<page_title> Honda CRF150F </page_title> <section_title> Specifications </section_title> <table> <cell> Engine <col_header>  </col_header> <col_header> 2003/2004 </col_header> <col_header> 2005 </col_header> <col_header> 2006/2007 </col_header> <col_header> 2008 </col_header> </cell> <cell> 57.3 mm (2.26 in) x 57.8 mm (2.28 in) <col_header> 2006/2007 </col_header> <col_header> 2008 </col_header> <col_header> Engine </col_header> <row_header> Bore/Stroke </row_header> </cell> <cell> 9.5:1 <col_header> 2006/2007 </col_header> <col_header> 2008 </col_header> <col_header> Engine </col_header> <row_header> Compression Ratio </row_header> </cell> </table>
In 2006, Honda had the engine with a compression ratio of 9.5:1 and a bore and stroke of 57.3 × 57.8.