Brake friction - BMW S1000RR Forums: BMW Sportbike Forum
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post #1 of 12 (permalink) Old 10-18-2019, 02:41 PM Thread Starter
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Brake friction

Is a little brake pad contact normal or should the front wheel spin freely?
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post #2 of 12 (permalink) Old 10-18-2019, 03:12 PM
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A little is normal. Clean your puck sides when putting in new pads. Soft brush and some isopropal alcohol, 99%. Let them dry before pushing back for the new pads.

I change tires, you buy them on the web, $50. Seattle area. I use a Coats power tire changer, been doing tires for 15 years.
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post #3 of 12 (permalink) Old 10-18-2019, 04:11 PM
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You also need to establish the proper routine when reinstalling the front wheel to ensure everything is lined up properly. Dave Moss has a good video about it.
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post #4 of 12 (permalink) Old 10-18-2019, 11:06 PM
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Originally Posted by puget1000rr View Post
Is a little brake pad contact normal or should the front wheel spin freely?
This was my first BMW. So I didn’t know that the one side was a captive wheel spacer and I undid both sides for the pinch bolts. When I tightened everything down the spacer was too far out and the front wheel speed sensor was rubbing the wheel speed bracket. So make sure it’s not rubbing there. Other than that a slight run is normal. Make sure when you change your wheel that before you tighten the calipers down all the way, sling the wheel as fast as you can and pull hard on the brake lever. Do this a couple times and then tighten the caliper bolts
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post #5 of 12 (permalink) Old 10-19-2019, 09:35 AM
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Dave Moss video:
https://youtu.be/DYHV78tWs1c
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post #6 of 12 (permalink) Old 10-19-2019, 10:01 AM
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One Problem

One problem with the Dave Moss video.
He has left the brake calipers Hanging by the brake lines after removing the caliper bolts.
The brake calipers hanging by the brake lines is a BIG No-No !!!!!
You are stressing the brake braided line and or the braided line fittings in a way that could compromise the integrity of the components.

I have been schooled in support the the brake calipers on the front stand or any other means of support,Not the brake lines themselves.

Just my 2 cents.
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post #7 of 12 (permalink) Old 10-19-2019, 10:33 AM Thread Starter
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One problem with the Dave Moss video.
He has left the brake calipers Hanging by the brake lines after removing the caliper bolts.
The brake calipers hanging by the brake lines is a BIG No-No !!!!!
You are stressing the brake braided line and or the braided line fittings in a way that could compromise the integrity of the components.

I have been schooled in support the the brake calipers on the front stand or any other means of support,Not the brake lines themselves.

Just my 2 cents.
Interesting the both the KTM andBMW dealer in Stuttgart allows their mechanics to do this... As I have observed. I think on some bikes (cheap) it’s an issue but a high performance motorcycle with proper brake lines is no issue. Just my observation.
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post #8 of 12 (permalink) Old 10-19-2019, 10:36 AM Thread Starter
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Originally Posted by beech View Post
A little is normal. Clean your puck sides when putting in new pads. Soft brush and some isopropal alcohol, 99%. Let them dry before pushing back for the new pads.
What I am saying is there is a little friction built in by brembo. If it was sooo important to rid friction. Brembo with all their engineering prowess would have placed springs in the calipers to retract them.
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post #9 of 12 (permalink) Old 10-19-2019, 10:57 AM Thread Starter
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You also need to establish the proper routine when reinstalling the front wheel to ensure everything is lined up properly. Dave Moss has a good video about it.
Thank you, I’m asking a question on technically how is the brembo brake calipers supposed to perform. I always had a little friction even with a brand new bike off the show room. I thought this slight bit of friction was built in to keep the system warm. If you have high performance brake pads they won’t work right after several miles in cool temperatures on an autobahn.

The book says never loosen the left side pinch bolts that alleviated worrying about alignment.
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post #10 of 12 (permalink) Old 10-19-2019, 11:00 AM Thread Starter
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That’s a different style axel than the bmw. It’s like the KTM style that has an axel nut. The BMW has a “speed” axel. It eliminates the need to loosen the remove the axel nut and loosen the pinch bolts on the axel but side.
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