The Kyosho IFW425B provides a beefed-up rear universal swing shaft option for MP9 owners seeking tougher driveline components for rough tracks.
With an emphasis on endurance, the IFW425B reduces wear and copes with higher loads, making it suitable for both club racing and heavy bashing.
Compatible as a direct swap for IFW404 and IFW404B units, the shaft fits into the stock layout to keep handling predictable after the upgrade.
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