- 2009-2011 Arctic Cat Z1 turbo
- STM Supertips Adjustable Racing clutch weights 72-114g
STM Supertips Adjustable Racing clutch weights
These are probably the best weights for Drag Racing for 1100 turbo Arctic Cat Z1 and Procross 2009-2014
These weights are extremely adjustable and reduces the need to many clutch spring and can run anywhere from 177HP to 320HP without breaking a sweat.
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