Vibrating Problem

j1mb0

Hello, I wonderd if someone could help me.

Im having a problem with my Mongoose and to be honest its really really getting on my nervs.

everytime i pull the rear brake a HUGE vibration goes through the bike causing the frame to vibrate resulting in a massive squeel :?

The pads are new and the disc is clean.

What should I do to stop this vibration ??? :?

Any ideas welcome

Thanks
James

ashleymp777

Are the rotor bolts and caliper bolts tightened properly?

j1mb0

Hiya, yes theyre all tight

Anonymous

you say your pads are new have they been bedded in try rubbing some dirt into them so to bed them in also check your quickrelease is done up tight

j1mb0

hey thanks for the quick replys

I have rubbed some dirt into the pads, while theyre in the caliper (there very hard to remove)

and i (think) :?: its squeeling a little less, im going on a 7 mile ride now, planned my rout gona do some heavy braking on some large hills.

Any more ideas ??

ill be back a little later, cya

Thanks
James

nicklouse

why did you rub dirt on your brakes?

it causes more problems that it cures.

What are the brakes.

what did you use to clean the rotor before fitting the new pads?

papasmurf.

yeah if its a new bike..then bed your brakes in..a number of sharpe stops from a decent tilt. if you still got he problem..then also post up what make and model your brakes are.

Old Git On A Bike

@ j1mb0, I have been looking at the Mongoose Tyax Super 08 for £359, and see you have the same bike, but rather than start a new topic about it, what I wanted to know is, how much does the bike weigh, I can't find the weight details anywhere online, cheers.

benneally

you may have sintered your pads? Try running some sand paper over them and on the leading edge of the ceramic....worked for me!

j1mb0

nicklouse
The brakes are Promax Q3's

The brakes were cleaned with alcahol same with the front and the front is perfectly fine

papasmurf. wrote:

yeah if its a new bike..then bed your brakes in..a number of sharpe stops from a decent tilt. if you still got he problem..then also post up what make and model your brakes are.

Promax Q3's uses the same pads as the Avid Juiceys, i assume bedding brakes in is cycleing arround with the brakes on ?

Old Git On A Bike wrote:

@ j1mb0, I have been looking at the Mongoose Tyax Super 08 for £359, and see you have the same bike, but rather than start a new topic about it, what I wanted to know is, how much does the bike weigh, I can't find the weight details anywhere online, cheers.

Hey its light enough to pick up with 1 hand and im on the skinny side, sorry i dont have any scales

benneally wrote:

you may have sintered your pads? Try running some sand paper over them and on the leading edge of the ceramic....worked for me!

I just tryed rubbing them down lightly but i cant get the pads out!!!!!! Its made it worse

How much would I have to rub them down ??

I HATE THESE PADS!!!!!!! :!:

All the time i hear people say, oh just simply pop the pads out.. SIMPLY ,, ok guys theres no way these pads are coming out without bending the metal spring in the middle am i doing somthing wrong? hmmm :evil: :roll:

Thanks
James

nicklouse

beding in is NOT riding around dragging the brake. the best way is to just get out there and ride the bike.

have a look at the juicy manual as it shows easily how to remove the pads.

j1mb0

nicklouse wrote:

beding in is NOT riding around dragging the brake. the best way is to just get out there and ride the bike.

have a look at the juicy manual as it shows easily how to remove the pads.

The brake pads are NOT budging. Ive read the manual and its the way i have been trying to remove them, the caliper is too small to allow the pads out without damaging
:twisted:

ANDYMACCA

it runs great and so do the brakes