Calvin is the man! Parktools have a fantastic line of equipment, but for me what really makes this company shine are its technicians and their ability to teach someone like myself who's willing to learn all I can. Thanks guys, you set your company apart from the rest!
I accident removed the inboard pad adjuster set screw and it came out along with a spring and bearing. This is on a Tektro Airies disk brake system. How do I get this reinstalled? I don’t see a place for the spring and bearing. I also heard that they may not be needed. I adjust se set screw to the rotor, backing off about 1/4 turn. No rubbing and brakes were good. I rode my bike for 106 miles with no issues. But noticed, the pad adjuster set screw was missing, meaning it came loose and fell out.
Been building a 2005 Specialized Stumpjumper with reconditioned forks and shock, every pivot bearing replaced, brand new drivetrain, headset, wheelset and brakes. Today I found the rotors I installed on the wheels 3 weeks ago were out of true new out of the box which tested my Anglo-Saxon vocabulary to its absolute limit. Watched this vid, followed the instructions and problem solved in under an hour, thanks!!!
You guys are absolutely AMAZING, THE BEST. I LOVE YOU. Im kinda newbie and dumb about bikes and such. Especially whole brake system was kinda hard to understand for me, but i wanted to fix myself. I was reading some articles etc, few videos and it didnt help me at all.But every each one of your videos is so well made, nicely and easy explained.. Only thank to your videos, i got it all now. I fixed everything i needed. Simple, easy and compared to some services very cheap. Thanks so much. Amazing job, good luck fellas.
It works most of the times, but it sure is not a pleasant process since you are constantly limited by touching spokes because jaws are so wide. Dedicated tool is like $3-4
I ever tried putting the rotor on a flat working table , and looked from the side , after spotting the bended area ,I marked and used mallet knocking several times and it worked 🤫
It seems like the ideal thing to have would be a way to have a reference plane of the rotor down by the hub to better determine if a deviation needs to come in or out at the braking surface.
How do I distinguish whether it is the wheel or disc that needs truing? I put together a new Walmart Hyper Ebike with 700c wheels and mechanical brakes. You can hear the disc rub, but you can also see the wheel wobble. At first RUclips convinced me I have to true by going spoke to spoke, but I hadn't even thought of the disc being the culprit until I saw your video.
That was super helpful. I've spent hours making a rotor seemingly worse. I'm going to try to use the trick of sharpie numbering and I have the park truing stand and the rotor truing tool
I tried all methods on my Shimano saint brakes with Hope Floating rotor and red Gaffer pads. First I tried to straighten the rotor by looking straight down at it. This worked rather well actually. I had just done service to the fork so the caliper was not in place. Once I was satisfied with how straight it looked, I braked with the lever and fastened the caliper in that position. This helped a lot, but.I still had some minor rubbing here and there. I couldn't be certain of which direction, even when I looked inside the caliper, so I just chanced it and straightened it in any direction. If the rubbing got worse I straightened it in the other direction. Lil' bit'll do ya!
@@parktool Thanks for the input, and you may be right. I have even had to straighten the Hope vented rotors, even though Park tools doesn't make the tool for such a big rotor. I just wanted to mix and match saint and hope parts to reduce the on and off feel of the saints. But after trying it today, the saints are too darn powerful to not have quite a lot of on off feel still. Could be the saint levers that pushes too much oil at once. I can try with XT levers and see how that feels. The Hope Tech 3 levers should be mounted on a harley davidson, being quite big and slow 2-finger levers. Hope uses DOT 4/5.1 and cant be mixed with shimanos mineral oil sadly.
What size rotors are you using? I find that sometimes one step down in rotor size can gain quite a bit of modulation, if you are willing to give up some power and heat dissipation.
@@parktool I weigh 110kg/242Ibs geared up. I can feel when a brake is to weak to stop me. :P This is the reason why I started modding my brakes in the first place. Even new Shimano XTs on 180mm rotors are to weak for my fat bottom. Now I use 203mm rotors exclusively with Saint or Hope V4, and sometimes a bit of both.
