This is a 17.5" (Medium) 2015 Yeti SB5C in great shape.
Here's a review: https://www.pinkbike.com/news/yeti-sb5c-exclusive-review-2014.html
The spec's:
- 17.5" (Medium) 2015 Yeti SB5C carbon frame
- Rock Shox Monarch RT rear shock (with Fox Infinity Switch)
- Rock Shox Yari RC front fork
- Diamondback SL 27.5" wheels (with new Maxxis Ikon's)
- Sram XO1 1x11 rear derailleur / XO1 rear shifter
- Sram X1 11-speed cassette
- Shimano XTR 1x crankset
- Shiimano MT-501 (Deore level) brakes (rear is brand-new)
- Answer bar / stem (brand-new)
- Ascend dropper
- Pedals not included