The XRAY 352225 XB9 Composite Left Caster Block is designed to sharpen steering precision on the XB9 platform. Fitted on the left, its fixed 16 deg setting combines with the XB9's 10 deg front kick-up to produce a 26 deg total caster, helping improve corner entry and consistency across laps.
Each block is stamped with the caster value and an L for left to avoid mix-ups during setup changes. The upper hole keeps a more traditional steering bias suited to lower traction layouts, while the lower hole boosts stability for tackier, worn-in surfaces. For best results use alongside the #352215 right-side caster block.
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