Hello guys,,
I am really struggling with the vibrations of the front while light braking.
I really don't know what to do next.
Current status Corsaro veloce 2K18, 23xxx km driven
1. Already swapped old rotors for a new rotors NBC brand + new SBS pads -> no change
- Checked everything is tight, diassembled fron calipers, cleared, new fluid-> no impact
2. Bought another set of the different rotors -> no impact, still vibrations
3. Diassembled complete front end. Changed the old ball bearings for the new set of the tapered roller bearings. ->no impact.
The front end is still vibrating while light braking. When I heavily brake, it stops.
I really do not know what to focuse anymore, but it is so flustrating.
There is no play inside of the forks.
Can you guys please advice what could I focuse on?
I have no idea anymore, my knowledge ends here....
I really do not have any joy from the riding anymore...
Thanks
Front end vibrations!!!
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- Posts: 2
- Joined: 12 Jul 2023 17:04
- Location: Luka nad Jihlavou
Re: Front end vibrations!!!
Exasperating!
This thread may be worth a look even though about a Triumph. Note mention of the wheel hub itself possibly being not 'true'.
https://www.triumphrat.net/threads/brak ... th.974701/
This thread may be worth a look even though about a Triumph. Note mention of the wheel hub itself possibly being not 'true'.
https://www.triumphrat.net/threads/brak ... th.974701/
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- Posts: 73
- Joined: 05 Oct 2017 14:07
- Location: Upton Wirral
Re: Front end vibrations!!!
Have you checked the wheel bearings?
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- Joined: 22 Nov 2008 17:41
- Location: Even further oop North
Re: Front end vibrations!!!
As the discs are floating did you replace the centres as well as the outer disc? The bobbins may be worn?
Re: Front end vibrations!!!
The bobbins were so worn on my Gilera Saturno front disc that you could hear them rattling but no brake pulsing. I was able to replace the bobbins. The 'carrier' might be slightly warped I suppose. I see 'PFM' sell a carrier separately (for 05-09 models anyway).MickeyMoto wrote: ↑13 Dec 2023 19:18 As the discs are floating did you replace the centres as well as the outer disc? The bobbins may be worn?
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- Posts: 2
- Joined: 12 Jul 2023 17:04
- Location: Luka nad Jihlavou
Re: Front end vibrations!!!
Hmm I did not check bearings, didn't have a reason for that. No racks or noise from inside, spins freely. I have a magnesium rims.
I have changed complete discs including bobbins.
Before instaling a set of new discs, I measured side runout of the wheel hub itself and i was up to 0,03mm.
Contact surfaces were clean.
So i guess my next steps will be:
1. Dismantle calipers and check them again.
2. Buy a new wheel bearings, but my bikes has 23K km so I really don't see a reason for that.
3. Measure each part separately, disc, bobbins, wheel hub for runout.
4. Check once more steering neck bearings, if it is tight enough, but I used same 30 Nm torque as always for tappered bearings.
I have changed complete discs including bobbins.
Before instaling a set of new discs, I measured side runout of the wheel hub itself and i was up to 0,03mm.
Contact surfaces were clean.
So i guess my next steps will be:
1. Dismantle calipers and check them again.
2. Buy a new wheel bearings, but my bikes has 23K km so I really don't see a reason for that.
3. Measure each part separately, disc, bobbins, wheel hub for runout.
4. Check once more steering neck bearings, if it is tight enough, but I used same 30 Nm torque as always for tappered bearings.