Krad

16:11 May 25, 2020 

There is, ofc, MCY. See p. 4 of this doc: https://www.cmap.illinois.gov/documents/10180/558010/Plate_F...

The above is also used for some kind of database, I think. Not sure whether that'd work in this context, though.

16:01 May 25, 2020 

The issue is that the smaller versions are called motor-driven cycles (MDCs) or mopeds or scooters in the States, e.g., https://itd.idaho.gov/wp-content/uploads/2019/01/2-Wheel_and...

You can find the same for other states as well. I like Kim's PTW reference, though I'm afraid it's EU-specific (the IMMA is based in Geneva). You could use something like M1/M2 (I'm not sure why almost everyone is trying to suggest some excruciatingly long and non-abbreviated term). But the numbers aren't the same everywhere. See California and Virginia's classification systems:
https://www.dmv.ca.gov/portal/dmv/detail/motorcycles/motorcy...
https://www.dmv.virginia.gov/drivers/#motorcycle.asp

2W could stand in for two-wheeled, but there isn't much else you could add. Maybe jccantrell could simply create an abbreviation and define it somewhere.

Best wishes

15:45 May 25, 2020 

I don't have much time (taking a break), but I'm afraid Erik is right and you got this really wrong. I'm not even sure why; I thought this was quite clear.

KRAD, as in Kraftrad, is the higher-order category and Motorrad the subcategory. Here is a reference (if it's yours, jccantrell, tell me, though I don't think so):
https://kfz-innung-schwaben.de/fileadmin/resources/intern/te...

See p.2, where it says: "KRAFTRAD O.LB.," then "alter Führerschein" and
"KRAFTRAD O.LB.
KRAD, MOTORRAD O.LB
KRAD, M.BW, MOTORRAD O.LB
KRAD, ROLLER O.LB
KRAD, M.BW. ROLLER O. LB"

See what I mean? Basically, there are two defs of KRAD, one being the "generic" one Eric provided and the following: "...mit einem Hubraum von mehr als 50 ccm oder mit einer durch die Bauart bestimmten Höchstgeschwindigkeit von mehr als 45 km/h (vgl. § 2 Nr.9 der Fahrzeug-Zulassungsverordnung)..." https://wirtschaftslexikon.gabler.de/definition/kraftrad-kra...

Light motorcycle doesn't even factor in here somewhere. The above references the following: https://www.gesetze-im-internet.de/fzv_2011/__2.html

Nothing to do with mopeds either.

Best

14:41 May 25, 2020 

This actually confirms Ramey's answer (at least for the UK)
Entry level to motorcycling at age 16 is the moped, a motorcycle of engine capacity no greater than 50 cc restricted to a maximum design speed of 50 km/h (31 mph).
At age 17 the rider may have a "light motorcycle" with an engine up to 125 cc and a power output not exceeding 11 kW (15 hp). Only a CBT certificate, obtained within the past two years, and a provisional licence is needed to ride a learner motorcycle with an L-plate. After passing a test on a 125 cc machine, riders will be restricted to ride a "large restricted motorcycle", which has a maximum power output of 25 kW (34 hp). After two years this restriction is lifted and any size or power of motorcycle may be ridden.

For riders over age 21 there is a direct access route to gaining a licence to ride a "large motorcycle" of any engine capacity or power,[8] which allows somebody with no motorcycle experience to train and pass a test in around five days.

21:22 May 24, 2020 

For the police, insurance companies and licensing authorities, the classifications are based on engine capacity and speed limitations.

20:36 May 24, 2020 

Isn't this meant like: Motorcycle/motorbike, all output classes?
or maybe Motorcycle/other two-wheeled motorized vehicle.
When I see "without performance limitation" my first thought is a vehicle with some sort of restrictor or governor. Perhaps something like "all performance classes" would convey the actual meaning better.

20:33 May 24, 2020 

The term “Powered Two-Wheeler” (PTW) covers a wide diversity of vehicles. The products are divided into different segments such as moped, scooter, street, classic, super-sport, touring, custom, supermoto and off-road motorcycles. http://www.immamotorcycles.org/?q=about/ptw

20:22 May 24, 2020 

I can't offer a translation, but maybe this helps:

The terms are hierarchic. "Krad" (indeed short for Kraftrad) is the generic term for any motorized two-wheeled vehicle (and itself a hyponym, in all likelihood of "Kraftfahrzeuge"). "Motorrad" then is a subcategory of "Krad" and narrows this in a bit further (excluding, for example, motor scooters, mopeds etc.)
O. LB. ("ohne Leistungsbeschränkung") is the next level and allows to differentiate between motorcycles of different power-to-weight ratios.

If don't know if you want to map this to a different legal system. I believe, regulations differ from state to state in the US?