Wow that dial indicator is awesome! How do you know when to replace a worn out rotor? I don't mean bent, I mean like it gets used up. (If that's the case at all)
Each manufacturer has their own wear specifications. However, if you can see that the rotor thickness at the braking surface is different from the rotor arm thickness, it likely needs replacement. - Calvin
Awesome video.. sucks that both of my new RT86 rotors are warped causing actual wheel slow down.. I bought the park tool bendy tool but have a Bike Hand truing stand so probably do on bike ..
u can do the alignment laying down the disc to smooth heavy metal then place a piece of wood 1x2 on top of the disc and try pounding it with a rubber hammer but not so hard, start with a light pounding going harder and harder as you examine the improvement.
It would be surprising if that worked, as it is hard to check the small tolerances needed against a flat surface. However, there is only one way to find out. The worst thing that will happen is you end up buying a new rotor.
I'm thinking about installing a disk brake on my brake calipers bicycle but a didn't find any good video about it. Any recommendations? Thanks in advance!
I have the same brakes and am dealing with the same issue. Will keep you posted on the solution. As of now increased spring tension and added a bit of protective tape where the fins meet the caliper body.
@@parktool lol yeah there are tons of forum threads on it but best advice was wait till they get full of brake dust. I have 2 other bikes with single pistons and the pads are def tighter in the caliper. I was thinking about either cutting and apply strips of gorilla tape or applying liquid electric tape (liquid rubber). I talked to 2 bike shop techs in passing, they thought I was crazy...it is driving me nuts..
How do you determine the starting point of the DT 3. I see how u started here but what if the rotor was bent in not out to start with? The DT 3 obviously can't mount going thru the spokes?
@@parktool thanks for the response. more specifically i meant. what if the entire rotor is coned inward and the entire rotor only needs to come back out away from the bike? then the tool wouldnt touch it anywhere.
Apologies for chiming in but I don't know who else could give me reliable advice. I recently bought - not yet installed - a Deda Elementi 120mm stem (model: Superzero), which has a clamp height of 36mm instead of the usual 40 or 41mm. Will the reduced contact area between stem and carbon steerer tube (Cannondale SuperSix Evo) potentially endanger the integrity of the carbon steerer tube? Thank you in advance for your reply.
Calvin help i got DX 700 Shimano brakes the top are normal to bleed the bottom i cant find a bleed port only a allen key screw near brake barrel no nipple no rubber seal hiding one ? Need to push pads apart to align and bleed ! no nipple HELP PLEASE !
Hello Oleg, I am not familiar with the DX700 (cant find any literature on Shimano's tech site for them or anywhere online). Typically the Shimano calipers that have a small hex key and then a flush rubber cover over a port that is cast into the caliper body or there is no rubber cover but there is a port, require you to hook up your bleed syringe hose to that cast in port, then loosen the small hex key to open up the flow of mineral oil. The port may be at a downward angle making it hard to see. An image to tech@parktool.com would be help. Thanks, T.
An inexpensive one is great to practice on. Give it a shot straightening and then you have a little more knowledge. Then if you cannot get the rotor straight or it is not going well, then replace the rotor. Many rotors are slightly bent from the factory and need to be fine tuned. I find this to be true at any price point for rotors.
The tool which Calvin uses for this video is really expensive man and I think that it is not worthy enough to buy.i fixed my disc brake (mechanical) with an adjustable wrench😏.but I should appreciate him for the wonderful tutorial
I've used an adjustable wrench before, however now have the DT-2. Mainly got it as a birthday gift from my sister, however the longer slot on it is probably slightly better for adjustment than the shorter jaws of a wrench.
This guy is great no doubt about it. Well spoken and super mustachy hehe And i understand that they promote the tool they sell. But a special tool to fix bent rotors? Unless I'm missing something why in the hell pay for that when plyers will do the job? Park tools are great I am sur of it but also waaaay pricy But then again everything in the MTB niche market is overpriced so can't blame them
pliers open on a hinge, so it's hard to hold the caliper steady and not grip it too tight, marring up the surface in the process. They can work in a pinch, but if you do your own maintenance (or use hydralic brakes) then getting the tool will save you a bit of a headache. Some brake rotors for downhill bikes are very expensive, and I'd hate to scratch a rotor that cost more then the brand new hybrid bike sitting in my kitchen.
It would not mess it up but as metal has a memory it would just spring back. You need to bend it past where you want to to be to actually make a permanent bend.
