Crankshaft – Middle Inertia for KTM 125SX (2023‑2026) / Husqvarna TC125 (2023‑2026) / GASGAS MC125 (2024‑2026)

The VHM AK20278 crankshaft is engineered for serious two‑stroke 125 cc motocross builds where precision, strength and performance matter. With a “middle inertia” design, this crankshaft strikes an ideal balance between responsiveness and rotational mass, delivering faster mid‑range and top‑end performance while maintaining control and rider feedback. The shaft is machined to tight tolerances (run‑out within 0.01 mm) and built from premium material allowing multiple rebuilds without loss of strength or rigidity. Compatible with KTM 125SX (2023‑2026), Husqvarna TC125 (2023‑2026) and GASGAS MC125 (2024‑2026), this unit is meant for riders who demand higher corner speed, consistent engine behaviour and reduced vibration during competition. Ideal for race tuning, rebuilds and high‑performance setups.

Key Features / Benefits:

• Middle inertia crankshaft tailored for optimal balance: enhanced mid‑top rpm output, improved handling and faster transitions.

• Exceptional run‑out tolerance (within 0.01 mm) for high precision and durability under extreme conditions.

• Constructed for multiple rebuilds without loss of strength or stiffness—ideal for competitive use.

• Compatible with KTM 125SX (2023‑2026), Husqvarna TC125 (2023‑2026) and GASGAS MC125 (2024‑2026).

• Designed to reduce engine vibrations and deliver higher corner speed and rider confidence.

Technical Specifications / Specifications:

• Inertia Classification: Middle Inertia

• Run‑Out Tolerance: Within 0.01 mm

• Application: Two‑stroke 125 cc motocross engine crankshaft

• Benefits: Better mid & top rpm performance, improved handling, less vibration, high durability