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Motorcycle Big Bore Kits

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Most Recent Motorcycle Big Bore Kits Reviews

Athena Big Bore Kit

Athena Big Bore Kit

Caleb - Battle ground wa
3 out of 5 stars
Well mostly good. "I bought the kit for my 2001 yz125 . The new head for the cylinder had a little dent in it. Either form manufacturing or shipping. I didn’t use it because I didn’t want to risk it being faulty. Hard to see in a picture, but straight edge won’t sit flat across."
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KTM PowerParts SXS Big Bore Kit

KTM PowerParts SXS Big Bore Kit

Gwk565 - Michigan
5 out of 5 stars
300cc kit "Didn’t come with the power valve covers but no biggie. Great kit can’t wait to ride!"
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