Disc Brakes, the most common mistakes you make!
ฝัง
- เผยแพร่เมื่อ 3 ส.ค. 2024
- These are the most common mistakes made with disc brakes:
Wrong type of lockring
Mismatch barb, Olive and Brake Hose,
Wrong Brake Pads,
Wrong Brake Adaptors and Bolts
I Hope this helps you get the right parts in the right place.
#bikemechanic #discbrakes #cycling - กีฬา
![เกิดใหม่ทั้งทีก็เป็นสไลม์ไปซะแล้ว ซีซั่น 3 - ตอนที่ 65 [ซับไทย]](http://i.ytimg.com/vi/4EsinscQCfs/mqdefault.jpg)
I love how there are hundreds of youtube videos on mistakes with disc brakes. Isn't that great we have something to do something that we already had, but people making so many mistakes with? That's great, now that is innovation!
Quick mention for Centerlock vs. six-bolt? People need to check their hubs before ordering.
As a mostly home mechanic I with I'd stuck with rim brakes on my new road bike after watching that. I'm getting a replacement (shorter) stem in the New Year (Orbea custom order shipped wrong) and it's going to have to be booked in with the LBS as all the hydraulic hoses are going to need trimming due to through-the-headset internal routing. What a faff!
2 things:
If its a custom order mistake you wouldn't be doing the work yourself anyway.
If it was mechanical you'd be re-doing the cables every few months due to the tight bends of the internal routing, which is much more work than the set-and-forget nature of hydraulic hosing.
How about sticking with a frame that doesn’t have headset cable routing?
I do more maintenance on my rim brakes than on my disc. That is to say, since my first disc brake frame purchase 3 years ago, I have done exactly zero minutes of maintenance. And that bike gets ridden by far the most. Once they're installed, hydraulic disc is really something you almost never need to think about, in my experience.
@@cjohnson3836 what is that smelly smell?
1st common mistake getting them in the first place 😉 aside from my trolling the video is very concise and straight to the point :) keep em coming
Haha. Rim brakes tomorrow
I learned about the lockring thing the hard way. Was forced to buy a new set of rotors just to get the right kind of lockring. What adds to the frustration is that the compatibility is affected by the combination of hubs and axle caps. It was such an unnecessary expense. Argh.
Me…
*Looks at my 4 rim brake bikes… smiles smugly.*
Tomorrow…
@@cc-000 The reason why it’s not selling might not be related to the fact it has rim brakes.
@@reginaldscot165 what is it then genius? 😅
@@mariofonseca9267 Even if I were a genius how would I know without seeing the bike? But here are some possible reasons:
He is asking a selling price that’s too high.
It’s a model of bike that is not popular.
It’s a model of bike that has a well known defect.
It’s in poor condition.
It’s dirty.
It’s got a mixed group set.
It’s an ugly colour.
It’s in disrepair.
It’s very old.
It’s got some very odd components.
He lives in a remote area.
He lives in a poor location and the bike is high end.
He lives in a location that is very upmarket where only rich people live and it’s a cheap bike.
I could go on but I think I have given enough examples. Obviously I understand he is implying that the bike won’t sell because of the rim brakes. But in my shop I have new aerodynamic disc brake bikes that also won’t sell. So is that because of the disc brakes?i
@@reginaldscot165 probably because those high end bikes are priced well above the value proposition for consumers….. And I’m no genius😜
3:49 For Formula brakes Like Cura and Cura 4, I recommend a drop of Loctite 243 on the threads, I lost a pin on the rear brake even with the clip, but the design of Cura 4 caliper hinders the pads from falling down, but if I flipped the bike over they might have fallen out. so I had to install a Shimano pin the kind you bend with pliers to keep it secure.
but I put Loctite 243 on the front.
I see some use thin tape around the pin to prevent pads from ratteling.
This video flies in the face of your other video, where you argue that there are too many SKU's with rim caliper brakes, and that if manufacturers went all in with disc brakes, shop life would be easier.
Rim brake tomorrow
That’s why we need bike shops. Rim brakes, disc brakes, whatever!!!!
Omg, instantaneous headache after 10 seconds, I cant wait till I find a nice Rim brake bike. So sick of this Disk brake madness.
Bike companies in the 2000s: hmm what next? "how about we make the brakes even more complicated then derailleur hangers and BB standards?"
@Ryan Terence Amen!!!!
