How to Replace a Bicycle Disc Brake Rotor

[@jimihenrik11]

At this point I feel like I got half a bike mechanics education from this channel. Honestly it's even working for them. Whenever I buy new bike tools I always look for park tool stuff because 1. I know the tools are high quality. 2. I'm thankful for all the free high quality information they provide on KZbin.

[@booppert5897]

That’s the goal, make more mechanics to sell more tools

[@kristianjacobsen355]

You can tell a lot of work was put into this video. Keep it up guys, we really appreciate it!

[@TheSHARCRASH]

It's a company, isn't this normal?!

[@Frank-mn4hx]

@@TheSHARCRASH A company does promote their products. They do that here yes BUT, A video containing a company that promotes its' product will show a note telling that it contains promoted products. This video does not. It doesn't say what brand of brake-rotors they use and they give advice about what tools you can use. A video made by a person like myself can give advice what tools to use too. It's possible that I can make a video using a specific brand, while I DON'T promote it's products.

[@ed0078]

Well done. I really appreciate the videographer and graphics team

[@mrkiklop133]

I also appreciate the audio choice.

[@AudioTones67]

I can't possible explain how grateful I am for Park Tools producing these videos!

[@Frostbiker]

And this is why I buy Park Tool. Many thanks for explaining things succinctly.

[@kswsquared]

The only instructional video series I regularly binge-watch.

[@sygad1]

wow, ALL youtube instructional videos should take note, THIS is how it's done, excellent work and thank you for such a great tutorial

[@PRH123]

Thanks. Now it’s clear to me how to ID a worn rotor that needs to be replaced. Good stuff…!

[@meteturhan3505]

4:56 This is the best instruction i've ever seen! Nice graphics team

[@fretboardrunner]

I buy tools from you just to thank you for these videos.

[@RobMacKendrick]

Just adding my props. This channel rocks, and thanks to you guys, a guy who despises disc brakes (me) has been able to coexist with them with no more than the government-mandated amount of swearing.

[@user-d32658]

That just means you don’t know how to do the maintenance.

[@whatyoudo9773]

probably the best bike work vids on the net!

[@PatrickDuganOFFICIAL]

This is really good, and so detailed it made me realize I should just bring my bike to the shop for this work!

[@lewokejames]

Huh??? How did you not get how extremely easy this is even for a non mechanical type person ??? 🙍

[@thegrowl2210]

@@lewokejames Might be easy, but the tools are bloody expensive.

[@lewokejames]

@@thegrowl2210 you got to be kidding right? Maybe $20 in tools if that.

[@lewokejames]

@@thegrowl2210 you don't need to buy park tools brand you can literally get the couple tools you need on Amazon which is exactly what I did

[@inglouriousmofo]

Sometimes shops don't even do it correctly...

[@gopromountainbike901]

Mine is 160 180 my mountain bike is brand new hydraulic just be careful they have make different design of rotors awesome video it makes my day even better

[@MaquinasDePalomitas]

Super thorough!! You guys even covered adapters, which is what I was looking for, covered the adapter type I bought, plus the bonus tip at the end about caliper alignment.

[@peterswarbrick7974]

How do you stop the tool slipping off the locking ring?

[@Frank-mn4hx]

@@peterswarbrick7974 The tool is slipping of the shallow lockring at the brake-rotor? Try to use more pressure holding the tool is place. That can help to loosen/tighten the lock-ring.

[@francescodiprisco6200]

Best video tutorial ... as usual by Park Tool staff. Thanks!

[@kaltonian]

thanks park tools, i did wonder if possible to change from single centre locking to the 5 bolt locking system...and now i know without having to over spend, again...... thank you very much PT

[@ichewtoast111]

These videos are underrated.

[@genedillman7811]

Thanks for the tip on using the Loc-tite.

[@martmexpue]

Your videos are the best… thanks a lot

[@bruce4399]

Excellent video as always, very informative. Thanks.

