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90cc
Big Bore Kit
(Fits OPBS 21A-70, 21A-70 SE, XS-70, XS-70 A)
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Lightweight aluminum cylinder w/ steel sleeve.
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Piston with rings, clips,
wrist pin and gaskets.
Not sure which kit will fit? Let us know what engine you have and we can
help!
Price: $119
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146cc Ceramic Coated Cylinder
Big Bore Kit
(Fits OPBS 29-125/29-125 PRO/29-125 SE)
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Lightweight aluminum
ceramic coated cylinder w/ steel sleeve.
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57mm piston with rings, clips,
wrist pin and
gaskets.
Not sure which kit will fit? Let us know what engine you have and we can
help!
Price: $199
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146cc Ceramic Coated
Cylinder Big Bore Kit
( GPX & Jialing
motors)
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Lightweight aluminum
ceramic coated cylinder w/ steel sleeve.
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57mm piston with rings, clips, wrist pin and
gaskets.
Not sure which kit will fit? Let us know what engine you have and we can
help!
Price: $199
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160cc Ceramic Coated
Cylinder Big Bore Kit
(Jialing
motors)
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Lightweight aluminum
ceramic coated, sleevless cylinder. 57mm piston with rings, clips, wrist pin and
gaskets.
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13mm wrist pin only
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We recommend that you
use the Big Valve head
Not sure which kit will fit? Let us know what engine you have and we can
help!
Price: $199
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170cc Big Bore Kit
(For YX/GPX 150cc motor)
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64mm cylinder (bored so no
bottom end case boring necessary)
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Aluminum Ceramic Coated
"Skirt less" Cylinder
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Comes with cylinder,
piston, rings, wrist pin and gaskets.
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Bolt on and go!
Not sure which kit will fit? Let us know what engine you have and we can
help!
Price: $219
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170cc Big Bore Kit for 4 Valve Head
(For YX/GPX 150cc motor with 4 Valve Head)
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64mm cylinder (bored so no
bottom end case boring necessary)
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Aluminum Ceramic Coated
"Skirt less" Cylinder
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Comes with cylinder,
piston, rings, wrist pin and gaskets.
-
Bolt on and go!
Not sure which kit will fit? Let us know what engine you have and we can
help!
Price: $219
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