How To Recondition Road Bike Caliper Brakes
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- Опубликовано: 25 дек 2016
- Save money and save your brakes! Those tired brakes aren't ready to be thrown away. Find out how to get them working smoothly.
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Our step by step instructions help you easily give your road bike brakes a new lease of life.
Some basic mechanical skills are required and some allen keys / wrenches and a few spanners depending on the brand of brake you are working on.
GCN will have your bike up and running in perfect condition in no time at all.
Watch more on GCN...
How To Refurbish A Rear Derailleur 📹 gcn.eu/2hlSTiJ
How To Improve The Performance Of Your Brakes 📹 gcn.eu/2gX6b4x
Photos: © Bettiniphoto / www.bettiniphoto.net/ & ©Tim De Waele / www.tdwsport.com
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Smoothing out the grooves where the spring rides is important, also. Gunk and wear can cause one side to lag behind. This is especially true on single pivot calipers.
The GCN garage has been turned into a Parktool sponsored heaven for mechanics. I like it, it makes the video look more professional. Although Si makes it look as professional as a kid hitting a bike with a screwdriver(which is a crime against cycling!).
We need Calvin Jones!
For anyone struggling with installing spring back:
I have installed mine without using *any* force, by simply unscrewing second arm. Simply put spring in and install second arm after.
Finding this channel when I decided to get into road biking was a great thing! From a functional point of view, older quality parts will work as well as new stuff, except you won't have to follow the unfortunate today's mentality of replacing stuff that only needs some maintenance. This is also great news for broke blokes like me, who can't afford to buy a proper bike and so put one together from salvaged parts off the internet instead; these older components work perfectly after a clean-up and lubrication, yet sell for literal bargains. With some elbow grease, you can put together a bike that serves its purpose and works properly.
Oh, another tip to remove corrosion, use wire wool - on decent metal surfaces (even aluminium) it give a lovely smooth surface, no significant scratching you’d need to worry about.
I love how you've put the degreaser in the magnetic screw plate.
It's so funny seeing the packing tape still on that used brake! Thousands of miles with that piece of grey tape hitching a ride!
So many nice tools in a lovely workshop when all you need is 'clean and regrease'
I always photo anything I’m dismantling - getting springs back in the right orientation, wires in the riht places etc can really slow you down if you have to work it out. Refer back to a pic on your phone, and its easy.
Si, for the pivot you couldn't disassemble, you could've used a motorcycle chain lube such as PJ1. They spray on really thin and work into 'out of reach' areas - as the solvent evaporates, it leaves a nice layer of grease on the working parts.
Love these reconditioning videos. Man how I wish my old always-kept-outdoors-mountain bike didn't get stolen. That would have been an awesome project.
Thanks for this. It gave me the guidance for detaching the short spring-holding arm of a 15-year-old Campag Centaur brake that had seized. Working perfectly again in a few minutes. Tools needed: Allen/hex heads in 2 mm, 3 mm and 4 mm; 10 mm and 13 mm spanners for the hex nuts. £40+ pounds saved on a new pair of Potenzas!
The "13mm" nut on these Shimano brakes is 14mm on old Modolo Corsa brakes. And I believe Camapagnolo also used 14mm back in the day. Just thought to add this in case anyone is having troubles
Loving these renovation videos. Really useful thanks guys!
Absolutely love these how to recon parts videos. Si's now an ex rider turning future pro mechanic!
Awesome stuff! I fixed my rear calliper in situ (too lazy to cut the cable!) and it's now back to smooth health :)
Good video, helped me to fix the spring. Cheers.
Thanks for sharing the tips guys !
Thank you for this instruction video. My brakes were getting stiff and this video gave me the confidence to disassemble, clean, and re-tune them back to perfect condition. Like new at no cost! Also, that can of WD40 came to good use. Kudos
Thank you for this one - never knew it was even possible and now I've just brought my winter bike back to life just for a few minutes of time, and so easy too
Love these in depth maintenance videos
Love this series!
This is a very good winter project!
These maintenance videos are great!
Great video. Helped me free up my rear caliper. Ended up taking only one arm off and using alot of Gt85 plus a rag and elbow grease. Works great now.
Thanks for this. Followed and saved a seized brake & some money.
Great info. My 2009 Giant Defy needs this overhaul. Thanks!
Love this new weekly gunk watch feature.
thank you so much! Worked like a charm
I do this at the end of my summer season and I also use silicon spray. Works a treat :-)
Mounting the brake on a frame makes the re-springing easy as pie. It's more difficult on newer calipers, so if you're having a bad time, try it out. And if I remember correctly, both arms come off on 5800 - and one can only assume 6800 and 9000 - calipers.
Cheers. Superbly helpful.
