NordicTrack T Series Treadmills (6.5S, 6.5Si, 7.5S, 8.5S, 9.5S Models) Featured! $699.00 – $1,799.00 Make sure this fitsby entering your model number. Your purchase includes: NordicTrack T Series Treadmill 6.5Si + 1-year iFit Membership Review the instructions regarding your iFit program to redeem your one year iFit membership and activate your equipment for unlimited workout programs and experiences