Changing track conditions don't have to affect your performance. That's why QA1 offers two carbon fiber driveshaft options for super late models, limited late models, and Wissota and IMCA dirt late models. While both provide unmatched performance on any track, they each have their unique features designed to provide extra benefits in specific conditions. Our 2.25'' driveshaft utilizes TractionTwist technology to get better traction on slick tracks, providing extra alignment to avoid binding. QA1's 2.25" diameter carbon fiber driveshaft is the first of its size ever designed for dirt late models, and it features a specially designed tube structure that makes it ideal for use on slick tracks. The tube utilizes TractionTwist technology, which provides more twist under load to smooth out RPM spikes, resulting in smoother application of power to the rear tires. Data tested and track tested with multiple Crown Jewel victories, these driveshafts have proven to increase and maintain traction better than other driveshafts on slick tracks. The driveshafts have a uniform wall thickness created by optimum fiber lay up that ensures high RPM stability as well as extreme torque capacities. A thoroughly engineered surface protection is used to withstand extreme racing environments and provide a worry-free performance. The forged yokes are precision CNC machined and are specially developed for QA1's 11 step bonding procedure that ensures a better balance and minimal material waste. All QA1 driveshafts are precision balanced, track tested and proven. They are lighter, stiffer, stronger and safer than steel or aluminum driveshafts, and available in a variety of lengths and with or without a slip yoke. Custom lengths are also available. Made in the USA.