Hello Vital MTB Visitor,
We’re conducting a survey and would appreciate your input. Your answers will help Vital and the MTB industry better understand what riders like you want. Survey results will be used to recognize top brands. Make your voice heard!
Five lucky people will be selected at random to win a Vital MTB t-shirt.
Thanks in advance,
The Vital MTB Crew
I really think the industry could use another billet stem ngl
But there is nothing with UDH, there you modify the frame to fit a SRAM component...what's the issue with the patent?? isnt?
It would be pretty hard to adapt to the direct mount/UDH standard without getting uncomfortably close to SRAM's patented designs. You may prevail, but can you afford the legal cost and time to find out for such a low volume product?
I have a set of design sketches I worked up somewhat peripheral to this idea (being deliberately vague, here). It was a fun design exercise, but I bailed on the concept as the upside wasn't worth the risk of if SRAM's attorneys didn't like what I was doing.
I mean, i'll admit it - I am dumb as a rock. But could literally a cnc machined spacer, and a thru axle adapter infringe on their patent? I am sure it can, but it sounds strange.
And it essentially makes it so sram themselves potentially sell more transmission groupsets. Would be more logical if the C&D came from spesh/yeti instead
I think the main thing is to never ever underestimate the capacity of Copyright lawyers to be an asshole about something.
I mean, I guess you're right about that.
Its not the first time i've seen companies bring legal action to something absolutely trivial. Something that often in the case of an end user, gives easier entry to a product, or solves a problem.
But I know some companies are very protective of anything touching their IP, so this could be one of these cases.
Word on the street the full production Specialized DH vessel is ready. Apparently it's a looker.
so release in 2027 when they finally got rid of their demo stock? :D
So SRAM is taking the UDH success to brakes...?
Patent Center
File this under: Things I do not hate!
I know its not holistically for altruistic reasons SRAM is coming out with standards like UDH and UBH, but these standards make things so much easier to deal with from the consumer side. Bend a UDH hanger? Go into any bike shop. Want to swap between 180 and 200 rotors? Buy a different UBH. The idea of not having to deal with a frame's terrible brake post alignment, or even having to do the "post adaptor math" is a net win in my book.
Kudos for SRAM for doing this!
Looking forward to their new mineral oil brakes in the future as well! 😉
What does #422 mount to?
Looks to me like 424 goes through 428 and then thread into either the frame or a set of removable threads in the frame in location 426. That is how they plan to mount the front end of the mount to the bike.
Yeah and probably some spherical stuff going on with 428 to account for misalignment of that hole in the frame.
Thats how I read it as well, then the mount has a pinch bolt to clamp over that big post. Everyone stating this solves "complex" brake post alignment issues, the distance/angle between 400 and 426 will be very critical.
UDH solved the issue of every bike having different and expensive hangers, we already have a universal brake mount its called posts and slotted holes on the caliper, its literally as universal as it gets you can adjust it and add spacers for different disc sizes and adjust for alignment issues.
is swapping the postmount adapter when you size up a disc so much hassle? this seems even more complicated as you need to remove the rear wheel just to swap out the ubh. what am i missing here?
426?
The problem is that the current "standard" of just a couple posts in the frame leaves much to be desired in terms of accuracy and convenience. Not to mention it's not an easily replaced part. If someone hamfists the threads on their brake posts then they could be in for an expensive repair. Just because we currently have something doesn't make it "good" and it's completely backwards compatible like UDH. I only see this new standard as a positive.
There's also the benefit of (potentially) not needing to realign calipers all the effing time for every minor brake related job.
As someone who owns a bike with a direct brake post adaptor already, I am glad to see MORE companies head that way.
I can't wait to see what they've done with it. That UBB link has got to be difficult to make it look good. Not that the prototype is ugly, but it's certainly an acquired taste.
Don't you need to remove the rear wheel anyways to swap rotors?
I do agree with that positive is that if you strip your threads on your posts than you can easily replace them but I dont know if thats a HUGE issue but is a plus for this design.
Also neither this or UDH is backwards compatible the frames have to be designed around them.
By backwards compatible I mean:
You can still use your old derailleur and brakes with UDH/UBH equipped bikes.
Would this not limit frame designs from having a pivot between 400 and 426. Take the inverted 4 bar designs of a Forbidden Dreadnought for example. In a design like that isn't the distance between 400, and 426 going to change and not work with this?
Just read through the patent a bit, down on page five of the written portion it is stated that
"When assembled, the bracket bolt 424 extends through the second opening 422 and is screwed into a threaded opening 426 in the left seatstay 208."
It then goes on to say how 428 is an optional part that is meant to increase contact/strength between the stay and the mounting bracket.
Leaves me curious as to how strong this could be compared to a standard post mount on a carbon frame.
I remember being told when the Druid V2 came out that Forbidden is already using this standard and that looks to be accurate.
Just mount it to the chainstay if the link is on the seatstay. No issues there.
From RedBurn Design on IG
The Forbidden one is not a Sram product, it's their own design. Similar in appearance, but not the same. Lots of companies make a bolt-on mount like this.
I'd be stoked to see a UBM, UDH is one of the best "standards" in a long time. Misaligned shitty post mounts that aren't replaceable need to die. I want to be able to replace my hanger, brake mount, BB, headset, bearings etc at any bike shop.
Sort of removes the U from UBH if you need to have different configurations for seat stay mounting and chain stay mounting. As Johnathan mentioned as long as 400 and 426 stay on the same member you can still have a pivot on the seat stay.
Machining the two posts flat and perpendicular to the axle plus the threads is complicated.
Who said they have to be different? The beauty of it being mounted concentric to the axle is that you can spin it around.