Niner just resurrected the popular SIR 9 hardtail MTB and it was well worth the wait. Use this bike as a 29r or 27.5+ shred sled, or load it up with bikepacking bags, by utilizing its 18 mounting options. These boosted bikes are available as completes or as framesets. Holler at your local Niner dealer for ordering and see more information at Niner! If you’d like to see the fully gallery of images, check them out below.