Rotate the handlebar down until the hoods are horizontal when you tilt the bike to bleed the rear caliper.

On comment I saw about the Hope calipers is that the pistons are a bit more brittle than Shimano pistons. Not big deal when riding, but people who use a screw driver to push their Shimano pistons back when getting new pads are said to have cracked their pistons when trying the same thing with the Hope caliper. Don't know how Sram pistons compare here.

There is less pad clearance on the RX4 compared to Shimano and SRAM, I had difficulty setting them up, getting equal piston travel, centering and still have a slight running contact on the front disc (in context setting up a twin caliper, twin hose double banjo brake on a motorbike was about the same level of difficulty). Four pistons may be useful for gravel riders but really a two piston would have enough performance for road bikes - Hope already do the X2 for MTB with 22mm pistons (Shimano use 22mm on many of theirs) so I'd like to see them transfer this arrangement to a flat mount road option. I'd guess it would garner a lot of interest as it's similar to existing road calipers and likely easier to set up - road riders have zero allowance for pad rub and like things that are easy to set up - seems like a no-brainer to me. For my winter/general use bike if I'd known I was going to have so many issues with the RX4 I'd have fitted post mount adapters and a pair of X2 calipers instead; these would have worked fine as the piston ratios would be the same as the leaking Shimano calipers I had to replace. Update - having posted I actually then found Hope do make a flat mount X2 - I'm an idiot!

hope 4 piston fm brakecaliper with integreated 140/160 adapter all cnc ist just so much more bikeporn than big brand S mainstream stuff

TBH,i had mono m4 on my mtb few years ago and didn’t notice any additional power comparing to 2 piston xtr for example

Ronald thanks for the update. I never knew something like this existed. I went ahead with the purchase for a Shimano Ultegra di2 system and it turned out quite well. The issue with Shimano is that disc brakes are a bit more temperature sensible and that is mostly because of the mineral oil that they are using (after a wet ride there is a possibility that water enters the system and that remains at the lowest point ie. close to the brake pad) SRAM does a better job with the DOT5.1 liquid. I agree is no point in upgrading a SRAM system unless you really break more than necessary. My experience so far with Shimano is: 1) compared to a Shimano system they run a lot cooler 2) coupled with the Galfer brake pads you have a range of situations covered (wet, competition - no need to run in, gravel - muddy) 3) the rubbing after a long descent is shorter almost unnoticeable - mostly due to the lower temperature and better piston design Really happy with my purchase and have to say they look way cooler than a Shimano system.

Thank you for this video. I was getting crazy with my sram calipers. I spent so many hours trying to center them but it always seem like the clearance is too small everytime. I think i'm going to upgrade to get rid of this headacha!

@ronykuba

Жыл бұрын

after some more time, these don´t really look like a great choice either.

Hi Ronald You mentioned at time 8:30min that hope disc calipers has lesser clearance than sram red 2 disc calipers. May i know how is sram red 1 disc calipers vs sram red 2 disc calipers? Should i upgrade? Thank you.

At the start of the video, I got my Hope up, no pun intend when you said greater clearance. My front sram force axs from the outset has been rubbing a little. While the pads have worn out and reduced that rub, it would have been nice to see these rx4 do that trick..... Back to the drawing board

@ronykuba

4 жыл бұрын

The 2 piece calipers have plenty of clearance when properly set up, so I'd look into that

@skaramanga007

4 жыл бұрын

Ronald Kuba i have had the same problem with the original calipers , havent seen any reviews or videos about the new 2 piece calipers , have you installed / seen them? Will they get rid of the brake rub is the question..

@ronykuba

4 жыл бұрын

@@skaramanga007 yes

@skaramanga007

4 жыл бұрын

Ronald Kuba doing a video on it?

@skaramanga007

4 жыл бұрын

Ronald Kuba where did you get your from , apart from the USA finding difficult to source

So nice!

Does the newer 2 piece design for red Axs caliper have less of a rubbing problem? I'm currently on 11 speed etap and that hrd caliper is a pain

@ronykuba

3 жыл бұрын

absolutely, much more clearance

Great stuff Ronnie 👍. Why don't go initially for new Sram 2 piece calipers...

