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
Cause better brakes than Shimano is the answer, there’s not much to do there to fix those issues
I imagine that some companies could be scared of the repercussions if your brakes fail because of your (the company’s) recommendation. It’s all fun and games if you tinker around but if someone goes off a cliff with your „hack“…
That’s just what would concern me, if I was offering „braketuning“
what should i use instead of the silicone lube for piston massage?
Nothing
I apologize that this is a double post! Most folks only look at this thread in regards to brakes info but figured I would put it over here too and hope you may go over to the thread I just created and leave some feedback. Thanks!
"Alright I know this one has been hit hard and in pieces and in different places over time. Trying to consolidate to one spot and get feedback. I have someone that isn't a part of the Vital Forums asking me questions and advice so figured I would just lay this one out for feedback to forward to them directly for helping make a decision.
Simply put a T4V4 with bearing mod vs GR4. For the folks that have actual experience with both/ possibly own both... would greatly value your feedback.
Notes they have heard
- GR4 significantly easier/cleaner to bleed
-T4V4 has slightly lighter lever throw
-GR4 with power levers can allow for best use of close to bar set up
-GR4 might have improved the classic Hope noises?
I will edit and add if I remember more for them. But in the meantime... appreciate the feedback!"
https://www.vitalmtb.com/forums/hub/hope-t4v4-bearing-mod-vs-gr4
Also.... for myself now
Anyone have any inside info on release date ballpark for Brembos. Brembo keeps on teasin and sure am excited to learn more about em finally
Knowing Brembo I'm sure they will come with a premium price tag, I wouldn't be surprised if a set would cost $999. I was lucky enough to run into a Specialized athlete at Whistler last season and got to feel the brakes myself. They feel pretty good and have a firm bite point but curious how that will translate on trail along with power/piston size layout.
Are they built for comfort or speed?
Hopefully they release along side the new demo. Id love to try a set. But going way back to when specialized first brought the ohlins shock in on the demo, you couldnt buy the shock alone for good while. It was oem only for however long. At least thats how I remember it could be wrong.
I use SRAM dot grease, but as others have reported in this thread whether any lube is needed is questionable.
If you didn't already, then centering the rotor and pads is also important. There was a hope video that showed using a small screwdriver behind the pad that needs to be moved closer to the disc whilst pumping the brake. I find this works really well and makes sure that the pads contact the rotor at the same time on both sides.
seeing them in the wild had to have been rad! glad they felt like a nice firm bite point.
I think they should be some of the most powerful yet and very adjustable
No doubt the price will hurt but all we can hope for is performance more than making up for it
I am with you and hope that release is soon. And they can be bought separately right away
You know they work great!!
They slowed Loic down enough that Jackson went flying by, unable to stop with his barely functional Shimano prototypes!!!
Serious question: how is everyone putting the pistons back in place after extending them during a piston massage?
I'm using an old yellow plastic tire lever and doing the pistons one at a time (more or less), just like SRAM recommends, but that feels barbaric and incredibly imprecise, and seems like a great way to sideload or accidentally angle a piston into the caliper seal. Is anyone messing around with a piston reset tool like one of these. And yes, I recognize that two out of these three tools would not work in a Maven because there's no access to the top of the caliper:
This birzman getup seems cool.
https://www.tradeinn.com/bikeinn/en/birzman-double-disc-brake-piston-pusher/138156761/p
Its still sitting in the 'I probably don't need that, but I want it basket'
In my mt7 I was using a 5mm Allen to push from top and bottom
Mavens are a pain due to the design which is very close, and like codes and all sram stuff they go sideways badly if not carefully handled also because they hardly move
Trp and hope I use my fingers to push them back as they go so smooth but I use a Schwalbe Tyre lever occasionally to be quicker as it’s wider and flat
Shimano, the less I touch them the better, those pistons give up incredibly easy no matter what, so I don’t touch them if not pushing them back with some old pads or veeeery carefully
Oh yeah, that thing is sweet. Didn't know it existed but now I need to have it.
Check this out first: https://escapecollective.com/new-tools-day-2-its-a-good-time-to-be-a-to…
3/3 of those don't work on Mavens. I tried the Birzman version of the bottom one and it just bent, plus it had a hard time getting the rear pistons due to the notch in caliper.
