EXT E-MX Dual Crown Fork

The FERRO USD 36 fork uses the HS3 technology, the unique hybrid
air spring system, already been famous with the appreciated ERA V2.
Two separate positive air chambers work with one, high volume
self-equalizing negative air chamber; HS3 is focused on mid-stroke
support around the dynamic sag position while offering amazing
sensitivity and bottom-out protection

Fork Structure

Dual Crown Structure:

The robust double crown design in 7075 aluminum ensures maximum stiffness. Crown design is compatible with stock fender designs. 

Sliding Bushings:

 We looked at everything that needed a low friction solution to improve smoothness and sensitivity. This process took us back to our 14 World Rally Championship wins, that make EXT the most succesful suspension manufacturer in WRC. Our new DU bushing material used in the new FERRO USD 36 fork are sized to a defined tolerances for each fork assembly and works in harmony with our dedicated EXT oil. This guarantees zero stiction and super low friction properties even when combined with high side loads.
The dedicated DU guiding system made with a specific superlong bushing overlap ensures the maximum guidance and the best torsional rigidity of the stanchions. (We’ve called it, CGB, Continuously Guided Bushing system which also helps to increase the
dynamic stiffness).

Wheel Axle: Twin hexagonal head floating wheel axle guarantees perfect wheel alignment, while assuring maximum torsional rigidity.