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Missing Link Underdrive
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Missing Link Underdrive

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$349.00
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If YOU ARE LOOKING TO COVERT YOUR VICTORY FROM A NARROW TIRE TO A WIDE TIRE APPLICATION, THIS PULLEY IS A MUST

This drive allows use of 8.5"+ rim with a Hammer/JackPot swingarm on a narrow tire engine.

1045 Carbo Steel.
Increased performance without engine mods!

It reduces the tooth count from 33 to 31

Quicker launch

Better roll on acceleration

Stay in the "sweet spot" RPM range during slower riding speeds
7 % RPM differential in 6th gear


The purpose of underdrive gears is to multiply the torque delivered by the engine and transmission. Gears can be thought of as complex levers. In other words, they provide a mechanical advantage that multiplies work—in this case, torque—to help the engine’s power move the vehicle. Lower gears are like a longer lever: They provide more mechanical advantage. Higher gears are like a shorter lever: They provide less mechanical advantage. It’s similar to when you use a long breaker bar instead of a short ratchet handle to remove tight lug nuts. Just like a long bar puts more torque on a lug nut, lower drive gears provide more torque to the wheels.

The heavy bikes benefit most from this part, especially those running the VM-1 cam profiles as they give up a little bottom end TQ for the upper end HP increase. RPMs will increase with this pulley (EX: 3000 is now approx 3210 in 6th gear)

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Missing Link Underdrive
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