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