Tight front breaks

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S59

Joined
Jun 24, 2024
Messages
23
Location
France
Hi,

I changed the tires and after setting back the front wheel, I felt that breaks were tight.
Perhaps it worths mentioning that the calipers were hanging down when the tire was removed.

I flushed a bit of the break fluid from both bleeders but it didn't help (maybe I didn't flush enough), I loosen up the two bolts from both calipers and I didn't made a big difference.
Is there any other tests I can make to know where the problem is coming from?

Thanks
 
panibadboy said:
what does it mean tight ?

Is it Stylema calipers ?

Does the wheel do half rotation at least when you spin it while bike on the front stand ?
Click to expand...
It has Brembo calipers.
Just after I break, the wheel doesn't do half rotation but after some time, it does.
 
Are brake pads new ? which model/brand ?

If the wheel does half rotation when bike is on a stand I wouldnt bother much, this is normal.

You can go for a ride to heat up discs and try rotation on a stand again, it should move more freely.

Make sure brake fluid level is less than Max, but in current ambient temperatures outside it shouldnt matter much.

"Hanging down" calipers is irrelevant. Visually not nice, but doesnt affect or change anything.
 
don't pay attention to the sound, I speak Norwegian...
I say that I loosen the calipers screws on both sides, used the break.
 
panibadboy said:
Are brake pads new ? which model/brand ?

If the wheel does half rotation, when bike is on a stand I wouldnt bother much, this is normal.

You can go for a ride to heat up discs and try rotation on a stand again, it should move more freely.

Make sure brake fluid level is less than Max, but in current ambient temperatures outside it shouldnt matter much.

"Hanging down" calipers is irrelevant. Visually not nice, but doesnt affect or change anything.
Click to expand...
Thanks!
What I ment by hanging down is that the calipers didn't get any weight relief when the wheel was removed. Could it come from the break lines?

Edit: the pads aren't new. I dont know the brand...
 
panibadboy said:
doesnt matter


rotation on video looks normal.

Can you torque bolts to spec (30nm is it ?) and try rotation again ?
Click to expand...
sure, will do later tonight.
And here where I live (Norway), it's impossible to ride a two wheel as it's still very icy on the roads.
 
So here is the video with calipers torqued at 30Nm
I feel there is quite a drag when I push the bike (even when I sit on it)

 
panibadboy said:
Are brake pads new ? which model/brand ?

If the wheel does half rotation when bike is on a stand I wouldnt bother much, this is normal.

You can go for a ride to heat up discs and try rotation on a stand again, it should move more freely.

Make sure brake fluid level is less than Max, but in current ambient temperatures outside it shouldnt matter much.

"Hanging down" calipers is irrelevant. Visually not nice, but doesnt affect or change anything.
Click to expand...
See video above :)
 
panibadboy said:
looks normal, dont worry !

just go and ride it like you stole it. the more heat you put into discs, the smoother it rotates.
Click to expand...
well I will have to wait few months for that, still a lot of snow and ice here.
when I mounted back the wheel, I had to use some force to put back the center shaft, made me think that something might be out of alignement?
 
S59 said:
had to use some force to put back the center shaft, made me think that something might be out of alignement?
Click to expand...

What I got taught is :

1. install axle, tighten left pinch bolts and torque axle to spec (i usually use 30nm as I change a lot)
2. undo left pinch bolts
3. put front wheel on the ground and push handlebars to compress forks to re-align the wheel
4. tighten left pinch bolts to 10nm

But in your video, rotation of the wheel is perfectly fine. Its cold, bike hasnt been used, Stylema calipers which have z04s or similar pads.
 
panibadboy said:
What I got taught is :

1. install axle, tighten left pinch bolts and torque axle to spec (i usually use 30nm as I change a lot)
2. undo left pinch bolts
3. put front wheel on the ground and push handlebars to compress forks to re-align the wheel
4. tighten left pinch bolts to 10nm

But in your video, rotation of the wheel is perfectly fine. Its cold, bike hasnt been used, Stylema calipers which have z04s or similar pads.
Click to expand...
I followed the specs from Ducati on their workshop manual.
What about the bolts under the forks? These should keep the axle stable in place.
 
This is for a Panigale V4, so the torque spec may be different.

Front and Brake Caliper Alignment

With caliper bolts loosely fitted,

loosen the axle pinch bolts

pull front brake lever and articulate the suspension, bouncing up and down

tighten axle pinch bolts to 19 Nm

hand tighten caliper bolts

pull and hold front brake lever

tighten caliper bolts to 45 Nm

My front wheel spins just like yours. If that bothers you and you want it to spin freely, take the calipers off and push the pistons in all the way. First time you pull the brake lever though it will slow down since the pads drag on the rotors slightly.
 

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