Your search for "grip bar end" revealed the following:
AELLA Handlebars kit (BMW S1000RR 2019-) AE-27047
$598.00Description of item AELLA separate handle bars for BMW S1000RR 2019- A little difference affects the comfort of long-distance...
Rizoma LP321B Adapter for Rizoma Bar End Mirror, Lever Guard & Bar End - BMW S1000RR, R nine T (all)
$17.50Description Description Rizoma LP321B Adapter for Rizoma Bar End Mirror, Lever Guard & Bar End - BMW S1000RR, R nine...
AELLA DUCATI PANIGALE 1299 CLIP-ON BARS HANDLEBARS AE-27030
$460.00Description of item From the normal handle which is wide open, the width is 10 mm, the handle position is...