Hy timbuk, the rear wheel in your picture appears to be a widow maker, I'm not 100% positive. The front wheel in your picture is a three piece split rim. Send us some other pictures of the rears, widow makers have a square section in the center of the rim, and no visible splits, or obvious muliple pieces. They are very dangerous, and I don't think any tire shop will do anything with them, other than break them down, hope that helps
