The Speed Trainer option is an innovative accessory designed for use with the BODYCRAFT HFT Pro, GT/GTX, F738, and RFT Pro and XFT functional trainers. This tool introduces an exciting range of strength training exercises, allowing you to blend progressive resistance with speed training for a dynamic workout experience. Perfect for enhancing athletic performance, the Speed Trainer facilitates high-speed movements like boxing and golf swings without the lag of traditional weight stacks or cable slack. With easy installation and magnetic storage for power bands, this upgrade is essential for anyone looking to elevate their training regimen.