Big Bore Kits & Cylinder Kits

71 Products

Naraku 50cc Cylinder Kit for SYM
Part #: 137-71
$129.99
Universal Parts QMB139 39mm Cylinder Kit
Part #: 151-257
$38.99
Naraku 42mm Performance Cylinder Kit for SYM
Part #: 137-15
$119.99

Out of Stock

Universal Parts 47mm QMB139 Cylinder Kit
Part #: 151-255
$59.99
SSP-G Zuma 50F Big Bore Cylinder & Head Kit - 47mm
Part #: 169-452
$449.99
Polini 49mm Cylinder Kit for Vespa ET4
Part #: 146-74
$279.99
Universal Parts QMB139 50mm Big Bore Cylinder Kit
Part #: 151-258
$69.99
Universal Parts Complete 50mm QMB139 80cc Kit
Part #: 151-269
$124.99

Out of Stock

Hoca 50mm QMB139 Performance Cylinder Kit
Part #: 169-54
$79.99
SSP-G 50mm QMB139 Big Bore Cylinder and Head Kit
Part #: 169-518
$199.99

Out of Stock

SSP-G 52mm QMB139 Big Bore Cylinder and Head Kit
Part #: 169-536
$204.99

Out of Stock

Airsal 50mm Big Bore Cylinder Kit for QMB139 50cc
Part #: 158-3
$95.99
Naraku 52.4mm Performance Cylinder & Head Kit
Part #: 137-4
$239.99
Universal Parts GY6 150cc 57.4mm Cylinder Kit
Part #: 164-308
$49.99
Universal Parts GY6 Cylinder and Head Kit
Part #: 164-319
Naraku GY6 58.5mm Big Bore Kit
Part #: 137-61
$95.99

Out of Stock

Naraku GY6 58.5mm Big Bore Kit - Forged Piston
Part #: 137-9
$159.99

Out of Stock

Ban Jing GY6 Ceramic Big Bore Kit - 58.5mm
Part #: 169-277
$169.99
SSP-G 59mm Z125 Performance Cylinder Kit
Part #: 169-467
$199.99
SSP-G 61mm Drop In Cylinder Kit for GY6
Part #: 169-485
$155.99

Out of Stock

Hoca GY6 61mm Big Bore Cylinder Kit
Part #: 169-173
$144.99
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Select up to 4 items to compare.