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All the B 250s in Canada have run-flats and many hate them (vibration, noise, harshness). Some have even bought new regular tires to replace the new run-flats. So I suspect the CLA 250 will for sure. With the 45, it's less likely due to the speed rating required (W?).
 

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If the 45 comes with 19 inch multispoke - regular tires with rep.kit
With 18 inch - runflat
OH No ! They are doing what BMW is doing with the M3. 19" rims with NON-runflats and NO spare. Just a can of stop leak they call repair kit. It's ridiculous !
That's the reason I never go far with the M3 because if I get a flat, I am dead in the water. They built the E9X BMW with no spare wheel well. All the 3 series get runflats on their 17 & 18" rims
while the 19" gets nothing. MB is doing the same with the CLA - to save weight to the public but to save money in reality as the spare costs a few hundred bucks to include !!! NO...
 

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Discussion Starter · #16 ·
I gotta be honest outsider, I'd rather have to use a can of stop leak for the odd chance of getting a flat as opposed to driving around on noisy, heavy, and harsh riding tires. Once again I have no personal experience with them, just going off of what I've read on the forums.
 

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I gotta be honest outsider, I'd rather have to use a can of stop leak for the odd chance of getting a flat as opposed to driving around on noisy, heavy, and harsh riding tires. Once again I have no personal experience with them, just going off of what I've read on the forums.
The run flats are much better now than years past. The problem with the 19's not having the run flats is because the sidewall is too low for enough stiffness to support the weight of the car without air.
The can is no good if you are almost completely out of air. It is only useful when you act immediately after your tire pressure warning comes on. If you air loss is fast due to a larger nail at an angle, you are done. Flat bed tow time.
 

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The fix-a-flat can is both a tire and rim killer. It destroys a tire that might be reparable with a plug and it also kills the rim inside if it sits too long. It also does absolutely nothing if you've had a blow-out.

-Eric
 
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