3Racing Sakura M4 SAK-M4S39 Race-Grade Fiber Upper Deck  [SAK-M4S39]

Stiffen Your Sakura M4 Chassis for Better Control

The 3Racing Sakura M4 Fiber Upper Deck with model number SAK-M4S39 is built to improve the structural rigidity of the Sakura M4 chassis. Made from durable fiber, this upper deck strengthens the centre section to reduce unwanted flex, giving racers a more controlled feel through fast sections and chicanes.

Benefits for Track Performance

Engineered to add targeted stiffness, the upper deck helps stabilise the car during aggressive cornering and high speed transitions. Its low mass preserves the original balance and keeps acceleration and steering response intact, making it useful for both club competition and practice sessions.

Fitment and Simple Installation

Designed specifically for the 3Racing Sakura M4 platform, the SAK-M4S39 upper deck installs into the stock chassis layout with minimal trimming. Typical RC hand tools are sufficient, so you can fit it quickly and get back on the track.