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Athena 295cc 72mm Yamaha YZ250 YZ250X WR250 Phathead cylinder head kit 1999-2026 Chamber selection:AY21 - 21cc (95+ octane) Yamaha YZ250 Phathead cylinder head CR85 big bore kit 2cc stock compression CR125R9301 Chamber selection:Athena145 9cc (100+ octane)

USD212.50 USD244.50
4.1

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SKU 35635525653
Collection Stage viride-construction.com

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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Oct 2 - Oct 7

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Description

Athena 295cc 72mm Yamaha YZ250 YZ250X WR250 Phathead cylinder head kit 1999 2026 Chamber selection:AY21 21cc (95+ octane) Yamaha YZ250 Phathead cylinder head CR85 big bore kit 2cc stock compression CR125R9301 Chamber selection:Athena145 9cc (100+ octane) Yamaha YZ250 Phathead cylinder head kit 1999 2026 Currently we offer a stock compression chamber

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • 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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