Piston Kit Size I (Size A) for KTM 50 SX Mini 2009-2026 - 45230007100 I

This is a high-quality piston kit (Size I / Size A) for 50cc 2-stroke engines. It includes the piston, wrist pin, circlips, and piston ring for complete replacement. Designed for reliable performance and durability in young rider motocross bikes.

Compatible with KTM 50 SX, 50 SX Mini, 50 SXS (2010-2026), Husqvarna TC 50, TC 50 Mini (2017-2026), and GasGas MC 50 (2021-2026). Also fits earlier models from 2009 including KTM 50 SX Junior. Direct OEM replacement for position #14 in the crankshaft and piston assembly.

CNC-machined aluminum piston with anodized finish for reduced wear and corrosion resistance. Includes all necessary components for straightforward rebuilds, ensuring proper compression and engine power.

Professional installation recommended; requires engine disassembly and proper break-in procedure. Use high-quality 2-stroke oil and follow manufacturer torque specs.

Check compatibility list below to see if this part fits your motorcycle model.