Serpent SER903726 2-Speed XLI Gen2 Performance Kit  [SER903726]

2-Speed Transmission Upgrade for Viper 989 GP

The Serpent SER903726 2-Speed Set XLI Gen2 is a practical upgrade for Viper 989 GP owners wanting more controlled shifting. The kit helps reduce shift shock and keeps power delivery predictable during runs.

Improved Driveability on Track

This 2-speed assembly refines acceleration and braking transitions so drivers get a more manageable powerband. The XLI Gen2 layout aims for repeatable shift events to aid consistent performance.

Direct Fit and Installation Advice

Designed to match the Viper 989 GP (SER903018), the 2-speed set offers a direct fit for most setups. Take care with alignment and check for correct clearances to ensure smooth operation.

Durable Construction for Regular Racing

Produced from durable materials, the Serpent 2-Speed Set XLI Gen2 is intended to withstand frequent track use. Its sturdy build reduces the need for frequent replacement under normal racing conditions.