[@ericpatterson8596]

Great job parktools !! 👍👍

[@wangdangdoodie]

Nice clear and concise video. Kudos for wearing gloves too. I see far too many KZbin videos where the presenters aren't wearing gloves while handling new components.

[@808koko808]

Thanks for the video. Helped a ton!

[@mrfcukmylife]

3.36 makes loosening the bolts look so easy. I've tried everything to get mine out to no avail and pretty much rounded out the bolts.

[@EphraimSyriacus]

Me too! I am afraid of ruining the bolts and eventually never be able to losen the rotor. What did you eventually do?

[@lastwordindicator]

It is also very important to establish a good rapport between the bike mechanic, the tools and even the bike itself as can be observed by the bike mechanic quietly establishing his displeasure of the lack of cooperation from the other two at 9:05

[@scottyfpv5651]

My rotor got mineral oil on it. And I stripped the bolts. So I'm on the verge of a mental breakdown over here. 🙃

[@MrChando1975]

Great video man! Be blessed 🙌

[@kosztaz87]

Incredibly well put together video. I have the center lock version disc which needs the external tool. And just to let you guys know, that thing absolutely sucks. I have a tool (not Park Tool, but a cheap chinese one), and it's impossible to remove, as soon as I try turning, the goddamn tool just pops off. I have to take the whole bike to the bike shop. The old school 6 bolt system is just sooo much better, I don't know why the hell did Shimano feel like he needed to reinvent the wheel, and make the whole thing worse, needing extra tools and such.

[@parktool]

Tool Quality for this fitting really does matter. Our tool offers a flush face for the best engagement, so it will not slip off.

[@truantray]

Welcome to the bike industry, where we now need a drawer of rare use speciality tools to work with all the "standards".

[@PRH123]

The tool that removes the center lock is the same as the cassette lockring removal tool. Mine is Shimano branded and doesn’t slip. It was clever on their part to design one tool for two different uses.

[@JanKowalski-ux6nt]

@@parktool Can I replace shimano lock ring Y8JX98020 with Y8K198010 ? (12mm thru axle). I want to use the same tool for cassette and for disc brakes rotors.

[@Customercf]

@@PRH123 Not for the external one.

[@TylerSimsMechanical]

Great video. Just wanted to point out that at 6:40 you say to use isopropyl alcohol but the video shows denatured alcohol. They aren't the same thing.

[@DR_1_1]

Works well in most cases, even for more delicate tasks, like cleaning lenses.

[@misternobody4644]

Truman should get his own show, we can call it, wait for it, "The Truman Show."

[@paulbusby2013]

Just shows you can trust Park Tool to keep their videos completely up to date by mentioning lockring rotors come in 2 types of lockrings that require different tools!

[@leeswenson4350]

Truman, can I have your autograph? Seriously, great job on this instructional video. It's been been fun following your bicycle related career path, from teenage bike builder to Park Tool video star!

[@parktool]

Lee! Good to hear from you. We should get out and ride soon! Lil different work than helping you at the shop in Hastings. Good memories. See you soon! T.

[@yuzhne-rc]

Great video! Thanks a lot

[@luifergreco]

Excellent video, veeery complete

[@SBC280]

Do you have a video on how to replace hydraulic brake lines?

[@parktool]

Not at this time. That is a good topic however, we will put that on the list.

[@PepinoMichoacan]

Great video !

[@shanegrant8441]

Very helpful video thanks 👍😁

[@cyrussituma3391]

u really do a good job 😁

[@jackpilkington6770]

Great vid!

[@lionsmusic004]

woooww!! really loved this video, very instructional

[@Jaderixx]

Im feeling like studying at school, gosh why the bicycle got so sofisticated

[@kurikokaleidoscope]

Very interesting and informative presentation.

[@janvincentaguilar1353]

nice video,

[@PeterlosAparatos]

epic video, thanks

[@jay2xjay84]

Thanks 🙏

[@whatsyurprob158]

How is the front rotor installed on the RIGHT side of the wheel? Thanx

[@henfencey5751]

9:21 This guy sounds fed up with having to explain this basic shee to us. It's just very convoluted with new unnecessary proprietary technologies being developed all the time to require you to upgrade all related parts in order to fit the standard so I'm glad this video exists

[@jefferson9428]

are the internal and external lock ring types interchangeable?

