Tackle blown-out braking bumps, off-camber roots, and steep drops with dirt bike confidence. Traditional upright suspension binds under extreme fore/aft braking forces, transferring harsh chassis vibration directly to your cockpit. Invert Enduro places the oversized 45mm upper tubes and bushings exactly where flex leverage is highest, virtually eliminating bushing bind so your front wheel tracks the trail instead of skipping across it.
Engineered to tame the sheer mass and velocity of modern high-power e-MTBs and aggressive enduro rigs, the SquareLoc axle interface forms an ultra-rigid connection that counters twisting forces. Combined with the race-proven Helm MKII closed-cartridge monotube damper, you gain ten clicks of independent high/low-speed compression adjustment to carve loose berms, hold tight lines, and charge with total front-end composure.
FEATURES
Inverted Moto Architecture
Eliminates fore/aft bushing bind and allows the front tire to track terrain with superior ground-tracing compliance.
SquareLoc Dual Axle System
Locks dropouts via 4 pinch bolts to resist leg twist, boosting torsional stiffness up to 42% over single-crown competitors.
Heavy-Duty E-MTB Chassis
Combines massive 45mm upper tubes with 38mm stanchions and a reinforced steerer tube to handle extreme dynamic loads.
Helm MKII Monotube Damper
Delivers 10 distinct clicks of independent HSC, LSC, and LSR damping via a reliable closed-cartridge bladder system.
Internal Tool-Free Progression
Tunes bottom-out resistance on the fly by unthreading the air cap and positioning the volume piston by hand.
Self-Equalizing Charge Port
Balances positive and negative air chambers seamlessly through compression strokes for ultra-low breakaway friction.
SideSwipe Stanchion Guards
Shields lower sliding surfaces from side-impact rock strikes while ensuring completely snag-free brake hose routing.
Integrated Crown Bleed Screws
Releases trapped atmospheric pressure in the upper casting in seconds to maintain plush full-stroke travel.
PRODUCT POSITIONING
Flagship Heavy-Duty Single-Crown Inverted Suspension Fork for Enduro, Bike Park, and Full-Power e-MTB
TARGET AUDIENCE
Hard-charging Enduro and Bike Park racers demanding maximum traction
Full-power e-MTB riders seeking a flex-free front end under high-speed braking
Boutique custom bike builders looking for high-end moto-inspired performance
Aggressive gravity riders wanting to eliminate arm pump and trail chatter
SPECIFICATIONS
Travel: 160mm, 170mm, 180mm (Adjustable via internal air spring assembly)
Wheel Size: 29" Dedicated
Axle to Crown: 586.5mm (at 170mm travel)
Fork Offset: 44mm
Upper Tube Diameter: 45mm
Stanchion Tube Diameter: 38mm
Steerer Tube: 1 1/8" to 1.5" Tapered (Overbuilt wall thickness)
Spring Type: Cartridge-style Air Spring with self-equalizing charge port
Damper: 2nd Gen Helm MKII Monotube Bladder Damper
Damping Adjustments: High-Speed Compression (10 clicks), Low-Speed Compression (10 clicks), Low-Speed Rebound (10 clicks)
Hub Spacing: Boost 15x110mm (Included) or Boost 20x110mm (Optional)
Axle Standard: SquareLoc 17-4 Pre-Hardened Stainless Steel
Brake Mount: Direct Post Mount 200mm (Up to 220mm with adapter)
Max Tire Clearance: 29 x 2.6" on 30mm internal width rim
Guards: SideSwipe integrated guards included
Actual Weight: 2795g (180mm travel with guards, hardware, and full steerer)
