Insert 29.00 cc – Fantic XE300 (2024‑2025) MX
High‑compression 29.00 cc insert from VHM designed for Fantic XE300 (2024‑2025) in MX tuning. Optimises low and mid‑range torque by reducing volume when paired with a 12° piston and VHM head.
$129.99
Product Description
The VHM AE32360‑C insert is built for MX tuning of the Fantic XE300 (2024‑2025), specifically when paired with a 12° piston top profile and the VHM cylinder head system. With a combustion chamber volume of 29.00 cc, this insert increases the effective compression ratio compared to larger‑volume versions, resulting in enhanced low to mid‑range torque and improved exit acceleration—ideal for tracks requiring strong performance out of corners. While this configuration slightly limits top‑end speed compared to lower‑compression options, it delivers superior throttle response and better performance in technical or sandy terrain. The insert is precision engineered, easy to install in the VHM head, and engraved with its part number for identification. It does not fit OEM cylinder heads and must be used exclusively with the VHM head system.
Key Features / Benefits:
• Insert with 29.00 cc volume—engineered for increased low/mid‑range torque and stronger corner exit.
• Designed for Fantic XE300 (2024‑2025) when used in conjunction with VHM 12° piston and VHM head.
• Ideal for MX or deep sand tracks where responsiveness and torque matter more than top speed.
• Engraved part number for easy identification; precision‑machined for high durability and tuning flexibility.
• Exclusively for use in VHM cylinder heads—no compatibility with OEM heads.
Technical Specifications / Specifications:
- Type: Optional / Higher Compression Insert
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Combustion Chamber Volume: 29.00 cc
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Piston Height: +2.25 mm
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Squish Clearance: 1.60 mm
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Piston Crown Shape: Dome (12° compatible)
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Compatible Bore Size: Ø 72.00 mm
- Usage Note: Must be used with VHM cylinder head (AA33221) and an appropriate 12° piston configuration.
| Make | Model | Year |
|---|---|---|
| Fantic | XE300 | 2024 - 2025 |


