Upgrade for Viper 990e R Steering Lever Shaft SER904225 by Serpent  [SER904225]

Steering shaft to refine Viper 990e R handling

The Serpent SER904225 is the steering lever shaft replacement intended for the Viper 990e R chassis (SER904008). Fitting this part will restore steering straightness and reduce unwanted play in the linkage so handling inputs remain predictable.

Fitment advice: replace the worn steering lever pivot with the SER904225 and ensure the linkage cycles freely without axial play. Realign the servo linkage and steering arms, then confirm full travel and centering during bench checks before practice laps. Proper installation has a direct effect on steering feel and balance.

Tuning impact: while the shaft itself is a simple spare, using a fresh SER904225 removes a variable in the steering system that can mask setup changes. That stability helps when fine tuning steering geometry and making incremental adjustments on the Viper 990e R.