This is one awesome bike! This was built by Waltworks. He has many years of building custom frames. This frame was custom built with tapered butted chromoly tubes for someone around 160-170 lbs. What does that mean? The frame is built to have an ideal flex for that weight rather than being a generic steel frame. It has rear rockers allowing 27.5x2.8 or 29x2.6 tires to fit. I ran it as a mullet setup and it was amazing on the descents. The front end is slack and the ride quality is amazing! Fits a 68mm bottom bracket and has boost spacing for a 148mm rear wheel. The axle is included. You can run this single speed or with a rear derailleur. Has internal cable routing for the dropper and the brakes and shifter are externally routed. Has a bottle cage mount. Includes a Cane Creak headset. I've used this frame for a couple years so there are scratches from trail riding, but nothing super deep and there are no dents. This frame includes matching nail polish for touch up purposes. Let me know if you have any questions!