Abnormal/ normal rotor Wear

smithbuddy760 · Jul 8, 2022

Just picked up a new 22’ v4s and I have around 500 miles on it. Noticed the right rotor seems to be wearing differently than the left. Just checking to see if this is a concern to have addressed during 1st service or if this is normal

smithbuddy760 · Jul 8, 2022

Pic attached

andyb · Jul 8, 2022

are you doing more right hand corners than left?..............

;-)

smithbuddy760 · Jul 8, 2022

andyb said:
are you doing more right hand corners than left?..............

;-)

I haven’t been keeping track but I’d say they’re about 50/50 aha. Any insight on this ? It's the outer circumference that is showing that heavier wear compared to the rest of the rotor that just made me question it. Wasn't sure if that's a typical pattern / normal

smithbuddy760 · Jul 9, 2022

Any insight on this ?

andyb · Jul 9, 2022

maybe its dirt, maybe a stone got into the calliper, if its still under warranty get it checked by a dealer...looks like it needs a bit of a clean have the callipers off and make sure they and the pads are all clean and undamaged, and that the pistons retract fairly easily.

smithbuddy760 · Jul 10, 2022

Tried cleaning the rotor but after going for a ride it still persists. I have my first service next Saturday, but I’m trying to figure out what the root of this could be

1299rFE · Jul 12, 2022

andyb said:
are you doing more right hand corners than left?..............

;-)

Should not matter as this is a floating system

1299rFE · Jul 12, 2022

Try loosening the bottom pinch bolts and the 4 main bolts holding the calipers and bouncing the front end a few times to center them.
Then tighten them a little at a time, not cranking one bolt down tight and it should balance the braking system

smithbuddy760 · Jul 12, 2022

1299rFE said:
Try loosening the bottom pinch bolts and the 4 main bolts holding the calipers and bouncing the front end a few times to center them.
Then tighten them a little at a time, not cranking one bolt down tight and it should balance the braking system

Would you happen to know the torque specs ?

1299rFE · Jul 12, 2022

I do not, the pinch bolts on the bottom do not need to be wrenched down hard, the calipers can be tightened quite a bit, usually from the factory they have marked them off with yellow ink to where they have tightened them to.

smithbuddy760 · Jul 12, 2022

1299rFE said:
I do not, the pinch bolts on the bottom do not need to be wrenched down hard, the calipers can be tightened quite a bit, usually from the factory they have marked them off with yellow ink to where they have tightened them to.

Ok. In all honesty I may just wait until the bike has its first service this weekend and make sure I just bring up these points. I’m assuming it’s slightly misaligned and my guess would be this happened when they took off the reflector and put the caliper spacer in

andyb · Jul 12, 2022

1299rFE said:
Should not matter as this is a floating system

You don’t understand English humour do you…,,

BP PanigaleV4S · Jul 12, 2022

smithbuddy760 said:
Would you happen to know the torque specs ?

With Ohlins, its actually printed on the bottom of the fork. It isn't very tight maybe 6 Nm? With the caliper bolts, you need to very lightly tighten them, just snug, then depress and hold the brake lever, either with a helper or a zip tie when tightening the caliper bolts to 45 Nm.

Abnormal/ normal rotor Wear

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