The Yokomo S4-303OPA slipper outer plate is a direct upgrade for YZ-4S racers seeking a tougher, more consistent slipper assembly. Machined from quality aluminum, this outer plate enhances durability and helps maintain clean power delivery under race conditions. It fits multiple YZ-4S chassis, including B-YZ4SF and B-YZ4SF2-1, making it a practical part for drivers tuning their setup.
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