XRAY T4 1.2mm 3-hole Composite Pistons (4 pcs) by Arrowmax AM-T4-308037B2  [AM-T4-308037B2]

This set contains four composite shock pistons designed specifically for XRAY T4 dampers, each with three ports and a 1.2mm main hole size, supplied as 4 pcs. They are RC-scale components for fine-tuning damper flow characteristics without altering damper bodies or shafts.

Use these pistons to change low-speed and mid-speed damping response by adjusting bleed area and oil flow. Composite construction provides consistent shape and light wear over normal hobby use, and the 3-hole pattern helps balance valving between fast rebounds and slow compressions for T4 style setups.

Installation is straightforward: remove the damper shaft and piston assembly from the damper body, swap the piston for the desired bleed configuration, verify sealing with your chosen shock oil, then reassemble. Check for smooth shaft movement and no binding before track use.

These pistons are a tuning item for RC dampers and should be used only on compatible T4 damper bodies; do not attempt to fit to non-matching dampers. Keep spares on hand when experimenting with valving to compare performance differences trackside.