BOS Forks Obsys E-MOTO 42


Sale price$20,500.00

Available: 27,5" Electric Motorcycle

Stroke:  220mm

Drawing on its experience in motorcycle and MTB racing, BOS Suspension presents its new Obsys 42 eMoto fork. This version is specifically optimized for electric motorcycles.
Featuring a new double T architecture (7075 T6 aluminum), the Obsys 42 offers improved resistance to torsion and frontal stresses.
We have also optimized the offset and pneumatic spring for use in electric motorcycles. The preload is adjustable via air pressure using the supplied pump.

Equipped with high rigidity, our Obsys 42 fork also demonstrates robustness to ensure maximum reliability and efficiency.

The pneumatic section includes a cartridge independent of the plunger, allowing the fork to flex without generating friction in the cartridge.
This exceptional fork is designed to improve the handling and stability of your electric motorcycle, both on the road and off-road.


- Inverted fork for greater sensitivity, precision, and better grip.

- Double aluminum 7075 T6 fork crowns optimized for electric motorcycles: more front and torsional stiffness.

- 42mm stanchions for maximum rigidity, made of aluminum 7050 T6 with a special low-friction coating.

- 220mm (27.5") travel for even greater progressiveness.

- Completely independent air cartridge from the stanchion allowing for a slight flex of the fork without increasing stress.

- 20mm Boost axle for increased rigidity (convertible to 20mm standard with provided cups).

- Pneumatic spring optimized for electric motorcycles.

- Adjustable preload via air pressure (pump included).

- Bi-Oil: environmentally friendly oil that reduces friction and improves fork operation.

- Weight: 4,500 g.


Whell size: 27,5"

Stroke: 220mm

Variable stoke: No

Offset: 48 mm

Blocking : No

Wheel axle:
20mm x 110mm
Boost (Convertible to Standard)

Brake caliper assembly: Postmount

Minimum Disc diam.: 200mm

Pivot diameter: 1"1/8

Color: Noir

Crown: Double Té Aluminium 7075 T6 

Stanchion: Ø42mm


~4 500 gr


Cartridge type: Obsys specific closed cartridge

Settings: Hydraulic stops for progressive compression

- Compression:
20 clicks

- Rebound:
28 clicks


Cartridge type:
Obsys specific air cartridge

Digital pump: Provided

Fork height (from axle to tee) : 603 mm

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