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Whistle sound when braking in new carbon (rim) wheels

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Whistle sound when braking in new carbon (rim) wheels

Old 09-02-19, 03:13 PM
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dvai
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Whistle sound when braking in new carbon (rim) wheels

Dear all.

I just got a set of Bontrager wheel set which are rim and all carbon.

I installed the wheels and the included calipers. I love the wheels and felt a big difference.

However, when braking (especially hard), I hear a "whistle sound". Is actually a pretty cool sound and doesnt bother me, but I wanted to make sure there is something I installed the wrong way.
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Old 09-02-19, 04:09 PM
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No texture on the brake tracks?
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Old 09-02-19, 04:42 PM
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Originally Posted by dvai View Post
Dear all.

I just got a set of Bontrager wheel set which are rim and all carbon.

I installed the wheels and the included calipers. I love the wheels and felt a big difference.

However, when braking (especially hard), I hear a "whistle sound". Is actually a pretty cool sound and doesnt bother me, but I wanted to make sure there is something I installed the wrong way.
Normal. I like it too.
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Old 09-02-19, 05:27 PM
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dvai
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Originally Posted by Kimmo View Post
No texture on the brake tracks?

Yes, they do have a texture.

If it's normal, is all good!
Sounds almost like a spaceship!
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Old 09-02-19, 05:56 PM
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Yep, textured brake tracks are going to make sound.

My Caden carbons have no texture, and the braking is incredible. Seems texture isn't necessary if the pad compound and brake track composition is right... At least in the dry - I suppose texture probably helps a fair bit in the wet .
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Old 09-03-19, 06:17 PM
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Normal, my Bont Aeolus Pro 3 do the exact same thing, with the recommended brake pads.
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Old 09-03-19, 07:22 PM
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Dixie?
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Old 09-03-19, 08:28 PM
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I liken the sound of mine to a jet turbine winding down.
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Old 09-04-19, 09:42 AM
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Most people go with Black Prince on their generic carbon. Some companies actually develop pads specific to their rims. I find those tend to have the best braking performance.
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