Serpent 903896 - Viper 990R Aluminum 2-Speed Bearing Block Race-Ready Upgrade  [SER903896]

Stability-focused bearing block for Viper 990R

Swap in this aluminum 2-speed bearing block to reduce drivetrain play on a Serpent Viper 990R. The machined housing helps keep bearing position steady during fast runs and supports more predictable handling through corners. A practical upgrade for club and track use where consistent performance matters.