I have an affected RW4, about 6 weeks ago my RW4 front tube exploded while I was dropping off my 4 year old at summer camp with less than 20 miles on the bike. Scared a bunch of kids but was luckily not riding it. After that the tire would slip off the rim almost immediately once you start riding and soon explode(photo attached pre-explosion for your viewing pleasure). I called rad after going through 3 tubes and they sent me a new tire, which has worked, but my rear wheel still has a ribbed tire so now Im stuck. Anyway, the exploding tire is not fun, to anyone that has an affected bike I do not recommend riding it until you get a replacement.