[@th_js]

Veri nais videou (Very nice video)

[@rayvax3883]

is it possible to install an internal locking rotor on a wheel that previously had an external lockring?

[@parktool]

If you get the right adapter, yes. See some similar to www.jbi.bike/site/product_details.php?part_number=120181

[@vangibbons8295]

thank u love the content

[@jonahtillman9499]

My centerlock rotor is really stuck. My local shop couldn’t even get it off. Time for a new hub? Maybe some tips?

[@peterswarbrick7974]

I need this tool to unlock the locking ring on a Shimano disc brake rotor. But it keeps slipping off. I can't use the BBT69.2 because the axle protrudes through the hold where the ratchet handle would engage. What do do?

[@parktool]

See the BBT-9 as an option

[@lukasrossi1593]

Is it normal for centerlock Shimano disc brakes to move a lidle bit under load?

[@parktool]

There will always be some tolerance between the centerlock spline of the hub and the rotor. So, if you hold the brake and rock it back and forth there will be a small amount of movement there.

[@redtobertshateshandles]

@@parktool thanks, you answered my question. 👍

[@jornmulder]

how do you pull of the 6 bold adapter ?

[@salad_gold_rancher]

Should the threads of the lock ring, for centerlock, be greased or not greased. I note that the instructions indicate to not grease the splines.

[@parktool]

No grease on the splines and if anything at all put anti seize on the threads of the lock ring.

[@cosmincostea8386]

thanks

[@JMUDoc]

Just upgraded from F/R 160 to F/R 203. Completely pointless - I ride the thing in town - but a lot of fun😁😁

[@DR_1_1]

You ae better with rim brakes in town, imagine someone bumps into your rotor? You can't even walk away with your bike.

[@LimPu]

Honestly, I am an average user and happened to get myself a bike with center lock. It should be illegal to sell such things to "none-pros". Like...what the heck

[@calvintanner7897]

How long can electric bike rotors last before charging them, and what sizes are required for both front and rear wheels ?

[@salites5553]

where is calvin jones

[@parktool]

He's drumming up some incredible content for the future.

[@trini_boi2414]

What's the reason for upgrading from 160 to 180? I'm new to the biking thing so I was just curious

[@parktool]

Moving to a large diameter rotor offers more leverage to the brake. The caliper must be spaced correctly but you do get more braking power.

[@michaelgunawan2319]

Park Tool HPG-1 has a max operating temperature of 540° F. DOT 5.1 has a boiling point of 518° F, and Shimano and TRP mineral oil have similar boiling points. So shouldn't it be ok to use grease on rotor bolts?

[@OnanFromStatefarm]

Hey park tool i bought a new disc rotor and it came bent the person then told me this : “All rotors need truing during installation as they are a stamped steel. I recommend purchasing a rotor truing tool in order to install these correctly and true them for use.” Can you tell me if this is true ?

[@parktool]

Not wanting to step into a retail transaction between parties, we might offer that having to align a new rotor is not unheard of, however, it would not be considered the norm.

[@andriejohnruado9463]

7:41 can you see theres a internal spline does that tool still exists now adays

[@parktool]

On that silver lock ring that tool is not available. It is a tool used by manufacturers only at this point. The external fitting is much more common and versatile. There are no lockrings with just that internal fitting size. There are other rings without any outer tool fitting but then the internal tool fitting is the same as the FR-5.2.

[@andriejohnruado9463]

Thank you very much by answering my question that been stuck inside my mind every time I loosing silver lock ring of shimano 😊

[@gopromountainbike901]

When I what to a bike shop you know buy something for my bike also I saw this disc break has two arrows I was shocked 😮 it should be one way rotor disc and love ❤️ this video so much make sure disc is perfect tight 7 🔒 I never seen it before it my first time see it my is 6 bolts

[@rebeticstone]

thank u!

