TS-Air Lightweight Top-out Spring (Manitou)
Fits Manitou forks using TS Air Spring System.  Including:
Manitou R7 2006-2018 (except MRD)
Manitou M30 and Markhor (all)
Manitou Machete Comp & Boost 2018+ (except J-unit)
Manitou Minute & Marvel Comp
Manitou Magnum & Mattoc Comp (TS AIr versions have top only air valve)

TS Air uses a positive air spring with a valve on top and a negative coil spring inside.
This negative coil spring is softer to allow the fork to work better and extend to full height
under lighter riders using lower air pressure.