The Kyosho MZ407B Suspension Shaft Set is a sensible upgrade for MR-03 Mini-Zs that want crisper control. It focuses on reducing excess movement so the car reacts more predictably at speed.
These shafts integrate with the MR-03 chassis to help steady the car during braking and acceleration phases. By cutting down on unwanted flex, they support cleaner transitions through corners.
Fitment is a priority with this set. The MZ407B is built for MR-03 series cars and typically installs without trimming or modification, letting you continue tuning rather than fabricating parts.
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