RS 100 Engine & Cylinder Parts
RS 100 Forged Piston Kit
Forged strength. Precise fit. Tuning-ready crown.
This Forged Piston Kit is built for RS 100 engines requiring a Ø59 mm piston. The forged aluminum crown and skirt are finished to tight tolerances for stable running and ring seal. The blank (unmachined) crown lets engine builders set compression and squish after mock-up for the intended cylinder/head stack.
Highlights
🔹 Forged Construction — High strength and heat resistance when built to proper clearances.
🔹 Blank Crown — Unmachined head allows precise compression/squish setup for your combo.
🔹 Seal Consistency — Matched ring set supports reliable sealing and break-in.
🔹 True Geometry — Controlled skirt and pin-boss tolerances for smooth operation.
🔹 OEM-Compatible Interfaces — Pin and clip grooves designed for clean assembly.
Product Specifications
✔ Bore Size: Ø59 mm
✔ Material: Forged aluminum alloy
✔ Fitment: RS 100 (confirm year/engine variant)
✔ Focus: Engine rebuild / tuning-ready compression setup
✔ Package Includes: Forged Piston (blank crown) ×1, Piston Rings ×1 set, Piston Pin ×1, Circlips ×2
Installation Notes
Use with a correctly honed Ø59.00 mm cylinder; measure piston-to-wall clearance per spec.
Confirm piston-pin diameter/length matches your rod; replace pin bearing if needed.
File-fit ring end gaps to tolerance; observe ring marks and piston orientation arrow.
Lubricate pin/bosses and rings; verify circlip seating; torque to spec and perform proper break-in.
Power You Can Trust.