KO Propo launches the BSx5A-one10 Grasper III steering servo with AGR technology

Photo: Circus RC News, 28/09/2026 (source)

Japanese manufacturer KO Propo introduces its new high-end steering servo, the BSx5A-one10 Grasper III, designed for 1:10 competition chassis.

AGR technology to fight understeer

The highlight of this new KO Propo servo is AGR (Active Grip Response) technology, able to detect the chassis behavior in corners in real time and adapt its response accordingly. The goal: reduce understeer, stabilize the car’s line and improve front-end grip.

Smoother, more precise rotation

KO Propo also claims a smoother, better-controlled rotation with this new generation, for finer and more flexible control of the car on track. The BSx5A-one10 Grasper III joins the brand’s premium range, alongside the Grasper servos already well established among 1:10 Touring competition drivers.