Technogym Skillrun / Skillmill Belt Disclaimer: For all Technogym Skillrun / Skillmill Treadmills, we ship used belts, unless the option for a New Belt is selected at checkout. They are guaranteed to be 100% functional. They are guaranteed to work like new under the warranty. If the belt malfunctions, we will replace the appropriate part on the belt (Not the entire). They will be replaced with used belt parts. The used belt parts will make the treadmill work like new again, but they will not be brand new. Note that this only applies to all Technogym Skillrun / Skillmill Treadmills.