@ronykuba

4 жыл бұрын

They weren't available, and I didn't have a video like this to watch...

Shimano brakes have same issue with climbing and sprinting too.

Hi, a complete other question. I'm swapping from 3T aeronova to Aerofly 2 on my S-works Tarmac, both have internal cable routing. Do I have to re-bleed the system to do this, or can I just disconnect the brake hose to route it to the new handlebars?

@kennethstreet7868

3 жыл бұрын

Easily if you have leak free connectors.

Maybe giving the messy bleeding process would be useful.

I thought I was going to be first to do this, I don't see what issue people have with clearance, also from sound was spokes hitting it?

Did you have to fit any adapters/mounts with the RX4+? I'm looking to fit some to my gravel bike and even Hope admitted their fitment chart can be confusing. In the rear I have two options, RX4+ flat mount with a mounting bracket or the RX4+ +20 that you used without a mount. Another good video, although I won't be looking forward to bleeding rear brake!

@ronykuba

2 жыл бұрын

no

@johnwatts1356

2 жыл бұрын

@@ronykuba thank you.

Ok I was going to buy this, but not now. Just wondering if my Rival 1 levers would fit the new 2 piece Sram callipers?

@ronykuba

3 жыл бұрын

Yes

Hey, I'm about to install rx4 calipers on 11 speed etap group. What hose did you use? The etap hrd uses a specific banjo to connect to the calipers. To install the hope caliper you would have to cut off the banjo from the end of the sram hose. But the sram hoses are expensive and I'd rather keep the banjo on so I can re-use them on another bike. Did you just buy another set of etap hrd hoses and cut the banjo off? or use a length of 'standard' hose?

@ronykuba

3 жыл бұрын

I think I have used hoses for the newer 2-piece caliper, which has no banjo

Hi, i have sram red axs with standart rotors as on your on venge. and im curious, can i replace them with campy or shimano? not sure which are better in terms of perfomance.

@ronykuba

3 жыл бұрын

Any rotor will work

Just blew out my rear Grx 810 caliper going down a hill at 35 mph. Wish anyone had these in stock. I'm going to need more stopping power.

@whichdoctor4858

3 жыл бұрын

Bigger discs? If you’re using 140mm, swap to 160mm if you already haven’t.

@Ronald Kuba hey what disc brake size you got i gave the 160 on specialized diverge comp 2020 and on front the caliper is not plug and play , i had to put 180 on both front and rear .

@ronykuba

2 жыл бұрын

160

@iareniku

2 жыл бұрын

@@ronykuba on Specialized diverge comp carbon i had to fit 180 front and back :(

What camera do you use to shoot your videos Ronie?

@ronykuba

4 жыл бұрын

Hero 8

interested in the actual fitting of the rx4 to existing hose and bleeding, I found your vid disappointing. show stuff on the table---fast fwd----show finished product.

@ronykuba

3 жыл бұрын

This is all I had time for

I actually swapped my bikes to the hope rotors and calipers a while before they had the road dedicated ones. What I found was they had way more bite, and more modulation, but since they're floating rotors they do rub a bit more when getting out of the saddle. Might be interesting to try standard rotors with their calipers.

@vladandrei2069

3 жыл бұрын

Try magura 160 mm anydisc will do but the thicker one and heavy , will do the job very well.

@jaspreetsidhu5708

3 жыл бұрын

@@vladandrei2069 i ended up solving the problem. Used an alignment too and it fixed everything. No run at all even under hard turns/braking.

Why did the Hope brakes squeak and tweet constantly? How do I get them to brake quietly?

@ronykuba

3 ай бұрын

There can be many reasons, hard to tell without seeing it

good move

@MrJohnnyTN

4 жыл бұрын

but I use It for gravel

I keep seeing you on Zwift

Is there a weight saving switching to hope calipers?

@ronykuba

4 жыл бұрын

No

@anderslagerqvist4287

4 жыл бұрын

Yes there is, its lighter. (According to specs?)

