Rubber Band Tracks...

The above photo is from Diehl Defense.  Check out this tidbit from their website...

The so-called segmented rubber band track 325B represents an innovation on the market of rubber band tracks. Diehl rubber band tracks are provided with separation points so they can be disassembled into four manageable segments. Thus, assembly on the vehicle as well as transportation and storage are facilitated considerably.
The new rubber band tracks can even be replaced in the field under operational conditions in a fraction of the time previously required. Furthermore, individual replacement segments can be transported on the vehicle so that vehicle mobility can rapidly be restored in case tracks are damaged. A new design of the main structure as well as the robust, high-traction rubber profile guarantee high service life in all climate zones and in various terrains.
The rubber band tracks' torsion stability, lateral force bearing capacity and lateral grip are outstanding features far outperforming conventional tracks under peak load conditions.

Looks like Diehl cracked the code when it comes to rubber tracks.

I don't know why but manufacturers have been closed mouth on how the tracks perform....we've all heard that they make tracked vehicles zoom, they're lighter and that they cut down on noise...but how do you replace the darn things.

This clears things up nicely.  I'd still like to see a demonstration or vid of them being placed on a vehicle though.