![Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014 Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014](https://cross-mania.com/19126-large_default/kit-athena-big-bore-o100mm-490cc-for-honda-crf-cre-crm-crmf-and-cref-450cc-from-2005-to-2014.jpg)
![Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014 Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014](https://cross-mania.com/19126-side_product_default/kit-athena-big-bore-o100mm-490cc-for-honda-crf-cre-crm-crmf-and-cref-450cc-from-2005-to-2014.jpg)
![Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014 Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014](https://cross-mania.com/19121-side_product_default/kit-athena-big-bore-o100mm-490cc-for-honda-crf-cre-crm-crmf-and-cref-450cc-from-2005-to-2014.jpg)
![Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014 Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014](https://cross-mania.com/19122-side_product_default/kit-athena-big-bore-o100mm-490cc-for-honda-crf-cre-crm-crmf-and-cref-450cc-from-2005-to-2014.jpg)
![Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014 Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014](https://cross-mania.com/19123-side_product_default/kit-athena-big-bore-o100mm-490cc-for-honda-crf-cre-crm-crmf-and-cref-450cc-from-2005-to-2014.jpg)
![Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014 Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014](https://cross-mania.com/19124-side_product_default/kit-athena-big-bore-o100mm-490cc-for-honda-crf-cre-crm-crmf-and-cref-450cc-from-2005-to-2014.jpg)
![Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014 Kit ATHENA BIG BORE Ø100mm 490cc for HONDA CRF, CRE, CRM, CRMF and CREF 450cc from 2005 to 2014](https://cross-mania.com/19125-side_product_default/kit-athena-big-bore-o100mm-490cc-for-honda-crf-cre-crm-crmf-and-cref-450cc-from-2005-to-2014.jpg)
Here is the big bore kit proposed by ATHENA to increase the displacement of your motocross / enduro HONDA CRE 450cc 4 stroke from 2007 to 2008 / HONDA CRF 450cc 4 stroke from 2005 to 2014 / HONDA CRM 450cc 4 stroke from 2007 to 2008 / HONDA CRMF 450cc 4 stroke from 2005 to 2009 / HONDA CREF 450cc 4 stroke from 2005 to 2009. This kit in Ø100mm against Ø96mm of origin thus makes it possible to pass your motor bike of 450cc has 490cc! A gain of torque and performance will be immediately felt. It allows a gain of 4 HP on average which is huge on this vehicle. You will go from 51.3 HP of origin to 55.3 HP thanks to the kit ATHENA BIG BORE. Enough to have fun on the tracks or in the forest. ATHENA has also planned things well because this top engine is sold complete. It includes the cylinder, piston, ring and all the seals you need for a quality and tight reassembly. The advantage of taking this engine is that it is designed to be mounted on the original connecting rod with the original cylinder head and camshaft. So you don't have any modification to do ! Here attached the power curve so that you can see by yourself the difference between the original and the big bore. You will also find a detailed list of vehicles on which this cylinder can be mounted.
Fits on:
HM CRE 450 2003
HM CRE 450 2004
HM CRE 450 2005
HM CRE 450 2006
HM CRE 450 2007
HM CRE 450 2008
HM MOTARD 450 2003
HM MOTORCYCLE 450 2004
HM MOTORCYCLE 450 2005
HM MOTORCYCLE 450 2006
HM MOTORCYCLE 450 2007
HM MOTORCYCLE 450 2008
HONDA CRF450X 2005
HONDA CRF450X 2006
HONDA CRF450X 2007
HONDA CRF450X 2008
HONDA CRF450X 2009
HONDA CRF450X 2010
HONDA CRF450X 2011
HONDA CRF450X 2012
HONDA CRF450X 2013
HONDA CRF450X 2014
HONDA CRF450X 2015
HONDA CRF450X 2016
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