[@waynesbutler7834]

What a great video as expected , a lot of comprehensive info . I have a question I hope you can answer . Can a standard 6 bolt rotor that is cut from one piece of material be interchanged with a 6 bolt rotor that has the aluminum spider in the center , our will there be rubbing or misalignment of some sort ??

[@parktool]

In theory, they should align the same. There is a standard they should both match. In practice, you better double check and re-align the caliper as needed.

[@hench_wrench_repairs]

my disc is a 10 year old avid G3CS and its still going strong and my rear beake pads are work so thin their barely a fingernail thickness away from the backing plate

[@EchoHawk1862]

I think I stripped my bolts out they were on there really tight. Do you have any ideas of how I can remove them?

[@parktool]

If you drill the heads off, it's likely that you can grab them with a locking pliers or a pair of screw removal pliers.

[@joshgray9035]

How do you use the FR5 lock ring tool with a torque wrench ?

[@parktool]

Use a 1" socket over the top of the FR5, which is made from 1" hex steel stock.

[@joshgray9035]

@@parktool thanks!

[@xts_eddy9527]

My brakes are squeking and i sanded down the pads a bit to get dirt and such off and used that alcohol with a rag onto the disc and they still squeking so what should i do? Change out pads and disc or what

[@parktool]

Safest bet is new rotors and pads. But that does not often make sense so re clean and scuff your rotors and then install new pads. That should help with the squealing.

[@soliranje]

Hi, on my bike are rotors with center lock and lock rings are with external nothces. So, are all center lock discs compatibile with external lock rings? I use shimano sm-rt10 CL discs and can I replace it with sm-rt30 CL discs and keep external notches lock rings? Thank you.

[@parktool]

They sure are. And you sure can use the lock rings from your SM-RT10's on your new CM-RT30's.

[@soliranje]

@@parktool thank you very much

[@UranusAnalyst]

5:47 Perhaps wipe the rotor with isoprophyl alcohol prior you install the rotor which make the wiping much easier

[@gomitch2]

What does the G Y17 stamp mean on a Hayes 160 brake rotor?

[@toondewindt3435]

Hi, i have the same center lock rotor as used in the video. When trying to do a skid with the back wheel the entire wheel starts to vibrate and it doesn't skid nice, can this be because the lockring isn't tight enough?

[@TheBriiig]

New bike is also a great option )

[@09ifyarsenal]

What else can u use to wipe both sides if u dont have the alcohol

[@parktool]

Acetone would be good. A window cleaner is better than nothing. Use solvents that do not leave an oily residue.

[@dooleh84]

Just unscrewed my factory/store tightened center lock rotor by hand after 4.5 years of use... I was less than happy with this.

[@OndrejFialaEnduro]

What if i have six bolts but it's like bolts but the heads of the bolts are bold

[@suhaidisavio]

Hi there.... My bike's rotor got free play back n forth.. Is it because the aluminum shim between rotor & centerlock missing/worn out?

[@parktool]

That could be. There are also lock rings that have more and less thread engagement. If you have one with more thread engagement it could be bottoming out on the axle end cap. This does depend on the hub though.

[@suhaidisavio]

@@parktool👌🏻.. Tq sir!

[@mariorojastenor]

Can you use the either a 6 volt or centerlock disk brake rotor with the same disk brakes? thinking of upgrading my wheels but the sets I want come only in center lock so was just thinking of changing the rotor insted of upgrading the whole groupset. Can this be done? Thankyou!

[@parktool]

They both work on the same brakes just fine. There are a few clearance limitations on some brake caliper and rotor combination but overall they are very much compatible.

[@mohamadhaikhal5860]

Hi, Is it possible to install double rotor on the front? These days, there's a portable caliper which able to fix on the side of the frame or fork. Is this doable?

[@parktool]

It is possible but not practical or feasible. It would take a lot of fabrication on your end.

[@hench_wrench_repairs]

What happens if i go too thin with a rotor

[@truantray]

Is the point of Shimano to make every single part require a unique tool?

