I've bought several Fat Bikes but this is the first time I've built one from the frame up. I purchased a used RSD Mayor V3 frame and collected the components I needed over the last year which was a bit of a challenge given the state of the bike industry. Mastodon EXT fork, Mulefut 27.5 wheels with Cake Eater 27.5 x 4.5in tires, NX 11 Speed, Race Face Ride cranks and several other Race Face components. I learned a lot and I'm really happy with how it rides. Already looking forward to building another, maybe this time based on the new RSD Mayor V5 frame.