Thanks so much for showing how that weird looking nut holds the spring in place, on the BR 5501 front brake caliper. I was ready to give up on removing the broken section of spring, so I could replace it with a new spring (on order from Loosescrews on Ebay). I didn't know that the nut just screwed off. It was on so hard! You are MUCH appreciated!
jealous of your new workshop
Braking news!!
Bob Foster good one
Bob Foster hopping on the 'comment of the week' train!
😂
Nothing like a good pun.
Brilliant vid!
Thanks GCN. I got my 105 5700 front brake working again.
Si, u always crack me up aloha mate
THANK YOU
Thank youuuuuuu!!
6:24 "he can't believe it's not butter"
When he began disassembly, he didn't clarify the process. He made it look like he unscrewed the bold with the 5mm allen. Well, it won't release before FIRST unscrewing the locknut on the other side! This is a bearing with an adjustable 5mm bolt so set "preload" and minimize play, and a lock nut to hold it in place. Minor omission, but important.
Quick way to clean up dirty & corroded parts: wire brush on a drill. It makes quick work of all the stuff he was using a scribe to scrape off the crap. Wire brushes also clean up corroded bolt heads & threads with ease. (Oh and a 1 3/8" small circular brush is PERFECT for making BB threads pristine!)
Soak the center bolt & caliper arm with "seized" set screw in penetrating oil. That would probably do it. If that fails, then use an impact wrench - on the low setting. And as others have mentioned, then try heat.
Ok 105 Calipers look pretty easy. However, a warning, I tried servicing Ultegra 6700,s and it is a lot harder than this. First the non cable side bolts that came out so easily in this video are clamped by a small Allen screw. This when tightened originally in the factory damages the threads in that location and makes it difficult to take out. In fact I think taking it out is partly stripping the threads of the calliper so I don't think this is a good idea. After overcoming that and doing the cleaning the next pain is reassembly. The spring isn't in the same place and needs to be compressed at the same time as getting that bolt back. This is very hard (and frustrating) to do. I suspect the factory as special tooling to do this. I eventually got the whole thing back together, but it was such a pain I probably wouldn't do it again. Having gone through all that and with safe and reliable brakes being critical, I have to say either keep you brakes clean so you don't need to do this or for the price they are nowadays just buy a new calliper. After all a set of front and back 105 brakes can be got for around £50-60. Less than a set of tyres!
Good to know. Thanks for posting!
Yes there is a special tool to assemble the newer dual pivot brakes but it is not necessary. I put the caliper in a vice, compressed and held the other part with one hand, and used the hex key with my other hand. Worked okay-ish.
Geez I thought I was just being a crappy mechanic. I JUST did this and 6700's are a pain in the A$$. Glad to know I was not alone. I was mind blown to see those PRE-stripped bolts too (I completely removed all set-screws before undoing the bolts with bushings).
Well its looks pretty easy so I will give it a go thanks
gcn is almost at 1,000,000 subs!
I did this myself with my 105s before I stumbled on the video. Trial and error so painstaking - esp the spring element. Very satisfying outcome though - braking feels like the day I first rolled the bike out of the shop. I'll have to do it again at some point but will be equipped with know how. Pivot barrels loooove durable grease.
i like that the wrenching videos are getting a bit deeper in subject matter now. but as instructional videos go, a little more rehearsal makes the vid more concise and.... well, pro. eye protection is a good idea when working with springs too!
(btw, i've been a shop mechanic for over 10 yrs.)
lastly, Si, the curls look great!
Thanks!! This saved me 50 quid!
Nicely done and funny vid too. Puppet on a string!
I dig the creative placement of the degreaser can on the magnetic bowl at 6:12 and 6:41. Hack or bodge?
could you do more videos like this
nice video
I did this with a pair of Campagnolo Athenas (early 2000s edition). All was perfect, until I reassambled the second caliper and then gave it a good squeeze, let's see if it's working... I actually snapped the spring!!! Thankfully I managed to find a spare online on bike24 or something, put it back so I could sell the whole lot which was my purpose anyway. I was about even in the end. But I also learned a good lesson.
jasno i dobrze wyjaśnione; thx! :-)
Good video helped put my caliper back together only thing is if you can show close ups and more details and a bit slower.
Iv been watching gcn for awhile now and most of these kind of videos are the same. 👍
what was the spray cleaner thing you used to clean up the components
You should use a little bit thread lock. Since those parts are moving and vibrating a lot they might unscrew themselves while riding. Which would end pretty bad..
Actually you could apply a bit of heat to that grub screw, that would shift it.
I think the calipers are very confusing in some ways ESP when you have then apart - hence why I bought some planet-x cam variants 👍
Got any 105 black in your drawer. I’ll take and clean!
What is a good weatherproof grease to use?
Have you any tips to open sram rival dual pivot brakes wide enough to fit some carbon rims? They won't open enough even with the brake cable detached.
Super Mechanic.
Whats the pre-greasing spray used?
I've already done this a couple of times while trying to figure out my rubbing rear brakes..
