The Serpent 402176 antiroll bar inserts are designed as spare tuning parts to adjust roll resistance on compatible X26 platforms. Supplied as a four-piece set, they let you change the effective stiffness of the antiroll system without replacing the entire assembly, enabling precise tuning steps between test runs.
Manufacturer compatibility lists Medius X26 steel EP (SER400052); confirm that chassis code before buying. These inserts serve as the replaceable contact points inside the antiroll bar linkage or at the bar ends, allowing you to control lateral compliance and transient roll for a better front-to-rear balance.
Fitting is typical for touring car antiroll gear: remove the end links or retainers, exchange the original inserts for the new set, then reassemble and check movement on the bench. No specialist tools are normally required, though following your usual maintenance and torque checks is recommended.
Tuning recommendation: apply insert changes in small increments to track the handling effect. Combine insert swaps with adjustments to swaybar thickness and shock settings to shape understeer and oversteer tendencies; document every change so results are repeatable.
Owners of Medius X26 steel EP chassis can use these inserts to fine-tune roll characteristics quickly with minimal parts replacement.
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