LUTU 27.5/29 Full Suspension Mountain Bike Frame (M/L Size). LUTU 27.5/29 Full Suspension Mountain Bike Frame (M/L Size) – Expanded Technical Specifications. Frame & Suspension System. 4-bar rear suspension design with optimized pivot placement for progressive leverage ratio, balancing pedaling efficiency and impact absorption? Matched with DNM RCP-2S shock (230mm eye-to-eye) supporting 140-160mm of rear wheel travel (inferred from head tube fork compatibility)? Adjustable rebound damping and preload, supporting rider weights of. (spring rate optimized for trail/enduro use)? BB73mm threaded shell supports. And aftermarket cranksets (chainline optimized for 12-speed systems)? Compatible with hydraulic disc brakes e. Shimano Deore/SRAM Guide? Full-length stealth ports for. Hydraulic brake lines, and dropper seatpost (31.6mm diameter)? 44/56mm tapered design (1.5″ lower / 1.125″ upper), compatible with. Optional geometry adjustment (if equipped) to modify bottom bracket height (±5mm) and head tube angle (±0.5°)? 73.5mm A-pillar (short rear center) for agile cornering and improved weight transfer? Wheel & Tire System. 110x15mm BOOST (inferred from rear hub compatibility)? 148x12mm BOOST TA, enhancing wheel stiffness and spoke durability? Aggressive tread for loose terrain? (XC/trail hybrid versatility)? Supports internal widths up to. For optimal tire profile? High-gloss electrostatic coating with UV and chip resistance? Dual water bottle bosses (downtube + seat tube), potential top tube accessory mounts? Rated for riders up to. Intended Use & Performance. Technical trails, enduro races, and steep descents (optimized for 27.5″ agility or 29″ roll-over efficiency)? DNM/ROCKSHOX for balanced suspension performance? Weight : M/L: about 4360g. M/L with shock: about 5400g. Please check with your country.