If you want sharper steering on the XRAY XB9, the XRAY 352215 Composite Right Caster Block set to 16° is a direct-fit upgrade. The part is laser marked with the angle and an R for the right side to speed up setup and reduce guesswork.
The XRAY 352215 has two distinct mounting holes that change handling. The upper hole keeps the previous geometry for more steering on slick or low-traction surfaces, while the lower hole trades a bit of initial turn for greater stability on high-grip or worn tracks. That lets you tweak front-end behaviour without swapping parts.
Install this right-side block together with the #352225 left-side caster block set at 16° for a matched setup. When combined with the XB9 front kick-up, the two sides produce a total caster that helps deliver more predictable steering response and improved corner entry.
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