brand=KTM ?

Ist das hier ? https://www.wela-suppen.de/kontakt

"Dauerhaft geschlossen" gemäss Facebook vom 17 April 2019

The brand may not be found as of a typo. Please also check whether the POI is still valid in general (not relocated or closed)
osm.wiki/Tag:brand%3DHarley-Davidson

AFAIK this is "conditional" for motor vehicles (in case of snow : no)

brand=KTM ?

osm.wiki/Tag%3Aaeroway%3Dspaceport#Common_tagging_mistakes

Probably closed
https://www.motorradonline.de/ratgeber/hein-gericke-meldet-zum-vierten-mal-insolvenz-an-zubehoer-kette-pleite-abverkauf-laeuft/

Motorcycle tags : osm.wiki/Tag:shop%3Dmotorcycle

Background info : osm.wiki/Namespace_tag_overview#Vehicle_service_tags

Could a local please check whether they moved here ? osm.org/node/8781121605

Spoke to the creator, but he can't remember in detail what this entry was based on (most likely https://ispace-inc.com/aboutus)