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Dirt Bike Big Bore Kits

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12 Results

Athena
Big Bore Kit

$287.06 - 1259.96
Clearance
Up to 24%
4 out of 5 stars (12) reviews

Cylinder Works
Big Bore Gasket Set

$29.99 - 134.96
Sale
Up to 24%
5 out of 5 stars (4) reviews
Video Available

Cylinder Works
Big Bore Kit

$458.91 - 1066.21
Sale
Up to 23%
4.5 out of 5 stars (20) reviews
Video Available

Athena
Big Bore Gaskets

$19.99 - 111.99
Sale
Up to 23%
5 out of 5 stars (5) reviews

Wiseco
12.5:1 Big Bore Kit

$344.91
Sale
Save 22%

Athena
Factory Cylinder Kit

$684.86 - 783.86
Sale
Up to 10%
4.5 out of 5 stars (12) reviews

Athena
Factory Cylinder Kit Gaskets

$39.99 - 60.99
Sale
Up to 10%
3.5 out of 5 stars (3) reviews

GYTR
Ported Cylinder Head Assembly

$2122.99
5 out of 5 stars (2) reviews

Big Bore Kits for Dirt Bikes

Install a big bore kit for optimum power in your dirt bike to tackle the roughest terrain, gnarliest hills and get an edge on the competition. Find a wide range of dirt bike big bore kits at MotoSport that fit many makes, models and years. When deciding on a big bore kit for your ride, use the Fitment Expert on the product page to ensure the right big bore kit for your dirt bike. Most big bore kits include a cylinder, piston, ring(s), pin, clips and top-end big bore gasket kit. If you want help finding the right big bore for your dirt bike please call 1-888-676-8853 to talk to a gearhead who can answer questions and point you in the right direction so you can make an informed buying purchase.

MotoSport delivers all big bore kits fast and orders more than SHIPPING_THRESHOLD ship free!.