Violet vault · Neon-sealed drops · Free shipping over $75
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Violet vault stack

Athena 295cc 72mm Yamaha YZ250 YZ250X WR250 Phathead cylinder head kit 1999-2026 Chamber selection:AY21 - 21cc (95+ octane) KX125 all years KTM150SX Phathead cylinder head Chamber selection:Y105 - 52.5mm big bore 91+ octane YZ250 CR125R9304

SKU: 35635525653
4.7
USD212.50 USD238.50

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Shipping Estimate
USA
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Ships within 48 hours · Estimated delivery Sep 24 - Sep 29

Vault brief

Duotone panel — violet briefing on the left, lime-sealed detail sheet on the right.

Detail sheet
Description

Athena 295cc 72mm Yamaha YZ250 YZ250X WR250 Phathead cylinder head kit 1999 2026 Chamber selection:AY21 21cc (95+ octane) KX125 all years KTM150SX Phathead cylinder head Chamber selection:Y105 52.5mm big bore 91+ octane YZ250 CR125R9304 KX125 all years Yamaha YZ85 Phathead cylinder head kit 1993 2018 YZ80

Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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