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Engines and Components Pistons and Piston Rings

Athena

Athena 18-24 Honda CRF 250 R Racing 84.95mm 4T Forged Racing Piston

$322.95 $248.25 Save $74.70

SKU: A0EF S4F08500004A

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Ships by Jun 18
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Upgrade your engine's performance with this Big Bore Piston Kit from Athena. Designed to increase displacement, this piston delivers a noticeable boost in power and torque across the entire rev range. It's an excellent choice when you need to replace a worn-out component or are looking for a significant power upgrade. Manufactured from high-quality aluminum alloys, this Athena piston offers an optimal combination of low weight, high strength, and excellent heat resistance. This ensures reliability, even under demanding racing conditions. Increases cylinder bore to 84.95mm for higher displacement. Forged for superior strength and durability. Complete kit includes piston, rings, wrist pin, and circlips. For optimal performance and longevity, ensure you follow the correct engine break-in procedure after installation.

Fitment

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Specifications

BrandAthena
Part NumberA0EF S4F08500004A

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Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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