Squeaky disc brake
#1
Junior Member
Thread Starter
Join Date: May 2014
Location: YOKOSUKA,JAPAN
Posts: 13
Bikes: 2013 FUJI STRATOS R, 2014 BAD BOY COMMUTERR
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Squeaky disc brake
I won a bad boy commuter and the disc brakes squeak like crazy. Is there anything I can do to fix it thank you
#2
Senior Member
Join Date: May 2013
Location: Kips Bay, NY
Posts: 2,212
Bikes: Ritchey Swiss Cross | Teesdale Kona Hot | Haro Extreme | Specialized Stumpjumper Comp | Cannondale F1000 | Shogun 1000 | Cannondale M500 | Norco Charger | Marin Muirwoods 29er | Shogun Kaze | Breezer Lightning
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 576 Post(s)
Liked 1,003 Times
in
488 Posts
Maybe you got some grease or other impurity on the rotors or the pads. Remove pads and clean them, clean rotors.
Break in your brakes by repeated hard braking. Get that temperature up
Break in your brakes by repeated hard braking. Get that temperature up
#3
Full Member
Nice. You could win a lot worse than that.
Specifically, what brakes does that bike come with? Oh, and by the way, with an ALU bike and a straight blade ALU fork, I'd be stuffing the fattest tires I could on that bad boy (no pun intended) just to take the edge off.
Never mind. Looked it up. I don't know anything about these.
BRAKE
SHIMANO M375 MECHANICAL DISC
Specifically, what brakes does that bike come with? Oh, and by the way, with an ALU bike and a straight blade ALU fork, I'd be stuffing the fattest tires I could on that bad boy (no pun intended) just to take the edge off.
Never mind. Looked it up. I don't know anything about these.
BRAKE
SHIMANO M375 MECHANICAL DISC
Last edited by syncro87; 06-07-14 at 07:37 AM.
#4
DancesWithSUVs
Join Date: Apr 2005
Location: Griffin Cycle Bethesda,MD
Posts: 6,983
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Which model? Mechanical(cable) or hydraulics?
Cleaning and trueing the rotors will usually cure noises. If the brakes are hydros,the calipers may need centering.
Cleaning and trueing the rotors will usually cure noises. If the brakes are hydros,the calipers may need centering.
__________________
C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport,Dahon Speed Pro TT,Brompton S6L/S2E-X
C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport,Dahon Speed Pro TT,Brompton S6L/S2E-X
#6
Senior Member
Join Date: Sep 2012
Location: NW Arkansas, USA
Posts: 1,031
Bikes: 2015 Giant Roam 2 Hybrid
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 91 Post(s)
Likes: 0
Liked 6 Times
in
4 Posts
As others have noted clean the discs, you can use a degreaser or alcohol. I am almost ashamed to mention it but I use a pressure washer, I get a lot of dirt on my silver bike and use it to clean it off, blasting the rotors has always quieted them for me. Also clean the pads. If they're soaked with contaminants then they would need replacing.
Finally an adjustment might be in order. How varies a little with the brand but most require you to loosen the bolts that hold the caliper onto the mount just slightly, this is usually different than the bolts that hold the entire assembly to the frame, then rotate the wheel and mash the brake lever to center the caliper, then carefully re-tighten the bolts with the lever tightly pressed. After that reseat them by mashing them hard while riding, the harder, quicker and for longer you do it the better but be careful with the front ones so you don't go sailing over the handlebars.
Finally an adjustment might be in order. How varies a little with the brand but most require you to loosen the bolts that hold the caliper onto the mount just slightly, this is usually different than the bolts that hold the entire assembly to the frame, then rotate the wheel and mash the brake lever to center the caliper, then carefully re-tighten the bolts with the lever tightly pressed. After that reseat them by mashing them hard while riding, the harder, quicker and for longer you do it the better but be careful with the front ones so you don't go sailing over the handlebars.
Last edited by Rootman; 06-07-14 at 08:41 PM.
#7
Junior Member
Thread Starter
Join Date: May 2014
Location: YOKOSUKA,JAPAN
Posts: 13
Bikes: 2013 FUJI STRATOS R, 2014 BAD BOY COMMUTERR
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
thank you for the help. I used brake cleaner and it works like a champ
#8
Senior Member
Join Date: Feb 2014
Location: Cabot, Arkansas
Posts: 1,538
Bikes: Lynskey Twisted Helix Di2 Ti, 1987 Orbea steel single speed/fixie, Orbea Avant M30, Trek Fuel EX9.8 29, Trek Madone 5 series, Specialized Epic Carbon Comp 29er, Trek 7.1F
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
My brakes squealed on a new bike and I had to break them in with a few high speed hards stops. They never squealed again.
#9
Senior Member
Join Date: Sep 2012
Location: Motor City
Posts: 262
Bikes: 2012 Giant Escape, 199? Specialized HardRock
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 40 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
The only advice I can give is make sure your wheel bearings are properly greased and adjusted. My rim brakes were squeaking badly and over the winter I bought the cone wrenches and Park grease, went ahead and cleaned, regreased and carefully adjusted the cones to make sure there was no play and no more squeaky brakes!
Thread
Thread Starter
Forum
Replies
Last Post
RoadTire
Bicycle Mechanics
10
12-18-14 06:09 PM