And the main thing you need to know about that person — the dung beetle in this story? Primarily that the bike I was going to replace it with — a Trek Stache — was suddenly impossible to find. And secondarily because Meriwether agreed to take on the project you’re seeing the end results of within this post. The new rear end is 12 x 157 and 83mm BSA, and can fit either 29 x 2.8″ or 27.5 x 3.8″. So there you have it: More than you ever needed to know about a weird project that no one else ever asked for.