What Is Crank Cocking Device?

Crank Cocking Device: definition

Also called: crank cocker, cocking crank, integrated crank, crank cocking system

A crank cocking device uses a gear train and a handle to draw the string rearward. Instead of lifting a heavy load with your arms, you turn a handle against a gear ratio, so the effort is low and constant across the stroke. It is the second main family of cocking aid.

Cranks come in two forms. Integrated cranks, such as TenPoint ACUdraw, are built into the stock. Detachable cranks clip onto the stock or limb area for each use. Both draw the string evenly into the string latch.

Some crank systems can also run in reverse to lower the string under control, which makes them a de-cocking solution as well. Whether yours can is a model-specific feature. Only use it the way the manual describes.

Felt effort with a crank

Crank versus rope in practice

Why Crank Cocking Device matters

For shooters with limited upper-body strength, older hunters, or anyone cocking many times in a day, a crank makes a heavy draw weight workable. Effort that would be a real struggle becomes light and repeatable.

An integrated crank also removes the problem of a forgotten accessory and keeps cocking consistent from cycle to cycle, which supports an even string seat.

The trade-off is cost, weight and dependence. On very heavy crossbows there may be no practical hand-cocking backup if the crank fails, so check the manual and warranty.

How to read it on a spec sheet

• Check whether the crank is integrated, detachable, included or optional.
• Look at the claimed felt effort (for example 5 lbs) and ask which draw weight it refers to.
• Read the compatibility list. Many cranks work only on particular crossbow families.
• Check whether the system also de-cocks and whether it is described as a built-in De-Cock function.
• Compare weight and bulk, which add to the crossbow in the field.

Common mistakes

• Assuming a crank is interchangeable between models.
• Letting the handle spin freely during a reverse cycle instead of keeping a firm hold.
• Skipping lubrication or inspection of a crank the manual says to maintain.
• Using the crank to de-cock when the manual does not describe that function.
• Overlooking the lack of a hand-cocking backup on very heavy draw weights.

Using a crank safely

1. Read the manual for the exact crank sequence on your model.
2. Put the safety on, point the muzzle in a safe direction and keep hands off the rail.
3. Engage the crank as described and turn the handle smoothly through the full stroke.
4. Stop when the string seats and the latch engages; do not force the handle past its stop.
5. Remove or stow a detachable crank before loading a bolt.
6. Inspect the crank periodically for wear and lubricate only as your manual allows.

In my testing

Because the review protocol includes a timed cocking cycle, I note how long the crank takes as well as how light it feels. In the TenPoint ACUdraw review the crank brought effective effort to roughly 5 lbs and gave the same anchor point and string tension every cycle. In the Titan X De-Cock review the system completed more than 40 full cock and de-cock sequences with no failed or inconsistent cycle. How I test.

See it in our reviews

• TenPoint ACUdraw — rated 4.5/5
• TenPoint Titan X De-Cock — rated 4.5/5
• Wicked Ridge Invader M1 — rated 4.4/5