X1 Composite Rear Wing (High Downforce) - 373515-K XRAY  [XR-373515-K]

High-downforce wing for 1/10 formula models

The XRAY 373515-K X1 composite rear wing is an RC-scale accessory engineered to increase rear downforce on 1/10 formula racing platforms. Its airfoil shape loads the rear axle to boost traction and directional stability on fast straights and during corner exits, with no real-vehicle application implied.

Listed for ETS competition use, this wing is intended for model-level aerodynamic tuning where balance matters. In practice the component behaves predictably: raising wing angle increases rear grip and drag, while reducing angle lowers both drag and rear grip. Use those changes to tune understeer and oversteer relative to suspension and tyre setup.

Installation guidance is intentionally general. Mount the wing to the X1 series wing points, check trim and symmetry, and make small, incremental angle adjustments when testing to separate aerodynamic effects from chassis and tyre changes.

For model racers seeking a simple aerodynamic upgrade, this composite rear wing provides a stable baseline for downforce-focused setup work while remaining ETS-approved.