Everyone's already bitchin about how expensive park tool is - and you want them to go out and buy a hydraulic press? Should have recommended a Tesla car then.
No need to worry about scratching your rotor. That being said the tip of the DT-3 is rounded so it does not scratch the rotor. People often use sand paper or Emory cloth to rough up and scratch their rotor to de glaze it so it stops making noise. So, Scratches are not a bad thing for rotors.
Well, they obviously sell tools, you moron. How are they supposed to make money being a tool company? You really didn't think your comment through did you? Not to mention you get a free tutorial on how to use the tools and fix your bikes you selfish ungrateful narcissistic prick. Have a nice day :)
![Seungmin "그렇게, 천천히, 우리(As we are)" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/kAzmhLHePqU/mqdefault.jpg)
This video is so good that makes me want to buy a disk truing stand, even though I only have rim brakes.
Lol
😀😃😄
Juan Araque: I agree. I got it so bad that I wanted to bend my rotor just to fix it.
agreed !
😂
Calvin is the man!
Parktools have a fantastic line of equipment, but for me what really makes this company shine are its technicians and their ability to teach someone like myself who's willing to learn all I can.
Thanks guys, you set your company apart from the rest!
No one comes closer to calvin and park tools in term of viewer-friendly, easy to understand video tutorials. Thumbs up!
There's something almost meditative about Calvin's tutorials. Another top video bud thanks again.
I accident removed the inboard pad adjuster set screw and it came out along with a spring and bearing. This is on a Tektro Airies disk brake system. How do I get this reinstalled? I don’t see a place for the spring and bearing. I also heard that they may not be needed. I adjust se set screw to the rotor, backing off about 1/4 turn. No rubbing and brakes were good. I rode my bike for 106 miles with no issues. But noticed, the pad adjuster set screw was missing, meaning it came loose and fell out.
Been building a 2005 Specialized Stumpjumper with reconditioned forks and shock, every pivot bearing replaced, brand new drivetrain, headset, wheelset and brakes. Today I found the rotors I installed on the wheels 3 weeks ago were out of true new out of the box which tested my Anglo-Saxon vocabulary to its absolute limit. Watched this vid, followed the instructions and problem solved in under an hour, thanks!!!
This is a great video. I used the dial indicator method and was able to get my warped rotor to within +/- 0.003". Love your videos. Thanks!
What this guy doesn't know about bikes. Isn't worth knowing! My go to when looking for any repair. Very informative and simply explained.
You guys are absolutely AMAZING, THE BEST. I LOVE YOU. Im kinda newbie and dumb about bikes and such. Especially whole brake system was kinda hard to understand for me, but i wanted to fix myself. I was reading some articles etc, few videos and it didnt help me at all.But every each one of your videos is so well made, nicely and easy explained.. Only thank to your videos, i got it all now. I fixed everything i needed. Simple, easy and compared to some services very cheap. Thanks so much. Amazing job, good luck fellas.
I hope you get more and more subscribers. Your channel REALLY is very helpful. Simple yet very effective tutorials. Thank you.
Calvin is the best. Thank you for great tutorials.
Henrich Hostak 
A botch for truing on a bike at 2:50 is to use an adjustable wrench! just make sure the jaws are clean of oils.
It works most of the times, but it sure is not a pleasant process since you are constantly limited by touching spokes because jaws are so wide. Dedicated tool is like $3-4
Calvin Jones, you are the king of bike repairs, thanks!
excellent video as usual.
didn't have the tools he mentioned. just used long nose pliers and a flashlight
whatever fits your budget. i do the occasional work-around, too.
setting the bar this high for videos, also covering any possible situation, Park Tool simply the best👑👑
Very helpful tutorials for a beginner's like me.
@Ian Brown why?
@Ian Brown damn, thanks. I'll be more careful with leaning my disc-brake bike. cheers
very well demonstration，multi angles is awsome
I ever tried putting the rotor on a flat working table , and looked from the side , after spotting the bended area ,I marked and used mallet knocking several times and it worked 🤫
requires disassembly, but sure.. best to use glass as is most flat while has least roughness, which helps as well
Definetely follow Calvins advice...
i use an adjustable wrench to bend rotors. it works like a charm. plus there are thicker rotors out there that dont work with this rotor bending tool
It seems like the ideal thing to have would be a way to have a reference plane of the rotor down by the hub to better determine if a deviation needs to come in or out at the braking surface.
