Geisick Performance.com

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YFZ 450 Pistons

Everyone wants different things out of there bike. To accommodate for this we offer many different styles, sizes, and compression ratios of pistons. This allows you to build various sizes of engines and gives you the most options on compression ratios, to build the engine that suits your style.

We also carry custom pistons sizes and compression ratios. Call for more details.

Piston Kits

95mm standard bore (439cc)/(449cc) 12.5:1

95mm standard bore (439cc)/(449cc) 13:1

95mm standard bore (439cc)/(449cc) 13.5:1

96mm +1mm oversize (449cc)/(459cc) 12.5:1

96mm +1mm oversize (449cc)/(459cc) 13:1

96mm +1mm oversize (449cc)/(459cc) 13.5:1

97mm +2 mm oversize (458cc)/(468cc) 12.5:1

97mm +2 mm oversize (458cc)/(468cc) 13.0:1

97mm +2 mm oversize (458cc)/(468cc) 13.5:1

98mm +3 mm oversize (468cc)/(478cc) 12.5:1

Full Race YFZ Pistons ***

95mm standard bore (439cc)/(449cc) 13.25:1

96mm +1mm oversize (449cc)/(459cc) 13.25:1

Wiseco Pistons Also Available

*** Full Race pistons are custom pistons with shelf part availability. These single ring, high compression, lightweight pistons feature a highly efficient dome design that maximizes squish with compromising performance. Lateral gasports are added to maximize ring seal while skirt coating provides additional lubrication, minimizing friction in extreme conditions. Additionally, CP offers dual pin oiling as well as broached oilers. These race kits come complete with high performance rings, lightweight pins and locks.