XRAY T4 Shock Pistons Composite 4-Hole 1.2mm - Arrowmax AM-T4-308037A2  [AM-T4-308037A2]

1.2mm Four-Hole Composite Shock Pistons

Arrowmax AM-T4-308037A2 pistons are compact, serviceable components made for shock tuning on XRAY T4 and other compatible 1/10 touring car platforms. The pack includes 4 composite pistons, each machined with four 1.2mm flow holes to modify oil transfer and damping inside standard touring dampers.

These pistons serve as a straightforward aftermarket option where XRAY T4 compatibility is required. The composite construction aims to balance durability with light weight. Because hole count and diameter control oil flow, the 1.2mm four-hole layout gives a mid-to-higher flow restriction compared with fewer or smaller holes.

Fitting is routine for those familiar with 1/10 touring shocks: open the damper, remove the existing piston, slide on the Arrowmax piston and reassemble using the original seals and spacers. Check piston orientation, stroke, and clean mating surfaces to avoid seal wear or trapped debris.

Tuning tips for everyday use

• Use these pistons to dial in mid-speed damping response; four 1.2mm holes add more resistance than larger-hole patterns.
• Match piston choice with shock oil grade and spring rate to achieve the desired handling balance.
• After installation, inspect shaft straightness and endplay to prevent binding that can mimic damping issues.