A beautifully CNC machined underdrive crank pulley by VAC.
Machined to exact tolerances and hard anodized for durability.
These pulleys offer the ability to get the additional weight off
the front of the crank, as well as underdrive all accessories.
When every last bit of reliable output counts on the track, our
pulley can be used to insure the lowest parasitic loss.
This pulley is designed featuring a step on the back side to
easily accept our crank trigger rings for your standalone ECU
install, whatever manufacturers ECU you are using.
We can also supply you with a gear if you wish to use this pulley
to drive a dry sump.
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