It’s not just about flex, it’s about optimizing shaft frequency, weight, torque, profile, launch and spin, to help individual players hit it as long, straight and as consistent possible. We wanted to give our premium authorized club builders and fitters an exclusive line of high-performance golf shafts that can be fine-tuned to a golfer’s specific performance needs. Introducing the C6 Series by Mitsubishi Chemical. C6 Red is a more active profile engineered to help players of all skill levels maximize their launch conditions and carry distance. It’s higher launching trajectory and draw bias characteristics are a perfect compliment to the C6 Blue design. ****** This shaft is custom assembled and will be ready to install into your driver head right out of the box. Authenticity is guaranteed! Simply select your shaft flex and desired driver adapter from the options above. All you need is your original driver wrench to screw in the shaft and you are ready to hit the course. Other shaft weights are listed separately. This shaft comes installed with a Tour Velvet 360 grip so you can adjust the adapter settings without worrying about the logo moving around. We cut the shaft precisely to manufacturer’s standard length. Need a different grip or customized length? Just send us over a message when you are checking out and we will be glad to CUSTOMIZE the shaft to your needs! Allow one additional business day for shipment to leave our warehouse; this item is built to order. Please be advised that while the shaft is ready to go, the wrench is not included with your purchase. All workmanship is guaranteed. Contact us if you have any questions or requests.