Wow i saw all videos of your park tool its fully awsome it is very useful for me thank u so much
oh man Park Tool.. another Dynamite video... well explained and great to watch.... thanks
has a mustache , i trust him
i bet if he gave you candy, you'd jump into the van
How do I distinguish whether it is the wheel or disc that needs truing? I put together a new Walmart Hyper Ebike with 700c wheels and mechanical brakes. You can hear the disc rub, but you can also see the wheel wobble. At first RUclips convinced me I have to true by going spoke to spoke, but I hadn't even thought of the disc being the culprit until I saw your video.
Using a runout gauge seems very precise!
Tnx so much calvin, have a good day
This guy clearly know his stuff. I hope I can send my bike for him to repair
The point is to do it yourself using the tools you buy from them
Your bike will be returned with a quality control sheet signed by Calvin
Some of the best videos on RUclips by a mile very professional
Perfektně, profesionálně zpracovaná videa! Díky!
Really very helpful Park Tools 👍🏽
Fantastic tutorials! Wish the search algorithm displayed Park Tool videos before SickBike garbage.
That was super helpful. I've spent hours making a rotor seemingly worse. I'm going to try to use the trick of sharpie numbering and I have the park truing stand and the rotor truing tool
with those tools, i spent even more hours to make it worse.. i hate rotors.
This was a majorly helpful video. I can do this!
Thanks again Calvin.
A small or medium size adjustable wrench is a good alternative for the Park Tool DT-2C Rotor Truing Fork.
Calvin, is the swamy of bike repairs...always good videos. 👍
that's like me trueing my 4 jaw chuck on my lathe , a little at a time , Great vid ,
Rob NSW Australia
I tried all methods on my Shimano saint brakes with Hope Floating rotor and red Gaffer pads. First I tried to straighten the rotor by looking straight down at it. This worked rather well actually. I had just done service to the fork so the caliper was not in place. Once I was satisfied with how straight it looked, I braked with the lever and fastened the caliper in that position. This helped a lot, but.I still had some minor rubbing here and there. I couldn't be certain of which direction, even when I looked inside the caliper, so I just chanced it and straightened it in any direction. If the rubbing got worse I straightened it in the other direction. Lil' bit'll do ya!
I find that the two piece floating rotors tend to wander a bit and cause a small amount of rubbing. Not a big deal. Just a lil noise.
@@parktool Thanks for the input, and you may be right. I have even had to straighten the Hope vented rotors, even though Park tools doesn't make the tool for such a big rotor.
I just wanted to mix and match saint and hope parts to reduce the on and off feel of the saints. But after trying it today, the saints are too darn powerful to not have quite a lot of on off feel still. Could be the saint levers that pushes too much oil at once. I can try with XT levers and see how that feels. The Hope Tech 3 levers should be mounted on a harley davidson, being quite big and slow 2-finger levers. Hope uses DOT 4/5.1 and cant be mixed with shimanos mineral oil sadly.
What size rotors are you using? I find that sometimes one step down in rotor size can gain quite a bit of modulation, if you are willing to give up some power and heat dissipation.
@@parktool I weigh 110kg/242Ibs geared up. I can feel when a brake is to weak to stop me. :P This is the reason why I started modding my brakes in the first place. Even new Shimano XTs on 180mm rotors are to weak for my fat bottom. Now I use 203mm rotors exclusively with Saint or Hope V4, and sometimes a bit of both.
@@rewind9536 my friend is 115kg and he uses xt they are they powerful!
Wow that dial indicator is awesome!
How do you know when to replace a worn out rotor? I don't mean bent, I mean like it gets used up. (If that's the case at all)
Each manufacturer has their own wear specifications. However, if you can see that the rotor thickness at the braking surface is different from the rotor arm thickness, it likely needs replacement. - Calvin
Park Tool Awesome! Thanks Calvin
~10:30 "If the rotor doesnt improve in a few minutes ... " Calvin over-estimates my mechanical speed :P Thanks for the great video as always!
These videos are incredible. Thank you so much ... I’m buying all the stuff !
This was super therapeutic.
yes... good info... nice presentasion...
