The EXT Vaia 29" is a dual-crown, inverted downhill suspension fork built for riders who want maximum fore-aft tracking, high-speed composure, and a wide tuning window from the same chassis. With 200mm travel, oversized 38.5mm stanchions, and a long-overlap floating bushing system, it targets aggressive DH riding where small-bump sensitivity and brake-bump control matter as much as outright stiffness.
Key performance details DH riders actually tune around
Inverted dual-crown chassis with 38.5mm stanchions - Designed to stay precise under heavy loads while keeping the front wheel planted through repeated impacts
Floating bushing system - Delivers an exceptional 240mm bushing overlap at sag to support smooth, controlled travel and reduce binding when the fork is pushed hard
High/low-speed compression + rebound adjustment - Cartridge-based damping with low-friction seals and high dynamic response valves for meaningful tuning across steep chutes, brake bumps, and big compressions
HS3 air spring with dual positive chambers - Two independent positive air chambers expand setup range, helping riders balance mid-stroke support with bottom-out control
Tunable negative chamber volume - Allows sensitivity to be shaped for traction and comfort without forcing a one-size-fits-all feel
Bleed buttons on both legs - Quick pressure equalization for consistent feel across long descents and big temperature swings
Built details and compatibility notes
Materials - Machined 7075/7050 T6 aluminum with Grade 5 titanium hardware for strength and durability in DH use
Adjustable rake - Switch between 44mm or 48mm offset to fine-tune steering stability vs. front-end agility
Service-friendly lubrication volume - Optimized inner volume helps maintain lubrication at the sliding bushings for smoother action over time
Upper crown sold separately - Choose flat or drop upper crown to match fit and cockpit setup
Axle sold separately - Compatible with 20mm or 15x110mm BoostGrade 5 titanium axle options
Rotor clearance - Warranty coverage up to a 220mm rotor