Piston Kit Ø 44.96 mm (12° Top) – KTM 65SX (2009‑2026) / Husqvarna TC65 (2017‑2026) / GASGAS MC65 (2021‑2026)

The VHM APKT06521722B piston kit is specially developed for maximum performance gain in modern 65 cc two‑stroke motocross engines. With a piston diameter of Ø 44.96 mm and a 12° dome‑top profile, this kit is compatible with KTM 65SX (2009‑2026), Husqvarna TC65 (2017‑2026) and GASGAS MC65 (2021‑2026). The piston is 100 % CNC‑machined from high‑quality material and features a non‑circular profile for improved sealing, reduced friction and enhanced durability. It must be used in combination with a VHM 12° insert and head to ensure the correct combustion geometry and performance. Ideal for high‑end rebuilds, race tuning or serious performance upgrades.

Key Features / Benefits:

• Complete piston kit matched to Ø 44.96 mm diameter and 12° dome‑top profile.

• CNC‑machined premium material with non‑circular profile for enhanced sealing and durability.

• Compatible with KTM 65SX (2009‑2026), Husqvarna TC65 (2017‑2026) and GASGAS MC65 (2021‑2026).

• Must be used in combination with VHM 12° insert and head for correct fitment and maximum performance.

• Designed for high performance, includes inside coating and supports long lifespan of high output.

Technical Specifications / Specifications:

• Diameter: Ø 44.96 mm

• Version: Special

• Piston Crown Shape / Top Profile: Flat top 12°

• Bore Size: Ø 45 mm

• Piston Pin Diameter: Ø 12 mm

• Engine Type: 2‑Stroke

• Coating: Yes

• Piston‑to‑Cylinder Clearance: Minimum 0.04 mm, Maximum 0.05 mm

• Piston Ring End Gap: 0.20 + 0.10 mm

• Usage Note: Must be used in combination with a VHM 12° insert and head to ensure correct geometry and optimal performance.