Carbon wheels cracking. - BMW S1000RR Forums: BMW Sportbike Forum
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post #1 of 186 (permalink) Old 10-09-2019, 11:06 PM Thread Starter
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Carbon wheels cracking.

Guys make sure to check your wheels. I started losing pressure in my rear wheel. I thought it was a small hole in the tire or bad valve stem but it was the rim. The main leak was from the valve stem area but had cracks at all the spokes. BMW replaced the rim I was down for 10 days. I have less than 1000 miles. Click image for larger version

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post #2 of 186 (permalink) Old 10-09-2019, 11:28 PM
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Had the same thing in my first 100 miles, was down for 5-6 days, posted on the mechanical issues thread.
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post #3 of 186 (permalink) Old 10-09-2019, 11:48 PM
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WOAH! I'm a very big rider (300lbs) and this is my fear. I'm always checking them. Glad you caught it in time. Do you recall hitting potholes, or anything that may have caused this? I've had no issue I'm currently at 7,500 miles. I do have to put air in tires about once a week. They lose around a pound or so, nothing out of the ordinary from any other sport bike I've owned.
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post #4 of 186 (permalink) Old 10-10-2019, 12:37 AM
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After reading this, I went to check, and sure enough, mine have the same crack lines, in the same place.

This is a day after I had the bike in the shop due to the rear sprocket coming loose from the wheel apparently some gasket(not sure exactly) wore out.

So, broken right side fin(replaced with exact same part, which broke within 200 miles, left switch cluster loosening up constantly, cold start issues, cheap gasket on rear sprocket, and now cracked wheels... 🍋 What's next 🍋
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Last edited by Sabrius; 10-10-2019 at 03:02 AM. Reason: Typos/pictures
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post #5 of 186 (permalink) Old 10-10-2019, 01:21 AM
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seems fair to say BMW is having a rough release on this new bike, I know my 15 wasn't a full redesign and i know 1st year vehicles have problems, but I wouldn't have expected such a wide swath. The rim issue tho is NOT an easy to overlook issue. what happens to the poor shmo that may not notice the cracks and god forbid the wheel gives up and shatters?

not raggin on em, I love my 15 buuuuttttt, just un-expected.

also, "what about re-occurrences on the wheels" how long or how will the warranty work when you show up to the shop with cracks in your carbon fiber wheel that has 10k miles. someones gonna be real pissed when the dealer says "you hit a pot hole" then you have to come up off 4 grand. (just a guess dont know the price of wheel but you get the idea.)
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Last edited by I RR Fast; 10-10-2019 at 01:24 AM.
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post #6 of 186 (permalink) Old 10-10-2019, 01:22 AM
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Yep, this is becoming an issue with carbon. Saw a student low side at low speed and front wheel had a similar issue.

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post #7 of 186 (permalink) Old 10-10-2019, 02:17 AM
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So I came out here to the garage after reading this earlier to take the Fairings off to get the "upper badge faring" ready to be installed tomorrow(carbon fiber). Decided to wax, inspect the **** out of the wheels, sure enough mine is starting to do the same thing. Not losing air yet. This is ridiculous at this point. This is the MAIN ISSUE I had before purchasing the ///M k67. I asked myself " you sure you want to take that risk?". I said to myself to justify the purchase, there is no way BMW would have a set of OEM carbon wheels that would EVER FAIL, the lawsuits would take them under if it were to happen. What do you know? Issues within the first few months.
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post #8 of 186 (permalink) Old 10-10-2019, 05:23 AM
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Quote:
Originally Posted by TONE_757 View Post
I said to myself to justify the purchase, there is no way BMW would have a set of OEM carbon wheels that would EVER FAIL, the lawsuits would take them under if it were to happen. What do you know? Issues within the first few months.

agreed, this is incredibly dangerous... could be a recall soon for the wheels?

im planning to go for the forged anyway, the roads here have horrendous potholes in some places... id probably crack any carbon wheels from daily riding, OEM or aftermarket.
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post #9 of 186 (permalink) Old 10-10-2019, 05:32 AM
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This is very concerning. All I can say to you guys is get it to a dealer asap. They need to notify BMW NA and then they will notify Germany. Mine is due in December along with my friends bike. We ride extremely hard on the road and we have had countless RR's over the years with forged rims and have never had an issue. I don't like this at all. I reckon I am going to be cracking carbon rims every time I do a trip on mine.

After reading up on the issue from some other owners around the world. It seems that some may be superficial cracks in the clear coat rather than structural. Either way though it's still a concern and anything leaking is obviously a crack.

Last edited by bennymx; 10-10-2019 at 08:05 AM.
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post #10 of 186 (permalink) Old 10-10-2019, 08:45 AM Thread Starter
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Just so you guys know this was not from hitting anything. The only reason I noticed this was because the tire was going down every day. This is my first BMW I have had Japanese bikes for 20+ years. I have to say I'm very disappointed with the service and customer service. My air fin on the right side of the bike is broken been waiting 3weeks for BMW to accept my claim.
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