I start by pushing the pistons back (pads in) with the fat side of the pad spacer, then remove pads and use the red plastic SRAM double slider tool (with rounded end) to fully seat them back. It's too thick to fit without that initial nudge, but it ultimately does fully push back the pistons.
This does it for me but working from the bottom is always a challenge no matter what.
If I'm worried about alignment I throw the pads back in before pressing them out. I use the Birzman piston press (just the lever one) and haven't run into issues. If I'm doing one piston at a time, I choke up on the grip and push flat instead of levering the pistons out.
https://www.birzman.com/products_2.php?uID=2&cID=4&Key=135
Beaut Bike Mini Bicycle Disc Brake Piston Press – Beaut Bike Australia
Finally got some mavens! They came with resin pads.
How much truth is there to the "don't mix pad compounds on the same rotor" theory.
I know Sram even posts that on their site regarding Mavens. I'd like to try these bad boys as is but will likely switch to metallic when I can get a pair of pads.
I mixed it up many times. Never had any problems going from organic to metal.
Depends on the brand. I have tried going from trp organic (blue pad backers) to shimano metallic pads and that did not work so well. I have had good luck going from sram organic to sram metallic, but not 100% success on that process over the years and did have one rotor that would brake fine, but never stopped making noise.
I've had decent luck provided I do a couple rounds of sanding the rotor with fine grit sandpaper followed by rinsing with isopropyl alcohol.
From an engineering side, a lot. The particulate that gets embedded in the rotors during burnish/bed in between different pad compounds is different in size, resulting in a decrease in friction between the pads and rotor and a weaker brake. I've seen dyno tests proving that.
From a functional side, I've swapped pad compounds on the same rotors on my road-ish bike. Was there a decrease in pucker power? First set, not really, 4th set yes. After I accounted for all mea culpas I could, I swapped to fresh rotors and the brake power well improved. My hunch is that this was due to now 3 different compounds having been bedded into the old rotors (last set of pads were bought outta necessity so I took the available option).
So in absolute terms, can you? Yes. Should you? That's a personal value call but recognize you lose your right to gripe about the brakes not being strong enough should you go that route. Personally, I think rotors are priced well enough that there really isn't much of a reason to not have dedicated semi and sintered sets should you want to experiment.
I finally got the mavens mounted and went for a ride today. Figured I'd share my experience as everyone here's been pretty helpful.
I got a pair of the older Maven Silver on Pinkbike
Holy shit these things are amazing!
I've been a bit on the fence but finally decided to pull the. Been using Hayes dominions for the last 1-2 years and they're great but the Mavens just feel like a completely other level of control and power.
In the past I've also used TRP dhr and before that code rsc.
I'm only one ride in on these but so far no issues. I felt like they were pretty intuitive to get used to.
For more context, I'm about 165 and ride a V2 sentinel. I live in Seattle and ride mostly off the i90 corridor here. Our trails are decently steep and I do some Enduro racing.
So many reviews had me a bit nervous about the power being too much, which tbh I wanted to experience. They're definitely way stronger than any other brake I've tried but definitely felt manageable.
I'm also running 200mm Hs2 rotors front and rear.
They came with the organic pads and I figured I might as well use em but will probably switch to metallic when I wear these out. Curious how long that might be.
Anyhow, put me in the Maven camp and let me know if you have any questions!
I've honestly been pretty thrilled with my Hope Evo GR4 brakes. Paired with the Galfer ebike pads and TRP RS05E 2.3mm rotors and offer tons of stopping power and lots of modulation. I'm about 205-210lb geared up and they have no problem stopping my fat ass on my ebike. Once I get my dh bike back together I'm gonna pair the new Lewis AX lever with the maven caliper and see if that offers a little more stopping power. Don't see a reason to go back to the stock maven lever at this point, maybe they'd be improved with that new swing link upgrade. Really the only brake left on my 'to test' list is the Radic Kaha but these hopes and Intend trinity's are my favorites to date.
Little off topic but curious regarding the suspensions
Intend shock but not the fork?
Post a reply to: Nerding out on Brakes shall we? Not another tech deraliment