Great video thanks Calvin
life saving as usual
Nice presentation and easy to understand...
Thank you
This is extremely helpful. Thank you! 👌
Awesome video.. sucks that both of my new RT86 rotors are warped causing actual wheel slow down.. I bought the park tool bendy tool but have a Bike Hand truing stand so probably do on bike ..
Amazing tools, great info!
It easy wend you have a good tool ! Thanks for video ! Regards !
I would never a tool for that, and i´ve done it thousands off times the past 30 years.
How to use dt-3 tool without truing stand!?? Tnx parktool....
If you sight the gaps on either side of the rotor in between the brake calipers you can true a rotor very well.
Very Very helpfull! THANKS A LOT!!
Can i use needle nosed pliersinstead of the mtb3.2 3:30
Calvin should be brand manager
Nice one very helpful
Isso que eu chamo de serviço bem feito!
Hey Calvin! How is it that you got so warped and is there a tool for that?
u can do the alignment laying down the disc to smooth heavy metal then place a piece of wood 1x2 on top of the disc and try pounding it with a rubber hammer but not so hard, start with a light pounding going harder and harder as you examine the improvement.
It would be surprising if that worked, as it is hard to check the small tolerances needed against a flat surface. However, there is only one way to find out. The worst thing that will happen is you end up buying a new rotor.
I'm thinking about installing a disk brake on my brake calipers bicycle but a didn't find any good video about it. Any recommendations? Thanks in advance!
Our series on disc brakes is still in the works at this time.
eu tava esperando esse vídeo, era umas das coisas que faltavam!
how about a bent axle on a freewheel? does it affect the rotor going back and forth?
1:43 Is that black "nut" cracked on bearing plate hub?
Thats just a hair. No fun cracks to deal with unfortunately.
Hey, is rubbing alcohol good for cleaning disc rotors?
Yes, it works fine.
Park Tool ok thanks!
Would heating the rotor help at all?
No, that will not help with alignment.
Can this be done in local bike shop? Or can it cause some long term damage?
Never had the need to retrue my hope V4 vented rotors... 😎
Nice one 👍 👌 👏 😀
Where can I get that wheel aligner?
Any tips of getting brand new M8120 Shimano 4piston XT brake pads to not rattle ?? Driving me nuts..
I have the same brakes and am dealing with the same issue. Will keep you posted on the solution. As of now increased spring tension and added a bit of protective tape where the fins meet the caliper body.
@@parktool lol yeah there are tons of forum threads on it but best advice was wait till they get full of brake dust. I have 2 other bikes with single pistons and the pads are def tighter in the caliper. I was thinking about either cutting and apply strips of gorilla tape or applying liquid electric tape (liquid rubber). I talked to 2 bike shop techs in passing, they thought I was crazy...it is driving me nuts..
@@parktool what tape did you use? Protective frame tape? I just don't want anything to heat up and get sticky..
How do you determine the starting point of the DT 3. I see how u started here but what if the rotor was bent in not out to start with? The DT 3 obviously can't mount going thru the spokes?
The starting point is the largest deviation as that will touch the indicator first.
@@parktool thanks for the response. more specifically i meant. what if the entire rotor is coned inward and the entire rotor only needs to come back out away from the bike? then the tool wouldnt touch it anywhere.
This is not going to help you repair a cone shaped rotor. This will help true a rotor that is not straight.
Loved the hotdog!!
Nice
बेहतर है ब्रदर बेहतर
wow youre the man!
good
Apologies for chiming in but I don't know who else could give me reliable advice. I recently bought - not yet installed - a Deda Elementi 120mm stem (model: Superzero), which has a clamp height of 36mm instead of the usual 40 or 41mm. Will the reduced contact area between stem and carbon steerer tube (Cannondale SuperSix Evo) potentially endanger the integrity of the carbon steerer tube? Thank you in advance for your reply.
A big fat negative. The steering tube is not made by paper, just don't over tighten it.
How does it bends?
Calvin help i got DX 700 Shimano brakes the top are normal to bleed the bottom i cant find a bleed port only a allen key screw near brake barrel no nipple no rubber seal hiding one ? Need to push pads apart to align and bleed ! no nipple HELP PLEASE !
