K-Tech Suspension 25SSK IDS Fork Cartridges for the Aprilia 2021 Aprilia RS 660

K-Tech 25IDS (25mm Independent Damping System) front fork cartridges are a complete replacement damping system designed to fit into original equipment front forks that do not allow for external compression adjustment. The 25IDS cartridges are designed and manufactured in house to the same standard as all our performance products using the highest grade aluminium which is hard anodized to improve performance and service internals. The 25IDS cartridges have independent compression and rebound damping adjustment and spring preload.

30 clicks independent compression adjustment

30 clicks independent rebound adjustment

18mm preload adjustment

Increased stroke over original equipment

Aircraft grade aluminum

Hard anodized and super finished components

Wide range of spring rates available

The 25IDS cartridges are only available through K-Tech authorized dealers who have been trained to install these products, there are specialist tools and techniques required to guarantee performance and safety of this product.

These cartridges are supplied with springs. Please give rider weight in gear and intended usage (street, track, race, etc) in the additional notes section.

Like original OEM fork internals many aftermarket cartridges are manufactured with non-anodized aluminum and/or mild steel components. It is important to compare the K-Tech design and manufacturing philosophy which goes the extra mile utilizing all hard anodized aluminum or hard chromed steel internal components. This detail reduces contaminants that build up in the fork fluids which reduces maintenance, prolongs durability and increases consistency of performance. Typically, users are surprised to see clean oil emerge when performing scheduled fork maintenance rather than dark, contaminated oil.