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J'S RACING EP3 Roll Center Adjuster Knuckle ASSY Right

This is the J’s Racing Roll Center Adjuster installed to the stock Honda *Knuckle, *Hub bearing, *Sirclip, *Hub ASSY, and *Back plate.  The stock Honda parts used are all brand new and they are precision assembled at J’s Racing factory with the experienced mechanic.   There is no need for the pressing and the product makes it possible to do DIY (do-it-yourself) installation.

J’s Racing EP3 FF Roll Center Adjuster

Ball Joint  S45C

Ball Stud  SCM435HB195-260  Total Swing Angle 39°

The extension  10mm


This is a special part to restore the ideal roll center geometry for EP3.

The lower arm angle on a lower ride height vehicle tends to be far from ideal and the roll center point moves to a far low position. The deviation of the roll center from the center of the gravity results in a deteriorated cornering force due to the increased body roll.   Furthermore, the reduced suspension stroke leads to a diminished performance at the limit.

The J’s Racing roll center adjuster rectifies the situation by restoring the ideal roll center position (minimizing the deviation of the roll center and the center of the gravity) and produces the ideals suspension geometry.


★ Reduced roll

★ Increased stability of the tires

★ Sharper steering response

★ Faster cornering

The product is designed from the enormous data and knowhow from the actual racing participations.

Safety precautions

This product is for right side only.  The left side is to be purchased separately.

A proper alignment adjustment is required after the installation.

Please apply the correct tightening torque.

*Shipping from our office is not included, please contact us for cost and ETA before ordering.