3Racing SAK-A578SS Graphite Upper Deck for Sakura Advance 21 Racing Setup  [SAK-A578SS]

3RACING Graphite Upper Deck (1.5mm) - SAK-A578SS
Price:
USD$15.20
Brand:
3Racing
Model:
SAK-A578SS
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Chassis Torsional Control for Sakura Advance 21

The 3Racing SAK-A578SS Graphite Upper Deck is engineered to reduce unwanted chassis twist on the Sakura Advance 21 platform. Using graphite material improves torsional rigidity, making suspension behaviour more predictable during tuning sessions.

Material and Handling Impact

Graphite provides a favourable stiffness to weight ratio that benefits steering precision and mid corner stability. For competitive drivers, the SAK-A578SS allows finer adjustment of roll centre and damping interactions without altering hardpoints.

Installation and Setup Considerations

Manufactured to match Sakura Advance 21 mounting interfaces, this upper deck installs without changing factory geometry. After fitting, validate shock valving and spring rates as the reduced chassis flex often requires small suspension retunes to optimise grip and turn-in.

Reducing flex typically demands slightly softer damping or altered valving to maintain tyre contact; test incremental changes to identify the best balance for your track.
Use moderate torque that secures the deck without over-stressing graphite; avoid overtightening which can introduce crack points around fastener holes.
Yes, the SAK-A578SS is intended for drivers making tuning adjustments; its increased stiffness helps isolate suspension effects, making setup changes more apparent and repeatable.