Can Dura-Ace rotors work with SRAM calipers 🤔

@ronykuba

3 жыл бұрын

Yes

@Cycling_in_ja

3 жыл бұрын

Ronald Kuba thanks 👊🏽

I have 2 bikes with Shimano groupsets, R9170 and R8070, and the one thing I never complained about is the brakes; mineral oil, easy to bleed, pad clearance is more than enough and the rotors are good. The only reason why Shimano isn't perfect these days is that it's not wireless like Sram's Etap. As for these 4 pistons calipers, I hope this client of yours will have plenty of braking power.

@TheAntoine191

4 жыл бұрын

I'm not sure that wireless thing is a true upgrade. Di2 routing is easy because cables can take tight bend and fit in small holes. It takes a bit more time to build but then you forget it whereas on a wireless system you have the multiple batteries to maintain/change. On top of that sram really messed up by insisting with those dumb 10 tooths cogs. Great for MTB not so much for road where efficiency in a big gear matters. Think about it wireless makes sense when distance are varying randomly, on a fixed setup like a car plane bike whatever where a cable is set and forget what is the upside of wireless ?

@mikicastan

4 жыл бұрын

Antoine Martin My toughts also. Wires are not drawback at all

@lechprotean

4 жыл бұрын

@@TheAntoine191 agreed - wired is more reliable communication, but wireless could potentially save weight (not really true atm) and simplify things a lot. If you had a dedicated frameset for wireless, you could skip the holes and channels for cable routing. Personally I'b biased towards Di2 as well.

Anyone seriously looking to upgrade, trash the SRAM group and go with Shimano Dura-Ace. That's what I did and I'm so much happier now. I have the 9170 hydraulics group and zero brake rub, even better modulation when stopping.

@mikicastan

4 жыл бұрын

Wasupwitdat1 Mofiki I did it also!

@KuriReevel

4 жыл бұрын

Or even better - go Campagnolo.

@ronykuba

4 жыл бұрын

You know, there are people who can actually fix stuff.

@wasupwitdat1mofiki94

4 жыл бұрын

@@ronykuba SRAM's poor engineering is a commonly known fact. What you can take away from my original comment is that I did fix the problem with SRAM by going to Shimano, problem solved so I guess I am one of those people.

@ronykuba

4 жыл бұрын

@@wasupwitdat1mofiki94 not really

Can you please make your content inclusive and accessible to everyone by formatting the auto captioning into closed captioning please? it is very hard to enjoy your content relying on only the auto captioning sadly (I'm Profoundly Deaf)

Ronald you should try paul component klamper.

What brake hose did u replace it with

@ronykuba

Жыл бұрын

What do you mean?

@dominicscotland

Жыл бұрын

@@ronykuba any specific brand hose did u replace after you cut it

@ronykuba

Жыл бұрын

@@dominicscotland only a Sram hose will fit to a Sram lever

@mlee6050

Жыл бұрын

Isn't it like the axs that use any as got the adaptor so can use the thread and olive each end?

Go to go rim brake no rub lighter and cheaper...

@ronykuba

4 жыл бұрын

And worse

@umutbirey101

4 жыл бұрын

@@ronykuba dont need better, its good enough

@currymasterrace7153

4 жыл бұрын

@@umutbirey101 for you...

if you have problems with rubbing discs, go rim

@ronykuba

4 жыл бұрын

Yeah because rim brakes never rub...

@johnhospod5202

2 ай бұрын

That's good if you don't care about braking.

what an effort.Pay 3000 Eur for a grupset then it rubs.

@ronykuba

4 жыл бұрын

Not really a groupset thing

@umutbirey101

4 жыл бұрын

@@ronykuba yeah but its integral part

So the bike has questionnable SRAM disc brakes but I noticed a decal on the seat stays saying "Shimano"? Anyway, thanks for sharing! (Now I'm glad I have Shimano disc brakes both on my road and tri bike)

@ronykuba

4 жыл бұрын

It's a Venge Bora frame

these are the worst calipers in the market. their warranty support is non existing. the US reps do absolutely nothing for the customers. i have struggled with sticky pistons for over 2 years. you need to clean the calipers every other week and i am talking about road use. i was dumb enough to buy the new RX4+ AND THEY ARE JUST THE SAME. save your money!!! stay with SRAM or shimano calipers.

@ronykuba

2 жыл бұрын

I was not impressed either