to be related to a slightly off spec cassette, I have had zero problems on the 10 bikes I have installed it on and that includes two bikes that SRAM didn't list at the time of install where I just used the chain stay length to calculate the values. It far exceeds my expectations on working with a wide range of variables. If you could simply microshift at the gear level the majority of issues that most have would go away.
That's what's really annoying to me because it seems like it's a completely fixable problem via new firmware (or maybe even just a software update). Hopefully it's in the works and there isn't something stupid preventing them from implementing it.
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