The MJ237A centre shaft set is a scale upgrade for AXIAL SMT10 drivetrains that pairs an aluminium shaft tube with a hardened steel joint head to reduce rotating mass while preserving joint durability. It is suitable for drivers who want a more responsive driveline feel on trails and streets.
The telescoping range of 138-148mm accommodates most SMT10 wheelbases, and the assembly uses stainless fasteners and O-rings to guard against corrosion and looseness. The lighter tube lowers inertia and can enhance low speed control and throttle modulation.
Installation is aimed at intermediate hobbyists: align the splines, clamp the steel joint to the output with the supplied screws, and ensure the O-rings are seated to limit play. Reinspect the joints and screws after a few runs to ensure secure operation.
Ideal as a replacement or modest hop-up for SMT10 vehicles, the MJ237A offers a practical balance of reduced mass and resilient joint construction for everyday RC use.
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