Front Upper Arm (Patented) — Honda S2000 (AP1 / AP2)

The Front Upper Arm (Patented) — Honda S2000 (AP1 / AP2) — an Ikeya Formula chassis-geometry component for the Honda S2000 (AP1 / AP2), machined and finished in-house.

Brand: Ikeya Formula
Product Name: Front Upper Arm (Patented)
Fitment: Honda S2000 (AP1 / AP2)
Part Number: 520

Note: Many Ikeya Formula components carry a Japanese patent (PAT.). Fitment should be verified against the specific chassis sub-model before ordering, especially where options list facelift / pre-facelift or power-steering variants.

Ikeya Formula’s suspension range is a reference point in Japanese chassis tuning — pillow-ball tension rods, adjustable camber upper arms, roll-centre correction kits, HICAS tie-rod replacements. The parts are machined from billet and finished to a standard that stands up to full-time circuit use. Each is sold for one specific chassis, so the fitment is tight rather than generic.

Features:

• Chassis-Specific: Machined to the exact mount geometry of the Honda S2000 (AP1 / AP2).
• Billet Machined: Produced in-house at Ikeya Formula; no outsourced generic parts.
• Pillow Ball or Bush: Where applicable, choose the variant that matches your car and use case.
• Patented Where Marked: “PAT.” in the title indicates a Japanese patent on the design.
• Circuit-Grade: Built to hold geometry under track loads, not just street alignment.

For Honda S2000 (AP1 / AP2) owners refreshing suspension bushes, correcting roll centre on a lowered car, or converting to pillow joints.