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Yajiadi Precision Industry Co., Ltd. is Taiwan’s leading manufacturer of inverted fork coilovers. It has been specializing in the improvement and development of inverted fork technology for decades. Yajiadi has the most professional R&D team and the most accurate machines and facilities. Yajiadi (AGT) has professional damping chamber, precision CNC turning and milling compound machine, laser cutting machine, argon welding, attenuation force testing machine and durability testing machine and other related equipment.It is worth mentioning that Yajiadi (AGT ) has a professional team who are familiar with car chassis and first-class technicians for CNC metal processing and manufacturing, coupled with strict quality control procedures, so it can be favored by many international OEM customers, and its own brand. AGT has also been sold to more than 20 countries.

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Expert in inverted fork suspension
Provide customized services for various needs
Meet all your needs


AGT has more than 2000 square meters of factory buildings and various complete equipment. From research and development, design, production, testing, we provide the one-stop professional inverted fork coilover customization services, we have a variety of types and complete specifications of springs, as well as a variety of damping specifications that can even be equipped with a camble mount. In addition, AGT can also provide customized services to meet various needs.

feature of product
Modification addictive

▶Structure: Inverted long stroke, good support, can effectively resist lateral force.

▶Damping tube: super-density alloy steel, 100% tightness, good elasticity and not easy to deform.

▶Valve: special flow valve design, 24 steps of damping force adjustment, distinct sections and average sections.

▶Damping setting: golden ratio compression side and extension side damping setting.

▶Damping oil: High-grade fat-based damping special oil imported from the UK, which does not produce excessive density changes due to temperature differences.

▶Oil seal and O ring: Germany Oil seal and O ring which wear-resistant, not easy to leak.

▶Piston:Pistons of the same level as a German coilovers manufacturer

▶Piston rod:Nano-grinding ultra-micro-lubrication coefficient effectively reduces frictional resistance.

▶Coilover Spring:The large-diameter conical coilover spring was made of Japanese high-tensile-strength silicon-chromium alloy steel, which has good durability.

▶Enhanced Top Mount:It's can avoid abnormal noise and increase the durability.

▶1-year factory warranty