56. How to Straighten a Bent Disc Brake Rotor
Learn how to easily straighten a bent disc brake rotor.
50% of the cost of the bicycle featured in this video was donated by JensonUSA.
In this tutorial we will learn how to straighten a bent disc brake rotor.
For this job you will need a zip tie and wire cutters, and a disc truing tool or an adjustable wrench for straightening the disc.
The first step is to fasten a zip tie around the frame or fork, and cut the end about 1 cm away so that it lines up close to the disc. Position the cut end of the zip tie close to the disc so you can use it as a makeshift gauge and easily tell where and by how much the disc is bent.
Using your truing tool or adjustable wrench carefully bend the disc a little bit at a time. Be careful not to bend it too much either way. Rotate the disc to check for true and then repeat as needed until the disc is as straight as possible. You likely won't be able to get the disc perfectly straight, but using this method it should still be ridable. If the disc is too bent it'll need replacing.
I am having trouble adjusting some cross top / interrupter brakes on my cross bike. The brakes are Avid BB 7's. The trouble I am having is when the cross top lever is tensioned how I like it the main lever is soft. When I tighten the main lever to how I like it the cross top is way to tight. Is this due to different pull ratios of the lever styles or am I missing something? Ideally I would have both levers at even tension. Any suggestions appreciated!
Thanks... Read more >>
so I ordered a set of m615 brakes, I think, and i'm gonna go 180m on the front. I think I need an adapter but don't know which. anybody help out there? pictures are nice. thanks.... Read more >>
Today I replaced a shimano hangar and straddle wire brake assembly cable and sheath and was successful. What I would like to see now is a video on adjusting these type of brakes, my favorite brakes btw, to see if I missed any short cuts. I googled for a video but couldn't find one. Anyone have URL for a video on this repair?... Read more >>
H i wonder if someone could help me find out what this noise from my back brake is
a bubble type water liquid sound only under hard breaking its quite annoying front brake is fine
here is the same sound on youtube from someone else but no answer to the problem my brakes are
Tektro Gemi i no they are entry level should not make this sound any help thanks
youtube brake noise clip link
https://www.youtube.com/watch?v=4F8Ugg-i4-s... Read more >>
I am converting a MTB with 26" wheels to 700c. I live in the UK and do not go off road, but would like a bike to ride on canal tow paths (some of which can be a "little rough". All is OK, have swooped out the front forks to a rigid type (with the correct bosses for mounting a V brake onto a 700c wheel) - but....i would prefer too fit V brakes on the rear, and the bosses are in the wrong place. I know that Mavic used to do a converter, but cannot find one anywhere. Has anyone else done this? and what did you do?
Many thanks in advance.
Kevan... Read more >>
I'm trying to get an old Cannondale M500 mtb back rolling again. I'm missing the post that screws into the fork on each side and the back seat stay post too, so I can install some v-brakes. I'm not sure what the true name for these post are or where to find them. Anybody know... ??
Thanks... Read more >>
I understand there are 2 types of disc brake pads either sintered (metallic) or resin (organic). I just bought some disc brake pads. How do I tell which type it is when im looking at it?
Thank you... Read more >>
Anyone know the link that's out there for replacing the recessed nut studs on tektros top end sidepull brakes (I did it on the quartz) using tektros lower end sidepull nutted studs. Believe it was a YouTube vid.
Have a friend who wants to do something similar and the link to the video would be far easier than trying to word by word the conversion.... Read more >>
My 90's road bike is working but the brake to the right is loose a little bit (from the brake sleeve or what ever that's called) it's still braking but the cable is trying to come out. How do I fix that?... Read more >>
Simple one for you. I have an Azzurri Tigre which has the gear changers intergrated into the brake levers.
What is this system referred as?
Thanks in advance for the education.
Daniel BACH... Read more >>
hey im having a difficult trying to figure two thing out one is my mountain bike able to have disc brakes and two is it a good idea to switch to disc brakes from vbrakes any help please and im trying to get my two mountain bikes ready for the summer time in georgia so please any words of advise or great tips or suggestions will be glady taken because im at a major confusion im bout to go crazy trying to figure this out... Read more >>
On Wife's ~1970 Gitane Grand Sport Mixte, with Mafac Racer Brakes, at the handlebar brake lever (Safety Brake levers, by the way).....
At the point where the brake cable enters the brake lever, is a cream colored plastic nipple that mates the cable shield to the brake lever assembly.. Not adjustable, just an interface from cable shield to brake assembly.....
The brake assembly does not contain plastic covers, just aluminum metal.
One cracked earlier this year, and I bought two loose pieces that look like this type:
Read more >>
Did a search and didn't see any info on it... have any of you guys ever tried this tool ?
I like the tool... it even sets the proper toe in and adjustment. The only thing I find troubling about it, is the lip on the top of the tool keeps the pads from going high enough on the outside edge of the rim. The pads run closer to the inside edge near the spokes(see pic)(Is this the proper position for the shoes or should it be higher ?) Other than that, it seems to be a great tool.
What do you guys think about it ??... Read more >>
My original set of rear pads prematurely expired due to crooked wear on the outside pad. Upon closer inspection I see the piston extends at an angle, or crooked. This is not how the front brake extends (same model). Anyone know if opening the caliper to address this is possible? Thanks... Read more >>
Gitane Mixte circa 1970 or so.. Trying to find date-codes..
Did they have any?... Read more >>