3Racing SAK-X28B Sakura XI Aluminium Shock Bottom Caps Racing Spec  [SAK-X28B]

Race-oriented lower shock caps for precise Sakura XI setups

The 3Racing SAK-X28B aluminium shock bottom caps are engineered to support repeatable suspension behaviour on the Sakura XI chassis. Fabricated from 7075 alloy, these caps increase lower-end stiffness and reduce deformation during high-load runs, helping maintain consistent damping characteristics across multiple runs. The four-piece pack enables full replacement of the stock shock bottoms for a controlled baseline in tune development.

Material and setup advantages

7075 alloy combines high tensile strength with modest weight, making it well suited to race parts where rigidity at the contact points matters. Using these caps helps preserve shock valving performance and reduces variation caused by softened OEM plastics under heat or stress.

Installation and tuning recommendations

Fitment to the Sakura XI shock assembly is straightforward. When installing, verify cap seating and inspect seal contact to prevent leaks. For tuning, re-evaluate spring and oil selection after installation to exploit the more stable lower-end platform during setup adjustments.