Originally Posted by The Griz
I personally love the 21" front, and would never downsize it. The 17" in the rear is a bit weird with a 21" front though. IMO BMW should have used an 18" in the rear like every other enduro bike.
well Griz,,,you can correct BMW's mistake,,,,,it's an easy swap,,,2.5x18 is the most common set-up because you can run a pair of rim-locks and air down a bit ,,,some folks like the 3.5x18 for lower profile 140/70 x18s
i'd still be swapping the gummi-bear and IMHO too wide 2.15 Behr front for a 1.85 x21 for all around or even a1.6x21 for aggressive dirt activity
then ya can have your cake n eat it too
happy new year