Benefits of a QA1 Carbon Fiber Driveshaft

What sets a QA1 carbon fiber driveshaft apart from the rest?

From the very beginning, we set out to engineer and manufacture the best driveshafts on the market. From using high-tech equipment and quality materials to working with 3M™ to develop our exclusive Matrix Resin to testing with nationally known drivers, every single step has been thoroughly researched to provide the most cutting-edge product in driveshaft technology. To learn more about our development process, visit the Engineering & Manufacturing Process page.

broken driveshaftsIncreased Safety

Most of us have seen the damage that a steel or aluminum driveshaft can do to the cockpit of a racecar. In the unlikely event of a failure, a carbon fiber driveshaft shreds like a broom, so there is no damage to the racer or other parts of the car. We need to remind ourselves that although we take racing seriously and invest a lot of time and money into it, nothing is more important than our safety. If you can choose a product that is both lighter and safer, why would you choose anything else?

Increased Strength and Durability

All carbon fiber driveshafts can save you weight, so we focused on increasing the strength and durability of our driveshafts compared to other carbon fiber designs to give you the most reliable performance and longevity. With QA1, you get weight savings AND reliability, which both contribute to cost savings.

3M Matrix Resin
QA1-Exclusive 3M™ Matrix Resin

3M™ Matrix Resin uses spherical nanoscale silica that provides improved abrasion resistance and longevity, higher compressive strength and minimal water absorption for increased torque capacity and longevity. This resin is exclusive to QA1 performance driveshafts and gives them their distinctive blue tint.


Extreme Torque Capacities
QA1’s in-house winding machines build strength directly into the tube, providing a uniform wall thickness that is created by optimum fiber lay up to ensure high RPM stability as well as extreme torque capacities.

tube yoke bondingQA1-Exclusive Tube Yoke Bonding Procedure
For bonding the tube yokes and tube, we have developed a proprietary 11-step procedure that utilizes a high strength structural adhesive similar to the adhesive that is used to build commercial jets. This process ensures a better balance and minimal material waste, all while providing increased assembly strength. The strength of the adhesive was proven during extreme torsional testing, when the driveshaft tubes would break before the bond between the tube yoke and tube, demonstrating that you don’t have to worry about the tube yokes coming loose with a QA1 carbon fiber driveshaft.

Highest Quality

Not only are the finished driveshafts torsion tested, balanced and serialized, but the materials are tested throughout the process as well. Some tests include tension, compression, shear, three-point bend and surface roughness. We also analyze the composites for fiber volume, layer analysis and to avoid potential void content, so you know you’re getting the highest quality and strength.

Minimized Run Out
Specially developed for QA1's bonding technology, QA1's high-strength forged aluminum tube yokes are CNC machined to ensure proper axial alignment to prevent high RPM unbalance.QA1 driveshaft

High Strength U-Joints and Slip Yokes
We chose the best materials for our driveshafts, which is why we chose the Spicer Life Series U-joints. They provide durability and high torque capacity and are sealed for maximum strength and no maintenance. Our slip yokes are forged and CNC machined and are offered in standard and billet options.

Certified to the SFI 43.1 Standard
QA1’s REV Series driveshafts are certified to the SFI 43.1 standard, meeting stringent specifications for safety and performance. By torsion testing every driveshaft we manufacture to exceed the standards set by SFI, we can ensure that each driveshaft is of the highest quality.

testingHigh Speed Balanced for Smooth Operation
Precision balance tolerance ensures a vibration-free shaft, which also extends U-joint life.

Reduces Noise, Vibration and Harshness
Harmonic testing is done to determine the natural frequency of the driveshaft and a modal analysis is performed to ensure the composite driveshaft meets the applications’ requirements for NVH.

track testingTrack Tested, Racer Approved

QA1 works closely with several professional dirt and asphalt circle track and drag race teams from across the country for feedback and to ensure the driveshafts perform on the track. This allows for continuous improvement, as well as data gathering for future designs. You can read what some of these drivers are saying about the QA1 driveshafts on the Racer & Driver Approved page.

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