Front fork seal

Ariete seals - quality and durability.

Ariete's high manufacturing quality corresponds to their unique manufacturing material – a carboxylated elastomer rubber compound known as XNBR

This unique rubber compound has excellent resistance to wear, high temperatures, and various additives contained in the lubricants used in today's motorcycle shock absorbers.

When the shock absorber moves against the seal, it creates significant friction, which is further amplified by the heat generated from friction and hydraulics. This mechanical wear accelerates the aging of the rubber seal. Additionally, the chemical additives in the oils used in shock absorbers also contribute to seal aging.

Shock absorber seals are typically made from a nitrile rubber compound, known as NBR.
This is used not because it is the best material for this application, but because it is widely available and very inexpensive.

Over 50 years in the rubber industry, after years of research and testing, Ariete engineers have concluded that the XNBR rubber compound is currently the best for this application in terms of wear resistance and chemical resistance.

Although the price of XNBR material is almost twice as expensive as NBR, thanks to Ariete's modern manufacturing technology and distribution policy, their price range is very competitive compared to products from competitors using NBR rubber compounds. This allows Ariete buyers to enjoy the benefits of a very high-quality, technologically advanced, yet affordably priced product. As an additional guarantee of product quality, Ariete holds an ISO 9002 quality certificate.

Arisil - special seal grease

Ariete front fork seals are designed to withstand all the different additives used in shock absorber oils. The application of front fork seals differs from standard engine oil seals because shock absorber seals involve up-and-down movement. Due to this movement, the wear on the seal is many times greater than on a standard engine oil seal.
In addition to the special rubber compound used in the seals, Ariete has selected a special grease (Arisil) that is applied to the inner surface of the seal during installation to minimize seal wear, aid in seal 'break-in', and reduce surface adhesion.
This grease is manufactured in the USA and was originally intended as a lubricant for rubber/metal components on NASA space program equipment. Arisil grease provides the seal with a longer lifespan, helps maintain elasticity, and increases resistance to chemical influences.

All Ariete front fork seal packages contain a sufficient amount of Arisil grease for both seals in the package.