My rear sprocket was completely worn out and replaced at 4500 miles, the new one has a lip on each side and I've had no screeching from the belt since. No sign of wear so far in around 1200 miles . I can't see any need for a wider rear wheel, the grip seems fine to me (in all weathers ) and as mentioned a wider one would just add more weight .
After I picked up the M3W at the dealer I went out for a nice cruise as the weather gods are blessing us. Bevel Box remains much quieter. The squealing from the belt is totally obnoxious. Took the rear cover off and really examined the rear sprocket and oh my. The wear is very visible and left to it's own devices, it will be fairly useless before the year is out. It will have to be changed to the newer one and I'm going to push my dealer on this one as well as modifying the front sprocket with a flange like the rear. The belt has never come closer than 1/4 inch to the inner flange and those visible teeth are still sharp and delineated while where the belt has made actual physical contact the wear is measurable. While I was there I hit the sprockets and inside of the belt with silicone and all the noises went away. Wonder how long that will last?
What's your mileage? Who cares. Is it practical? See #1. What happens when it rains? You get wet.
