The P-29er frame is the latest manifestation of Ritchey’s deep heritage in mountain bike history–is designed for ripping tight, twisty, and technical cross-country singletrack. The P-29er is built with Ritchey’s proprietary triple-butted Logic steel tubing, BOOST spacing, along with stealthy dropper post routing, and an ultralight forged tapered headtube. If fits tires up to 2.3", and is built around a 100mm-travel fork. Material: heat-treated, triple-butted Ritchey Logic steel tubing. Ultra-light Forged and machined tapered headtube. Optimized or use with a 100mm travel, boost-spaced (15x110) suspension fork, or 500mm axle-crown rigid fork. BOOST 148 x 12mm rear end with replaceable stainless steel derailleur hanger. Post-mount rear brake: 160mm (180mm max - adaptors available separately). Headset: WCS headset included (upper IS42/28.6 | lower IS52/40). Recommended tire size: 29x2.25 (2.3 max) (depending on tire/rim manufacturer). Bottle cage mounts: Two (one on downtube and one on seat tube) *Note: one on size S. Designed for 1X chainrings. 27.2mm seat tube with stealth dropper routing. Bottom Bracket: 73mm English. Item Specifications: Rear Axle: 12mm Thru x 148mm, Brake Type: Disc, TT (Effective): 590, Fork Type: Not Included, Frame Material: Steel, Frame Type: Rigid, Color: Dirt In Blood, Mfg Size: Large, Platform: P-29er, Wheel Size: 29", Defined Color: Red,