Enhance Your Fitness Equipment Description: Elevate the performance and reliability of your fitness equipment with our speed sensor component. Compatible with Spirit Fitness treadmills and ellipticals, including models such as F63 (563881), WF80 (580888), AF63 (563810), AF65 (565810), AF83 (583810), AF85 (585810), F80 (580810), F63 (563812), F85 (585812), S77 (577812), F65 (565812), and TT8 (588812) spanning different series from 2006 to 2014. With worry-free compatibility across various years and models, our component ensures seamless integration and reliable performance. Easy installation and stable functionality rejuvenate your fitness equipment, adding more enjoyment to your healthy lifestyle.