The KO Propo 35048 aluminium upper case is made to fit the BSx4S-one10 Grasper2 servo exactly. Machined from durable aluminium, it increases housing stiffness and shields the internals while keeping weight low so handling stays predictable.
Replacing the stock plastic top with this aluminium unit improves heat dissipation and reduces flex under load. That combination helps the servo stay responsive during club racing or aggressive off-road runs where temperature and stress can climb.
The upper case installs with basic hand tools and lines up with the existing mounts on the BSx4S-one10 Grasper2. The direct fit means a quick upgrade that gets you back on the track fast.
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