Cylinders, Top Ends, Upgrade Kits
Powdercoated cylinders are now available. Click here for more info
Zenoah 2 Bolt 22.5cc G230RC Cylinder $35
Zenoah 2 Bolt 22.5cc G230RC Top End $59
Zenoah 4 Bolt 22.5cc G240RC Cylinder $53
CY 2 Bolt 25.4cc Top End Kit $45
Out Of Stock
Zenoah 2 Bolt 25.4cc G260RC Cylinder $38
Zenoah 2 Bolt 25.4cc G260RC Top End $59
Zenoah 4 Bolt 25.4cc G270RC Cylinder $53
Zenoah 25.4cc 4 Bolt Zenoah G270RC Top End $69
CY 2 Bolt 27cc Top End $49
CY 2 Bolt 27cc Billet Head Kit $99
CY 2 Bolt 36mm GP290 28.5cc Cylinder $55
CY 2 Bolt 36mm GP290 28.5cc Top End $75
CY 2 Bolt 36mm GP290 28.5cc Cylinder 40mm Boss $69
CY 2 Bolt 36mm GP290 28.5cc Top End 40mm Boss $89
Zenoah 4 Bolt 36mm 29cc Top End Kit $89
CY 2 Bolt 29cc Top End Kit $59
CY 2 Bolt 29cc Upgrade Kit With 2mm Stroker $89
CY 2 Bolt 29cc Upgrade Kit With Stuffed 2mm Stroker $109
CY 2 Bolt 29cc Billet Head Kit With 2mm Crank $129
CY 2 Bolt 29cc Head Kit With Stuffed 2mm Stroker $139
CY 2 Bolt 30.5cc Upgrade Kit With Stuffed 2mm Stroker $109
CY 2 Bolt 29cc Cut Cylinder $49
CY Head Kit Dome 11:1-20:1 $7
CY Head Kit Copper Dome Gasket $5
Race Ported Zenoah And CY 2 Bolt Top Ends And Upgrade Kits
Race Ported Zenoah 2 Boalt 25.4cc Big Bore Kit $75
Machined And Race Ported Zenoah 2 Bolt 27.2cc Top End $99
Machined And Race Ported Zenoah 2 Bolt 27.2cc Top End With 2mm Stuffed Crank $149
Race Ported CY 2 Bolt 27cc Top End $75
Race Ported CY 2 Bolt 36mm GP290 28.5cc Top End Kit $105
Machined And Race Ported CY 2 Bolt 30.5cc Top End (36mm)
$109
Race Ported CY 2 Bolt 30.5cc Upgrade Kit With .040 Copper Gasket $149
Machined And Race Ported CY 2 Bolt 30.5cc Upgrade Kit With 2mm Stuffed Stroker $149
Race Ported Zenoah 4 Bolt Top Ends And Upgrade Kits
Race Ported G270RC 25.4cc Top End $99
Race Ported G270RC 25.4cc Top End With Decked Cylinder $129
Race Ported G270RC 25.4cc Top End With Lightened Piston $119
Race Ported G270RC Top End With Lightened Piston And Decked Cylinder $139
Race Ported 27.2cc 4 Bolt Top End $119
Race Ported 27.2cc 4 Bolt Upgrade Kit $159
Race Ported 27.2cc 4 Bolt Top End With Lightened Piston $139
Race Ported 27.2cc 4 Bolt Upgrade Kit With Lightened Piston $179
Cylinder Reed Ported Zenoah And CY 2 Bolt Top Ends And Upgrade Kits
Reed Ported 2 Bolt 25.4cc Zenoah Top End With Reed $199
Reed Ported 2 Bolt 25.4cc Zenoah Top End $99
Machined And Reed Ported 2 Bolt Zenoah 27.2cc Top End $125
Machined And Reed Ported 2 Bolt Zenoah 27.2cc Upgrade Kit With Reed And Stuffed 2mm Stroker $249
Reed Ported 2 Bolt CY 28.5cc Top End $109
Reed Ported2 Bolt CY 28.5cc Top End With Reed $209
Machined And Reed Ported 2 Bolt CY 30.5cc Top End Kit $125
Machined And Reed Ported 2 Bolt CY 30.5cc Upgrade Kit With Reed $249