Wisper Brand New Wisper 705se Grinding Brakes
- Thread starter 01wellsd
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- brakes grinding noise wisper
They’ve all got their own little quirks!Fair enough, it doesn't look right to me..
That arrow is on the caliper. Look at what the caliper is attached to, that is what I believe is what wheeliepete meant, I do believe.
The mounting adapter ! A strong possibility....
I would not have noticed, he must have eyes like a Hawk!
regards
Andy
Nope, that arrow is definitely on the carrier.
The caliper is mounted to it behind the washers
Is the marking possibly misleading? Does the Disk Pad cover the right area on the disk?
Just a thought.
Andy
UPDATE!!
today I fitted a floating rotor. The noise has stopped! No idea why I just hope it stays that way!
today I fitted a floating rotor. The noise has stopped! No idea why I just hope it stays that way!
Did you try unbolting the caliper tie it up and see if the noise went away ?New Update (For anyone who still cares!)
The grinding noise from the front brakes is back, so I'm thinking it is more than just a rotor.
Time to let David and Claude from Wisper take over!
Also did you check the rotor wasn't rubbing the inside of the fork ?
Watching the short video's we can only guess, it's so much harder when the bike is not in front of you to diagnose.
I checked that the rotor wasn't touching any part of the bike (fork or calliper) but only whilst on a repair stand. Is it possible that with a riders weight on it, and the force exerted by braking, the forks could be flexing a little and causing the rotor to touch somewhere?
When on the stand the noise isn't apparent.
Upon first setting off, when the brakes are cold, the noise is almost non existent, when they reach normal operating temperature it comes back, and when going down a large hill (hot brakes!) it goes again until they cool off a bit. Then when getting back home you can make the noise happen as I did in the videos by pushing the bike (until they have cooled again.)
Thanks for taking the time to try and help, and I do appreciate that its difficult without physically seeing it.
I used to work for Audi and the amount of times I was asked to diagnose somebody's car over the phone was unbelievable! It was always followed by "well why don't you know what's wrong with it!"
Hi David.
I'm good thanks, how are you and the team?
The last I heard was that Adrian was sending out a new rotor and set of pads.
He believed that the brakes may not have been set up properly by the dealer.
I am a little sceptical as I have put new pads and a rotor on myself, then had the brakes set up by my local bike shop and the noise still came back after some distance.
Cheers,
Dan
Hi Dan, please keep me in the loop on this, it may mean the anchor points on the forks were not properly faced. If that's the case we will need to get the bike into the dealer so this work can be done.
All the best, David
I have just had a new set of brake components delivered from Wisper (front and rear discs and pads)
Thank you for David and the guys for sorting that out.
Is there anything I should be doing before fitting them? I’m fine with doing car brakes, but not sure if there is anything different when it comes to bikes
Thank you for David and the guys for sorting that out.
Is there anything I should be doing before fitting them? I’m fine with doing car brakes, but not sure if there is anything different when it comes to bikes
Hi, it’s pretty straightforward but if you need assistance please call Claud on Monday, please say I asked you to call.
Two pointers
1. Never pull on the brake lever until they have been fitted with the disc between the pads.
2. The disc should sit in the middle and completely parallel to the pads. If they are at an angle to the pads the brakes will not be effective and you will wear the pads very quickly. This will also cause the “graunching” noise.
All the best, David
Once fitted loosen off the calliper bolts a half turn or until the calliper is just loose, apply the brake to centralise/align the pads to the disc. Tighten calliper bolts and release the brake.
I've had that problem several times, always with those wavy discs. I build a bike, then find that the waves touch the top of the caliper. I solve it either with a different caliper adaptor, inverting the adaptor or by using washers as spacers. If it's close, it comes back when you use the brake because the disc heats up and expands, so is able to touch again.
What's weird is that it's only this one that's doing it and not all the other 705SEs. Also, how was it OK for a hundred miles, then started touching. The disc can't grow by itself, neither can the caliper mysteriously move closer to the disc by itself.
Did anybody check another 705SE to see the difference. Hello! This is an older model with side-mount caliper, but look at the adaptor. Maybe time to check a stock one.
What's weird is that it's only this one that's doing it and not all the other 705SEs. Also, how was it OK for a hundred miles, then started touching. The disc can't grow by itself, neither can the caliper mysteriously move closer to the disc by itself.
Did anybody check another 705SE to see the difference. Hello! This is an older model with side-mount caliper, but look at the adaptor. Maybe time to check a stock one.
Last edited:
UPDATE
New discs and pads fitted, supplied by Wisper. So far after about 30 miles, all sounds like it did when the bike was first delivered.
Many thanks to David and the team who looked after me
New discs and pads fitted, supplied by Wisper. So far after about 30 miles, all sounds like it did when the bike was first delivered.
Many thanks to David and the team who looked after me
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