wierd sound/feel when using back break

[MadGelo]

Hello,

Every time I start using back break after riding a while, I hear like a snapping sound and feel as if it was stuck a little and came lose.

any one know anything?

thank you

 

[Mtpete]

Hello,

Every time I start using back break after riding a while, I hear like a snapping sound and feel as if it was stuck a little and came lose.

any one know anything?

thank you

Have you recently removed your rear tyre? If so make sure the rear calliper is slotted in to the grove on the inside of the swing arm, otherwise it can rotate then when u brake it snaps against the stop.

 

[stevecbr]

Maybe you had a small stone stuck in the calipers? I would check your rear disc for scoring, which would indicate if something was trapped there

 

[MadGelo]

Thank you for the swift replies


Havnt had my rear tire removed since iv got the bike.
Not sure what grove you mean, nothing seem to move, least by hand.


Looked at rear disc, looks fine from here




I gues Ill have to put the bike on rearwheel stand and see if i can reproduce the issue, while running .

 

[flydnb]

is it an abs model.?

 

[Mtpete]

Thank you for the swift replies


Havnt had my rear tire removed since iv got the bike.
Not sure what grove you mean, nothing seem to move, least by hand.


Looked at rear disc, looks fine from here




I gues Ill have to put the bike on rearwheel stand and see if i can reproduce the issue, while running .

The grove that I'm talking about is two rectangles on the inside of the swing arm that the brake calliper slides into to stop it moving, it can be hard to see you have to get up real close and you will see.

 

[MadGelo]

is it an abs model.?

Yes.

But its not ABS kicking in, if that is what you mean,as the sound/feel is at the beginning of me pressing it

 

[My Toy]

I'd guess it's the pads moving slightly in the calliper. I get a knock on the front if I have used the brake to stop the bike whilst wheeling it backwards causing the pads to go in the opposite direction against the normal direction of movement if that makes sense. Then when I put the brake on going forwards I get the knock as the pads settle back to the position they are normally in when braking. The same can apply to the rear brake if for example you use the brake to hold the bike on a hill before setting off. A small amount of clearance between the pads and the calliper is necessary so that the pads can move ever so slightly sideways when the brake is applied and released.


Sent from my iPad using Tapatalk

 

[billygatso]

I think I would remove the pads, give the calliper a clean and reassemble with a little copperslip on the pins. Could just be a build up of brake dust and crud stopping the calliper operating smoothly.

 

[MadGelo]

Thanks, gonna take a look at it

just to add, it sounds and feels like a string gets stuck and released....or something arg..gonna take apart and see if it helps