Great vIdeo thanks Paul
I just upgraded the MT-200 on my new Trek Roscoe 7 to a set of Magura MT Trail sport. However after a lot of research I decided to keep the original rotors as well as the original Shimano adapters - mostly as a cost saving measure. Gotta say, though, so far it's perfectly fine despite the thinner rotors. No rubbing and a very nice lever pull as well as good stopping power - I might even stick to Shimano rotors, tbh. I completely agree to with the bolt situation, though. After seeing some frightening images on Facebook of broken screwheads I always just put a smidge of grease on those.
1:28 With current Formula brakes you can push it in with your thumb. it goes in easily. No tool required.
most common disc brake mistake is having a bike with disc brakes
It’s very common these days. All the cool kids are doing it
I saw a you tube channel which made a good point. Thousand dollars worth of cars and their discs dont rub. once set and its good but a bike that costs as much as a car will eventually sing the high pitched ping ping of a disc. Hahaha. Keep it up! Such a huge amount of joy when I ride with my buddies.
Umm. I think you just don’t hear it over all the other noise.
@@Mapdec 🤣🤣🤣
the main common mistake is actually buying them [for your road bike]: not only you will solve a problem you mostly likely don't really have, but you'll open a number of cans of worms that you never would have otherwise
Bless you. You ok?
@@Mapdec doing great, how about you :D?
@@cc-000 I've driven a Ferrari 458 Speciale on a race track once. Its ceramic brakes were stunning, especially compared to those of my everyday Dacia. Yet my Dacia's brakes aren't any more scary or dangerous for everyday driving, nor do I want to upgrade them to the brakes the Ferrari had.
@@ryanterence471 I am more than happy driving a car "from the 70s" and I'd much rather spend my money on holidays and on experiences in general than on a better car. Including a couple of laps of my nearest circuit in a proper supercar every now and then.
Same goes for my bike. I'd much rather spend a couple grand every year on cycling holidays in the mountains, that I'm more than happy to descend using rim brakes "from the 70s".
Uncommon one, but seen it, a kid had a front brake with constant brake rub, the cause was incorrectly assembled hub, so the whole wheel was off centre, so hub was off centre so was the rotor. I looked at it, but I could not get that to work, there was no more room to adjust the caliper, so not even as a temporary fix. buy atleast the kid got some free advice from me. 😁
I don't know if it was done in the factory or previous owner or him or the shop. It was a cup and cone hub. But there can be various amount of spacers anf nut sizes so all has to be on the correct side, or wheel will be off-centre so always a good idea to take pictures and lay the parts in order and on each side.
Ok, so get the right lenght bolt, just Googled the fixing bolt C2 for Ultegra 19mm long. NONE for sale in the US.
Wow.
Known quite a few riders to find their flat mount pad pins seized in and then chew up the slot head on the pin. Obviously some copper slip or similar on the pin thread helps but I’ve replaced all of mine with what I think is a mtb version which has a socket head for Allen key instead of screwdriver. Pin is slightly longer but works just fine 👍
Yup, XT ones fit, but on one bike in my house the spring clip then needs to be fitted other way round or it tings on the spokes
😳
I have absolutely no idea why they went for a slot head on the road calipers. Maybe to keep people from overtightening it but when it seizes you’re screwed..
Oh tell me about it, I've never seen anybody apply anti-seize on these bolts. They all install them bone dry.
Better Bolts sells one that uses a 3 mm hex interface and is made out of a titanium alloy. Maybe I'd buy this for my groupset if I'm cheeky.
Shimano Y8JZ98010 the retaining clip is bent over 90 degrees, can be fitted so this is inboard without any problems 👍
This would of been the video to show how bad some disc brake flat mounts are out of spec and have one of your guys show how you use the surfacing tool. Yes I know Park has a video but that one’s pretty sterile and over produced. I’d like to see one done in the wild, and any problems you run into during the process.
We can do that next time we get a job like that in. Custom build season is almost upon us.
Regarding the rotor lockrings, I thought the higher end came with the smaller ring that uses the cassette tool and cheaper rotors came with the bulky lock ring. That's what I've experienced anyway. Is there any proper reason for using one or the other? Because I just use the smaller sleeker ones
The larger ones can interfere with some frame mounts.
I love the crazy different parts for hydro disc. The multiple kinds of hose and fitting even for the common ones makes me so happy with my Paul's klampers every time I see this. The brakes are on a bike that needs reliability that a hydro setup can't provide.
The Growtac brakes are on my radar for another build. I love buying from non giant companies that pay living wages in non third world countries it is worth the money compared to the big two.
