The 3Racing SAK-D5651 aluminium front upper arms are intended to reinforce the front suspension on Sakura D5 and D5S models. By replacing flexible plastic arms with alloy units, you get steadier steering inputs and less geometry drift.
Aluminium construction reduces deformation under load, keeping the suspension geometry consistent through laps. That stability helps maintain predictable turn-in and mid-corner balance.
These arms provide clearer feedback when adjusting alignment or suspension settings, making it easier to find the right setup for race conditions and tyre choices.
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