Knocking sound whilst braking - Triumph Forum: Triumph Rat Motorcycle Forums
Air Cooled Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, Bobber, T100, Speedmaster, America, Thruxton, and Scrambler.


Sponsored by: Triumph Twin Power Ltd

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 11-20-2012, 06:44 AM Thread Starter
Member
Grand Prix 250
Main Motorcycle: Thruxton/Daytona 675R
 
ThruxOZ's Avatar
 
Join Date: Nov 2012
Location: Melbourne
Posts: 47
Extra Motorcycle: Yz250f
Knocking sound whilst braking

Hello all
Been experiencing knocking noise whilst braking hard.
Not a once off per braking application,but a continual knock whilst braking.
It's like it may be the disc moving on the washers as mine has a floating disc.
Anyone else experienced this?
ThruxOZ is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 11-20-2012, 06:53 AM
Senior Member
SuperStock
Main Motorcycle: Bonneville
 
Join Date: Feb 2012
Location: St Albans,UK
Posts: 201
Other Motorcycle: Vespa PX200
Extra Motorcycle: Kawasaki GTR and Sidecar
Quote:
Originally Posted by ThruxOZ View Post
Hello all
Been experiencing knocking noise whilst braking hard.
Not a once off per braking application,but a continual knock whilst braking.
It's like it may be the disc moving on the washers as mine has a floating disc.
Anyone else experienced this?
Hello

Loose caliper bolt or missing anti rattle spring, if front brake may be steering bearings loose?

My guess's.

Barry
threewheelsuk is offline  
post #3 of 14 (permalink) Old 11-20-2012, 06:58 AM Thread Starter
Member
Grand Prix 250
Main Motorcycle: Thruxton/Daytona 675R
 
ThruxOZ's Avatar
 
Join Date: Nov 2012
Location: Melbourne
Posts: 47
Extra Motorcycle: Yz250f
Hi
Have checked caliper bolts & slides all nice and secure.
It's like pad knock but anti rattle retainer is in place
ThruxOZ is offline  
post #4 of 14 (permalink) Old 11-20-2012, 10:18 AM
Lifetime Premium
Site Supporter
World SuperBike
Main Motorcycle: 2007 bonnie black
 
killian101's Avatar
 
Join Date: Sep 2007
Location: Whittier CA
Posts: 1,994
Other Motorcycle: 68 BSA (RIP)
remove your front sprocket cover, check the nut. It maybe loose. At least, that was my experience
killian101 is offline  
post #5 of 14 (permalink) Old 11-20-2012, 09:42 PM
Member
Grand Prix 250
Main Motorcycle: 2013 Bonneville
 
Checkered's Avatar
 
Join Date: Jul 2008
Location: Australia
Posts: 77
Other Motorcycle: Aprilia Scarabeo 200
Check the clearance between the caliper bolts and the disc. My last service the techos were a bit concerned about the clearance on my America,and removed the bolts and ground them down !
Checkered is offline  
post #6 of 14 (permalink) Old 11-21-2012, 03:42 PM
Senior Member
Formula Extreme
Main Motorcycle: Thruxton 04
 
Join Date: Nov 2010
Location: Woodbury, Devon
Posts: 442
Other Motorcycle: Ariel VHA Special
Extra Motorcycle: Honda Pan European ST1300
Have you checked the Disc....Inspect closely it may be some Crud! in one of the holes in the disc inspect for any imperfections like a crack spin the wheel and see if the disc is warped or any of the above........
T.U.D.
tonupdave is offline  
post #7 of 14 (permalink) Old 11-22-2012, 07:20 AM Thread Starter
Member
Grand Prix 250
Main Motorcycle: Thruxton/Daytona 675R
 
ThruxOZ's Avatar
 
Join Date: Nov 2012
Location: Melbourne
Posts: 47
Extra Motorcycle: Yz250f
Hi thanks for all your replies thus far
I have inspected closely for clearance, the noise only appears once the brakes have been heat cycled several times.Once brake temp is up,it only occurs under heavy braking.Ive checked disc once up to temp and have found a fair bit of movement between disc and inner section.
I suppose the rivets have worn on the disc
ThruxOZ is offline  
post #8 of 14 (permalink) Old 11-22-2012, 05:37 PM
Senior Member
SuperBike
Main Motorcycle: 2003 Triumph T100
 
Sheepdog's Avatar
 
Join Date: Nov 2005
Location: Waldheim, LA
Posts: 1,408
Other Motorcycle: 2007 M-G Cali Vintage
I put an EBC floating disc on the front of my T100 and it makes a bit of noise...but not a knocking sound. Its more insectoid...like cicadas. Maybe its a fork issue. Check your preload adjusters and your fork oil levels.

2003 Bonneville T100 and 2007 Moto Guzzi California Vintage

Last edited by Sheepdog; 11-22-2012 at 05:39 PM.
Sheepdog is offline  
post #9 of 14 (permalink) Old 11-22-2012, 05:50 PM
Senior Member
Powerbike
Main Motorcycle: 2012 bonneville T100
 
Choprocker's Avatar
 
Join Date: Apr 2011
Location: London, England
Posts: 363
is it def a knocking?
could be just where the holes in disc connect with brake pad when braking
Choprocker is offline  
post #10 of 14 (permalink) Old 11-23-2012, 05:35 PM
Senior Member
World SuperBike
Main Motorcycle: Thruxton
 
plodalong's Avatar
 
Join Date: May 2009
Location: Griffith NSW Australia
Posts: 1,844
Other Motorcycle: 08 Bonneville efi
Garage
Mine does it when on the brakes over bumps. Not all the time and usally around town, can't say that I've noticed it at speed. Not sure if it's the brake or the forks. Was doing it the other day on the way home from work, said to myself that I'll check that out this weekend, but the other bike needs new tyres fitted 1st.

07 thrux,breathe,Dna airfilter,airbox X restrictor,135 mains,tp +3 ignitor,yss emulators,hp springs, Bitubo shocks,pingle steering damper,D9 layflat,3" rise clipons,corbin seat, tt350 taillight,alloy indicators.shorai battery,Changes daily
plodalong is online now  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options
All posts must adhere to Forum Rules

Register Now



In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Knocking sound from rear hub tubbyhubby Sprint Forum 30 07-03-2013 04:53 AM
Knocking sound in 1st gear DanR Air Cooled Twins Talk 23 05-17-2012 05:34 PM
knocking sound up by the front sprocket killian101 Air Cooled Twins Technical Talk 7 03-28-2012 02:41 PM
Unusual knocking during braking hinkleyozzy Speed Triple Forum 17 09-25-2010 03:20 AM
help knocking/tapping sound :( Treehugger Triumph SuperSports 17 07-18-2005 11:47 AM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome