You can purchase a warranty from BMW even after yours has expired. Your bike needs to in working order, serviced and you have to wait 30 days for it to kick in.
Really glad i have ordered mine without ESA , TFT and if the flappy exhaust valve goes an aftermarket upgrade system will be done. Just the spokes and forks to watch out for now. Oh dear now why didnt i opt for the Triumph Tiger XRX. These forums scare the shit out of me.
Having been a warranty administrator for a good many years I would personally steer well clear of third party warranties. Loopholes galore, not worth the paper they are written on.��