All that work for nothing.. All I needed was some new cables...
panzerveps idiot
Eoin Mellon I know. I underestimated the power of worn cables...
that's how you learn
@@panzerveps You live and you learn. As far as worn cables go, they can make all the difference. Shimano 105 groupset + Dura Ace cables properly routed is magic.
the look of si at 1:52 is magnificent!
6:26 too
What degreaser did you use? Is GT85/WD40 good?
whats that little bit of tape for?
Make sure you check the cable too. If its rusty or dirty the breaks alone will not be strong enough to push it back and there you have it, the breaks are stuck on the wheel
Already done this like four years ago, bad outcome, it's a clever system with washers with tiny integrated ball bearings in it, would recommend just buying new as also the alignment when putting back together is also hard....
IF ONLY GMBN MADE MORE OF THESE VIDEOS FOR MTB V BRAKES AND DISC BRAKES
Can i ask what liquid did you use to lube it?
what do i do iv lost the small part on spring
What is that can sticking horizontally out of the wall?
so now you will put that on your new canyon?
Did you guys do a makeover on your shop? Great video btw!
yea mate , they did a vid of it too ;)
Hi I did what you showed me and it is stays against the bicycle back wheel
I doubt Si's going to be riding Shimano 105 any time soon.
Is the spring a standard size? I have brakes on my Bianchi, that are not branded (just marked Bianchi), so I can't search for parts. The spring on the back brake is badly rusted and needs replaced. Any help would be greatly appreciated!
Should you periodically lube the pivot points on the brakes? Would chain lube work? #askgcnything #TorqueBack.
Yes, in most cases. Just be sparing with it and wipe off the excess. Don't want the lube ending up on the rim or brake pads.
whats with the gravity defying aerosol can at 6:40 ??
One of my brakes keep sticking on my vintage Raleigh racer. How do I remedy this?
I am having the same problem on a vintage Bianchi. Please help!
No doubt someone is sponsored by Park Tool here....
What I do with all the parts and pads and soak them in hot water with dove dishwasher soap. Literally the soap degreases everything from rust to grease and they're like brand new again. Then I use the white petroleum Grease. Also because you're soaking the pads it helps get rid of all the grease off the pads then I wipe the rim with a wet Dove soapy rag and I let it dry and then the brakes stick really well
Love ❤️😍 rim brakes. Disc brakes ruined the look and the aerodynamic of the bicycles.
You should put this video on ifixit website :)
and how was your first time?: IT'S IN!!!
Where can you get replacement / upgraded calliper springs?
For the BR 5501 Loosescrews on Ebay.
I lost that little plastic how canI replace it ?
Idea for a next maintenance video: how to service Shimano STI levers
What is that little piece of tape on one of those calipers? All my brakes have it too. Does it have a purpose?
Seized grub nuts can easily be loosened with a soldering iron. Heating the grub loosens them up. Failing that if it's all metal try the oven.
You should of taken it as a challenge and shown us what you would of had to do to get that grub screw out. Take it a local machine shop or put some heat to it or ultrasonic soak or whatever works.
Combination of ultrasonic water bath and kerosene immersion will do the brake caliper reconditioning trick without disassembling.
Heat + dismantling lubricant works but you have to consider any plastic bushings.
hi,
i'm a little curious as to how you knew that mounting the spring would hurt your fingers if this is a job you have never done before. hope you all had a nice xmas btw
you can heat it with a soldering iron and it will come off. or a heat gun.
hi gcn, how do I increase the brake power of my tiagra brakes
get softer brake pads and clean the rim of the bike.
I bet you haven't used Shimano 105 components since you were a kid have you? That being said, there is nothing wrong with them, I have been using Shimano 105 for 20 years with complete satisfaction.
At 5:30, how does one tighten the nut without tightening the bolt? I don't see that the threads screw to anything other than the nut.
I asked my question above at www.bikeforums.net/bicycle-mechanics/1206869-question-about-dura-ace-bl-7403-brakes.html and received this answer: The caliper back "plate" is threaded for each pivot. So the nuts are lock nuts, meant to trap the pivot bolt in place.
Sometimes (emphasis on sometimes) it is possible to remove a 'seized' screw by tightening it slightly first, before then unscrewing it.
It’s crucial to hit it with a shot of TRI-FLOW, and then giving the backend of the inserted allen wrench a few good smacks to vibrate that good smelling juice down into those fine threads. . . The ‘forward first’ technique has a lot of science behind it and works well in saving many a head from stripping out.
Ok, so i was adjusting my dual pivot on the front wheel and I'm not sure what I pushed up on but whatever it was it snapped up and the brake pads are nearly touching and they won't open even with a lot of force. When I apply the brakes, only one side pivots and it feels really loose compared to how it was before. Helpppppppppppppp
I've also been looking for articles and videos but haven't been able to find anything ):
I've never seen an aerosol spray can stored in that manner before.