By replacing it with the genuine top cap, it is possible to adjust the preload of the front suspension. The preload adjustable range is set from -5mm to +10mm, making it suitable for various situations such as setting according to body weight and off-road driving. By initializing the spring, it reduces sinking (nose dive) caused by sudden braking. Equipped with an air bleeder that can release high-pressure air that accumulates inside the suspension due to high-speed driving or intense riding without using tools.

Please note: Installation requires specialized knowledge and skill. Careless work may cause unexpected accidents or breakdowns. If you have any concerns about the work, please contact our store or pro shop.


Manufacturer: ZETA RACING
Brand: ZETA RACING
Model name: SEROW250 (05-20)
Package size: 25 x 10 x 5 cm; 400 g
Product model number: ‎ZE56-10524
Certification: ‎None. Available on a case-by-case basis.
Product weight: ‎400 g