[@hedemalmcarl]

okleydokley yes

[@mitchellalien]

What sort of person leaves a dislike on one of these videos?

[@michaelnoone1565]

Am I the only person disappointed that the paper towels and alcohol are not also blue?

[@josephw7059]

Should I replace my pads when replacing the rotors? Even if the pads are still good?

[@yongling9825]

As long as there's still enough braking compound & that they're not contaminated with hydraulic fluid, you can still use them.

[@mugiwaraluffy3287]

2 bolts got stripped on my front rotor. What should I do to remove it?

[@parktool]

I have had to drill the heads off of rotor bolts before. Once you drill the head off you are left with the stud, which you can typically hold onto with a locking pliers to spin them out. If they have a good amount of thread locker on them you might heat it up a little first with a heat gun to loosen up the thread locker. Past this its drill and try an easy out. Hope this helps.

[@mugiwaraluffy3287]

Thanks, I guest i'll need to go to the nearby bike shop as I dont have the tools needed and let them do the work.

[@zohaibali9990]

What to do if my old rotor bolts are super stuck how do I remove it?

[@parktool]

Those can be difficult. If the heads get stripped out then the heads can be drilled out, rotor removed and hopefully grabbed onto with a locking pliers.

[@zohaibali9990]

@@parktool no the heads aren't stripped out the bolts are just stuck like crazy kindly help me remove them without a drill plz

[@parktool]

Use a longer lever and keep turning. You can use a bit of heat on the hub to hopefully enlarge the holes slightly. Try not to heat the bolts when doing that. A hair dryer or heat gun in a low or medium setting should be all the help it needs.

[@zohaibali9990]

@@parktool okay I'll try and let you know thanks for the help

[@underratedphonker6395]

Should I replace it if I sprayed it w/ wd40 or use degreaser?

[@trelosenario]

Hello There , Great video. I have a newbie question :) Recently i bought a caliper that instead of B01s pad it had a G03S Resin pad ( BR317 caliper ) and i saw that it wasn't touching all the surface as the B01s pad did, it is narrower ! So the question is : is it safe to use as long as the rotor is the same diameter ,example 160mm . or do i have to change the rotor to the appropriate one ,example from RT-30 which i have now to RT-54 which Shimano states at the site as compatible ? Can i use even a better quality rotor like the SM-RT68 so i can use metal pads in the future ? Thank you

[@parktool]

We do not recommend using the BO1s pads in place of the GO3s pads. The back plate dimension needs to be correct for them to work properly. They may work but not as intended.

[@trelosenario]

@@parktool Hello and thank you for your reply , but i didn not ask if i can swap the pads . To say it with less words the question is can a GO3s pad and caliper obviously work with any rotor or not ?

[@FelipeLuizDickmann]

Hi, is it safe to put 180mm on front of my ciclocross bike? It's an aluminum fork by the way.

[@parktool]

Check for the manufacturer to be sure. Some have max rotor sizes listed.

[@panaplexi5708]

Can you use car brake cleaner to clean the rotor?

[@parktool]

You sure can. Remove the wheel from the bike to do that. Car brake cleaner can have a lot of power behind it and spray all over.

[@sonamdhondup6265]

Can you tell me. Name of tool which have limit locking

[@parktool]

"Torque Wrench". The tool used to control the amount of tightening is a torque wrench, such as www.parktool.com/en-us/product/ratcheting-click-type-torque-wrench-tw-6-2

[@bachirsouccar8224]

can I use BBT 29 instead of bbt9 on external notches ?

[@parktool]

The diameter of the tool pattern on the part is different between them. It will not fit the rotor brake lockrings.

[@notredame233]

6:04 for centerlock rotors

[@sethmtb954]

Would anything bad happen if I took off the front Centerlock rotor completely?

[@parktool]

Nothing bad will happen. They are designed to be removed. If you rode without it, you would be riding with a 70% reduction in stopping power though.

[@jimmybrown2865]

I want to remove the front brake off my dirt jump bike, is it as simple as just removing it or do I need to get spacers.

[@marjanmayer]

Jimmy Brown just Remove it