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Can I use another brand of strings and cables for my Parker?

We strongly recommend you use Parker strings and cables for your Parker crossbow and compound bow. Each string and cable is designed specifically for our bows and crossbows. Using third party strings will void your lifetime warranty.

Can you change cams on a Parker bow? (i.e. Super Cam to EZ Draw)

No. The relationship between cams, risers, limbs and the draw weights they produce automatically dictates that cams are not interchangeable on different Parker bow models.

Does changing the draw length change the draw weight?

Changing the draw module on a Parker bow does not affect the draw weight.

Changing the draw length by shortening or lengthening the string or string position will affect the draw weight. The longer the string, the higher the poundage. The shorter the string, the lower the poundage.

How is draw length adjusted?

On most Parker bows the length is adjusted by changing a module in the cam or cams. See your owner’s manual to determine which module you need to make the bow fit properly. Other Parker bows have a module built into the cam that can be re-positioned to adjust the draw length, which can be found in the compound bow owner’s manual.

Additionally, on some models there is a second string attachment post that will allow for a 1/2″ reduction in draw length.

How is draw length measured?

Draw length is measured when the bow is at full draw and being held in the “valley” or the highest let-off point on the cam. The measurement is taken from the point where the nock is attached to the string to a point 1-3/4″ in front of the pivot point of the grip.

How often should strings and cables be replaced?

This depends on how much shooting you do. If you shoot 3-4 times a week and also a winter league, then you should change your string and cable once a year. We recommend doing this about 2 months before the hunting season. If you mainly shoot 5-10 times before season to get sighted in and during season 10-20 times, you should replace every two years. However, keep an eye on the serving to make sure it is not separating. Serving separation can lead to string breakage which can lead to injury and breakage of the crossbow or bow.

What range can draw weight be safely adjusted?

All Parker bows can be adjusted down at least 10 pounds from the marked peak weight. For instance, you can adjust a 70 lb bow down to at least 60 lbs.

Where can I purchase strings and cables for my Parker?

We strongly recommend that you contact your Parker dealer to have them order them for you. They can then properly install the string and cables for you. You can also order strings and cables direct by contacting us at 540-337-5426

Why do my arrows with broadheads fly erratic but my arrows with field points fly great?

There are three important factors that affect arrow flight:

1. Center shot
2. Bow tune
3. Aerodynamics

If your center shot is not set properly your windage (left to right) and elevation (up and down) will be inconsistent. The problem may not be noticeable with field points but will be exacerbated and more obvious when the aerodynamics of a broadhead are introduced.

Bow tune is series of measurements and adjustments made to any compound bow that ensure the bow is functioning properly. Bow tune includes such things as tiller measurement, poundage settings, arrow rest alignment, setting the optimum nocking point location, etc.

Aerodynamics can come into play with a fixed blade broadhead as it is propelled down range. Fixed blade broadheads and the shafts they’re mounted on need to be tuned to ensure there’s no wobble and the shafts spin exactly true. This is important to prevent the broadhead from planing or catching wind currents in such as way as to cause erratic results.

If you’re not comfortable tuning your bow, Parker recommends you visit your local archery shop and have your rig checked out. Not knowing what to do to correct it or how to correct it, can cause even more problems.

Why doesn’t my bow shoot as fast as the specifications say it is suppose to?

Nearly all major manufacturer’s measure speed using both the IBO (International Bowhunters Organization) or AMO (Archery Manufacturer’s Organization) speed ratings.

IBO speeds are measured using a 70 lb draw weight, a 30″ draw and uses an arrow weighing 5 grains per pound of draw weight or a 350 grain arrow. AMO speeds are measured using a 60 lb draw weight, a 30″ draw length and an arrow using 9 grains per pound of peak draw weight or a 540 grain arrow. Both AMO and IBO use only a single brass arrow nocking point on the string. There is no peep and no string silencers of any kind both of which rob speed. The key to understand speed is to know the weight of your arrow, the length of the power stroke (draw length) and the exact poundage (draw weight). Any reduction in any of these three deviates from how manufacturers measure speed.

If you’re shooting a 29-inch draw you lose, on average, 12 feet per second for every inch shorter than 30 inches.