Breezer Lightning Pro mountain bike frame, size 21" center to top of seat collar, fits 26" or 650B/27.5 wheels. Includes a Ritchey headset. Overall, it's in good shape, but there are some nicks and cable rub marks in the paint.

Here's a chance to own something that is now getting pretty rare: a modern, XC 26"/650B steel hardtail. Modern in that it's disc only and made for a 100mm fork , with an integrated headset into the machined head tube; lightweight steel (4.75 pounds for the frame) with sculpted tubing for a lively, snappy ride; and 26" wheels for quick handling and response... or fit 650B tires if you feel the need (clearance with a 650B x 2.25" is shown in the pictures)

http://www.breezerbikes.com/archive/2012/lightning-pro-