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Suzuki RM250 Phathead cylinder head kit 2003-2009 Chamber selection: Y21 - 21.1cc Stock Y22 - 20.1cc (95+ octane) Y23 - 19.1cc (100+ octane) Suzuki RM250 Phathead cylinder head kit 2001-2002 Chamber selection: S31 - 17.6cc Stock S32 - 16.4cc (95+ octane) S33 - 15.5cc (100+ octane) S34 - 14.4cc (105+ octane) Suzuki RM250 Phathead cylinder head kit 1996-2000 Chamber selection: S21 - 20.6cc Stock S22 - 19.2cc (95+ octane) S23 - 18.2cc (100+ octane) S24 - 17.6cc (105+ octane)
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🇺🇸 Ship from USA · On Agora since 2026
$80.00