PhatheadRacing
Honda CR250 Phathead Combustion Chambers
Regular price
$80.00 USD
Regular price
Sale price
$80.00 USD
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1992-1996 / 2005-2007
H30 - 21.8cc Stock compression
H31 - 20.5cc (95+ octane)
H32 - 19.6cc (100+ octane)
H33 - 18.6cc (105+ octane)
H34 - 17.4cc (110+ octane)
1997-2004
HF21 - 17.4cc Stock compression
HF22 - 16.4cc (95+ octane)
HF23 - 15.5cc (100+ octane)
HF24 - 14.4cc (105+ octane)
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