Photo: RC Monkey (relais Square, rc-square.com) (source)
Japanese tuning brand Square announces two new titanium hex screw kits for the 1/10 touring Xray X4 ’26 and X4F ’27, releasing on September 16, 2026.
HIROSEIKO titanium to shed weight
Each kit covers most of the chassis hardware in original HIROSEIKO titanium, excluding the smallest screws and specific fasteners. The goal is simple: reduce the car’s overall weight by replacing steel screws with titanium equivalents, without touching geometry or setup.
Two dedicated part numbers
The first kit (part no. HS-38077) is designed for the Xray X4 ’26 chassis, the second (part no. HS-38166) for the X4F ’27, each covering a complete car. Square typically sells this type of kit through its online store rc-square.com, where other titanium hardware for transmitters and competition chassis is already available.
🔗 See the product page at RC Monkey (relais Square, rc-square.com) →