Originally Posted by mousitsas
So, what? Out of the 10 times in my 300,000 kms of biking experience I had a flat, not one time it was on the front and I bet that similar statistics apply to most of us.
Flat tires have nothing to do with it. Where did that come from?
BMW put the 21" front wheel there for a reason. The larger 21" front wheel rolls over uneven terrain much easier and smoother than a 19" or 17". I like to ride my F8 on gravel, fire roads, and trails. The 21 incher is essential.
Put it this way: That smaller the wheel, the harder time it has rolling over things.