The HS-311 sport servo provides the novice modeler all the performance and reliability you would expect to find in a more expensive servo

5mmMIP Gen 2 Tools: Same Iconic Look

Friction-style dampers offer simple

Fresh tires restore consistent grip and rolling shape once the originals wear down or harden with age

Readers' Choice Award-Winning Tread Design

ARRMA ARA311071 Diff Set 47T 0.8M Dirt Oval The HS-311 sport servo providesThis ARRMA diff set provides a complete pre assembled gear differential for servicing the diff assembly on ARRMA's 1 10 223S platform vehicles. The 47 tooth, 0. 8 module ring gear spec matches the factory transmission, making this the direct drop in when a worn or stripped diff starts clicking, binding, or unloading power unevenly. Because the differential arrives fully assembled, the repair is as simple as opening the gearbox, lifting out the old