Don't overtighten the hose connection into the lever, the lever body is plastic and it will crack, mechanical/hydo levers are hard to get hold of too.
That’s a good one too b
Two of my ex-colleagues have cracked the ones they worked on before, I think one of them accidentally added a second olive without recalling there's already one inside the STI lever due to him rushing the job (served him right for trying to rush).
Fortunately, I've never cracked one and I plan to keep it that way.
@@yonglingng5640 I’ve seen this before. He would have been pulling hard on that spanner to get the flat face nut to touch, rather than going by torque.
@@Mapdec My ex-colleagues never use a torque wrench for that bit. There are two 3/8-inch drive 8 mm crow feet at my old workplace, but they never seem to use it. I did use it once out of curiosity to see how it works.
Most of the time, I do tighten the nut till it just bottoms out at the STI lever, which is theoretically incorrect since the torque spec of 5 Nm would've been achieved before this happens, but fortunately, I cracked none. I guess the olive still allowed for some more compression since it's made out of a soft metal.
Maybe I should go buy a 1/4-inch 8 mm crow foot? 🤔
You know it’s the right thing to do. Be a pro.
I remember a video you made a while ago which mentioned sram HRD levers being slow to return and the cause and fix for that and I can't seem to find that video anywhere!
A restriction. Either a kink in hose or stealth a majig not fitted correctly. Sometimes it’s just not tight enough.
Can you tell what type of shimano brake hose you have based on the color of the barb (silver vs. brass)?
Don’t rely on what you see. Check
The most common home mechanic mistake I see is adjusting the caliper without making sure both sides move evenly. Then they get the metallic rubbing sound from the caliper, and give up.
Most common "pro" mechanic mistake, not using a bleed block, not pushing the pistons back, and overbleeding the brakes.
Very true!
What is your opinion on EBC brake pads? I have been using the ones Merlin sell (performance seems ok) but they seem to leave rusty stains on the rotors if it's been damp outside... The Green pads are supposed to be resin and I've never seen this from Shimano pads??
Interesting. I have not seen that
Work great for cars have used may different ones. Infact it is all I buy for my car. I would assume that they know a thing or two about pads they are go to pads for race cars.
I will definitely be trying some
@@dylangrantz8124 Back in the late 80's that's the brand I used for my Yamaha RD350YPVS when I was a loon(atic...!) and they were superb then, just wondering what others experience of them on push bikes is now...??
The biggest mistake I see (even from pro mechanics working on world tour bikes) is washing a disc brake bike the way you would a rim brake bike. Flicking contaminated degreaser all over your rotors while degreasing your chain will make them squeal like crazy. Easy to avoid. Just need to adjust the cleaning process a little.
a slightly better aim, some protection...
Replace the locking pin of the brake pads with a j-bend spoke. Bend it over to lock it in and it won't fall out, but simple pliers to remove.
We don’t do hacks Galen. Go an sit in the corner and think about what you just said 😂.
Shake, rattle and roll
What do you think about carbon fibre rotors? 😜 Some say they pads don't bite well on them. I've not tried them.
Got a customer using them for TT. Seem ok, remarkably durable, chainrings are Carbon too.
@@Mapdec Good to know. Does the customer sand the rotor down? How long to they last? I am just curious. I run 223mm Trickstuff Dächle rotors on my enduro bike. Got them second hand for half of retail.It's steel made in Germany.
What about Campy brakes?
What about them? They have just the same own hoses, olives etc.
@@Mapdec olives? Too funny. The best bike mechanic across the Atlantic…And he has a sense of humor too?!?!
Disc brakes ate my hamster!!
Freddie Star set them up
I guess nobody gets wrong the rim brakes
Tomorrow….
Well the you purchased a disc brake road bike that's your mistake LOL
Oh Jared. You’re hurting dude. Do you need a hug?
@Mapdec Cycle Works LOL. I just can't wait for the industry to make a U Turn like they did with PF BBs. This LADY IS FOR TURNING!!!!
@@jaredfontaine2002 the fact that the bicycle industry cannot mass produce a decent pf bb standard and had to revert back to an ancient british standard , should be a huge embarrassment to the bicycle industry ,
@Andy the bike industry is just ripping people off. The main reason road bikes have disc brakes is to force us to buy more bikes. Disc brakes are More maintenance, heavier, and more expensive. The customer loses.
@@jaredfontaine2002 I didn't comment on brakes, I just commented on the bicycle industries inability to manufacture frames to a tolerance acceptable to fit a pressfit bb
The most common mistake with disc brakes is using separate disc instead of the rim itself.