Maintaining the Edge: A Guide to the Diamond Infinite Edge Pro 55″ Compound Bow String
In the world of compound archery, consistency is the difference between a trophy mount and a missed opportunity. For those utilizing the Diamond Infinite Edge—widely regarded as Diamond’s best-selling compound bow—maintaining that consistency begins with the strings. Whether you are leaning into competitive target shooting or preparing for a hunting season, the integrity of your bowstring is paramount to speed and accuracy.
As Editor-in-Chief of Archysport, I have spent over 15 years covering the technical nuances of high-performance sports, from the precision of the Olympic Games to the raw power of the NFL. My time leading editorial teams across nine sport verticals has taught me that the smallest piece of equipment often dictates the outcome. In archery, that piece is the string. When it comes to the Diamond Infinite Edge Pro 55″ compound bow string, choosing the right replacement—such as those offered by Proline Bowstrings—can significantly impact your shot’s reliability.
The Proline Bowstrings Option
For archers seeking a direct and affordable replacement, Proline Bowstrings provides a 55″ compound bow string specifically designed for the Diamond Infinite Edge Pro. Listed at $34.99 with free delivery, this option serves as a targeted solution for shooters needing to restore their bow’s factory specifications without a massive investment.
While OEM (Original Equipment Manufacturer) options exist, ranging from $37.95 to $89.95 depending on the set, the Proline option represents a mid-market choice for those who prioritize a quick turnaround and specific length requirements.
Technical Specifications: String and Cable Lengths
Precision is non-negotiable in compound bow maintenance. Installing a string with the incorrect length can alter the bow’s timing and overall performance. For the Diamond Infinite Edge Pro, the critical measurements are as follows:
- String Length: 55″
- Cable Length: 33 1/16″
It is a common point of confusion for beginners to overlook the cable length when ordering a replacement set. While the main string handles the arrow’s launch, the cables manage the cam rotation. Ensuring both the 55″ string and the 33 1/16″ cable are correctly matched is essential for the bow to function as intended.
Elevating Performance with Custom Strings
For the archer looking to move beyond standard replacements, custom options provide a pathway to optimized speed and consistency. 60X Custom Bow Strings offers a high-end alternative that focuses on eliminating common failure points found in stock strings.
Custom strings from 60X are individually built by a former World Champion and utilize a proprietary five-stage stretching process. This is a critical detail; by pre-stretching the material, the manufacturer reduces “creep”—the tendency of a string to stretch over time—which can throw off a bow’s tuning.
The Advantage of BCY Material
The use of reliable BCY bow string material ensures longevity, even under heavy use. Beyond the material, custom strings aim to solve three primary issues that plague seasoned archers:
- Peep Rotation: Ensuring the peep sight stays aligned.
- Creep: Preventing the string from stretching and altering the draw length.
- Serving Separation: Maintaining the integrity of the protective wrapping on the string.
custom options allow for personalization through a variety of string and serving colors, letting archers match their gear to their personal style while benefiting from a one-year warranty.
When to Replace Your Bowstring
A bowstring is a wear-and-tear component. While it may look intact to the naked eye, the internal fibers can degrade, leading to a loss of velocity or, in extreme cases, string failure.

For frequent shooters, the general recommendation is to replace worn strings approximately every two years. Yet, archers should regularly inspect their gear for fraying or significant changes in the bow’s timing. If you notice the peep sight shifting or a decrease in arrow speed, it is time to look at replacement options.
Note for the reader: If you are unsure whether your string has “crept,” comparing your current string length to the 55″ factory specification using a bow scale is the most accurate way to verify.
Market Comparison: Replacement Options
Depending on the budget and performance needs, Notice several avenues for sourcing Diamond Infinite Edge Pro strings. Based on current market availability, the options generally break down as follows:
| Provider | Type | Price Range | Key Feature |
|---|---|---|---|
| Proline Bowstrings | Replacement | $34.99 | Direct 55″ fit |
| 60X Custom Strings | Custom | Varies | 5-stage stretching/BCY material |
| OEM Sets (via eBay) | Factory | $37.95 – $89.95 | Standard factory specs |
| Archery Shack | Replacement | $34.79 – $74.99 | Includes free wax |
Final Thoughts for the Archer
The Diamond Infinite Edge Pro is a versatile tool, capable of transitioning from a hunting blind to a competitive target range. To keep it performing at its peak, the 55″ string must be maintained. Whether you opt for the affordability of Proline Bowstrings or the professional-grade customization of 60X, the goal remains the same: a consistent, accurate shot every time you release the trigger.
For those needing immediate expert assistance, specialists at 60X can be reached at 724-525-3972 to discuss specific customization needs.
The next step for any bow owner is a seasonal gear audit. Check your string length and serving integrity before your next outing to ensure your equipment is as ready as you are.
Do you prefer custom-built strings or stick to OEM replacements for your Diamond bow? Share your experiences in the comments below.