The Serpent 904215 spur gear holder is a vital upgrade for the Viper 990E, built to lock the spur gear in place under hard acceleration and tight cornering. It reduces gear movement that can cause inconsistent power delivery, helping keep your drivetrain predictable on race day.
Manufactured from robust materials, the Serpent 904215 offers long service life and a snug fit in the Viper 990E chassis, allowing straightforward replacement of the stock part. Correct gear alignment from this holder improves drivetrain efficiency and lowers the chance of stripped teeth during heavy use.
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