Hello Oleg, I am not familiar with the DX700 (cant find any literature on Shimano's tech site for them or anywhere online). Typically the Shimano calipers that have a small hex key and then a flush rubber cover over a port that is cast into the caliper body or there is no rubber cover but there is a port, require you to hook up your bleed syringe hose to that cast in port, then loosen the small hex key to open up the flow of mineral oil. The port may be at a downward angle making it hard to see. An image to tech@parktool.com would be help. Thanks, T.
Sorry their DX D-700 My eye,s at 50 are not what they used to be !
Great tools.👍
thanks
Sram x7 or slx set? Which one suggest?
My new bike from big box came with the front rotor vented. It is cheaper and faster just to buy a new one?. Thanks.
An inexpensive one is great to practice on. Give it a shot straightening and then you have a little more knowledge. Then if you cannot get the rotor straight or it is not going well, then replace the rotor. Many rotors are slightly bent from the factory and need to be fine tuned. I find this to be true at any price point for rotors.
Park Tool Thankssss. I will watch this video again. You are my source for my new hobby. A lot to learn here.
Your a Pro!!!
Can i use a cresent wrench?
that's what I use and it does the job done just make sure it's not contaminated with oil or grease
you guys know how to make a video. Long live Hollywood
We're actually based in Saint Paul, Minnesota, but we'll take the compliment!
if it was Hollywood, Sam Elliot would play Calvin.
Just wondering who would put their sausage close to a running disk brake.....if you know what I mean ;)
Underrated comment
better question is... who wouldn't?
I'm still waiting a kit that have every single product of park tool
PascalGame indonesia lmao they have thousands of tools
Benotto México oficial page has one, it's named park tool master kit.
The tool which Calvin uses for this video is really expensive man and I think that it is not worthy enough to buy.i fixed my disc brake (mechanical) with an adjustable wrench😏.but I should appreciate him for the wonderful tutorial
Hanok Deleep that’s should also work!
I've used an adjustable wrench before, however now have the DT-2. Mainly got it as a birthday gift from my sister, however the longer slot on it is probably slightly better for adjustment than the shorter jaws of a wrench.
Looks Fun.
Dump the QR... use thru bolt or thru axle less rotor bending
This guy is great no doubt about it. Well spoken and super mustachy hehe And i understand that they promote the tool they sell. But a special tool to fix bent rotors? Unless I'm missing something why in the hell pay for that when plyers will do the job? Park tools are great I am sur of it but also waaaay pricy But then again everything in the MTB niche market is overpriced so can't blame them
cheaper to take the bus then.
pliers open on a hinge, so it's hard to hold the caliper steady and not grip it too tight, marring up the surface in the process.
They can work in a pinch, but if you do your own maintenance (or use hydralic brakes) then getting the tool will save you a bit of a headache. Some brake rotors for downhill bikes are very expensive, and I'd hate to scratch a rotor that cost more then the brand new hybrid bike sitting in my kitchen.
Would it be possible to just put it under an hydraulic press if possible? I mean would it mess it up?
It would not mess it up but as metal has a memory it would just spring back. You need to bend it past where you want to to be to actually make a permanent bend.
Everyone's already bitchin about how expensive park tool is - and you want them to go out and buy a hydraulic press? Should have recommended a Tesla car then.
isn't the dt-3 scratching the rotor while you are measuring it?
No need to worry about scratching your rotor. That being said the tip of the DT-3 is rounded so it does not scratch the rotor. People often use sand paper or Emory cloth to rough up and scratch their rotor to de glaze it so it stops making noise. So, Scratches are not a bad thing for rotors.
@@parktool ok thanks for the reply
0:55 for a moment i thought that was his finger lol
Won't bending it with plier cause cracks and terrible crash?
The steel is rather malleable and does not crack. It is not always successful to align these, but terrible crashes have not seemed to be an issue.
What giant wheels are they
I love this guy. He explains so clearly and comprehensible. And don’t ever shave away that mustache :-)
What is the name of that rotor on the thumnail
That is a SRAM Centerline rotor.
Is this tutorial video or advertisement for your products or both?
Well, they obviously sell tools, you moron. How are they supposed to make money being a tool company? You really didn't think your comment through did you? Not to mention you get a free tutorial on how to use the tools and fix your bikes you selfish ungrateful narcissistic prick.
Have a nice day :)