You are using a ValueDescription template for a key description.
The image you are using in the template (File:Motorcycle parking.png) would indicate more the 'amenity=motorcycle_parking' you are differentiating from in this proposal here. --Polarbear w (talk) 20:17, 8 April 2018 (UTC)
That's right, what do you think of this one instead ? http://forum.lc8.info//files/attachments/parkplatz_442.jpg Unfortunately the parking sign is not visible. I'll see whether I find a better one (or take a new one). user:rtfm Rtfm (talk) 08:27, 15 April 2018 (UTC)
What is the point of this key?
It's similar to outdoor_seating or beer_garden,
whether this is generally offered by the amenity / accomodation.
If one likes to know the exact location or size, he/she needs to check the area itself.
Those may certainly also be questioned
In case they offer a Garage for motorcycles, how could this be tagged ? Sometimes it is a building=barn used as a motorcycle parking. Covered areas aren't always marked (by lines on the ground), so how to define the area ? A separate node could make sense to know where the parking is (if it belongs to a building), but I think the mapper should decide whether it makes sense in the individual case. user:rtfm Rtfm (talk) 08:27, 15 April 2018 (UTC)