Wikipedia:WikiProject Motorcycling/Conventions

Use {{Convert}} for units. Except for US-made motorcycles, we lead with metric, because unit order follows a vehicle's major market. Rest-of-world motorcycles will use kilowatts (kW) and metric horsepower. British motorcycles may use brake horsepower (bhp) and kilowatts (kW).

In almost all cases, do not specify a target unit. Only give the original unit and let the template pick the default conversion, e.g. {{convert|62|mph|abbr=on}} not {convert|62|mph|kph|abbr=on}}. Thousands of editors use {{Convert}}, and the default settings represent a widespread Wikipedia consensus. If the consensus changes, the template will change with it without us having to change any articles. In a few cases the template will give an undesirable conversion and you have to force the target units.

General conventions for units:

• Use the standard International System of Units (SI) describing automobiles, and will generally follow the SI writing style
• separate all units from numbers with a non-breaking space (for example, we type 750&nbѕp;cc so that 750 cc will be displayed in the article).
• Use commas but not spaces in numbers used as measurements, and separate decimals from whole numbers with a full stop/period, not a comma. That is, rather than "1 796 cc", we use "1,796 cc", and rather than "2,2 L", we use "2.2 L".
• Use correct unit abbreviations. Capital letters are only used for unit symbols named after a person, for example
  kW, N⋅m and L
  . The rest are lowercase, for example: rpm (not rev/min, not REV/MIN, not Rev/Min, not RPM) for revolutions per minute, km/h (not kph, not KM/H, not KPH) for kilometres per hour, mpg (not mi/gal, not MI/GAL, not Mi/Gal, not MPG) for miles per gallon, and mph (not mi/hr, not MI/HR, not Mi/Hr, not MPH) for miles per hour.
• If your source unit doesn't match the order we will use for the article, keep the number found in the original source, but add |order=flip, e.g. Cycle World prints that a Ducati motorcycle has a 4.1 gallon fuel tank. We know they use US gallons, so we write {{convert|4.1|USgal|abbr=on|order=flip}}.
• Normally rely on {{Convert}} to handle precision and rounding. Use {{convert|100.2|kW|abbr=on}} instead of {{convert|100.2|kW|abbr=on|0}}

Displacement

Engine displacement should be expressed first in cubic centimeters, and converted with the template default. Cubic inches can be used first to express the displacement of engines originally engineered, designated, and marketed in cubic inches, such as typical American brands. When dealing with engines that were originally marketed using cubic inches, but later adopted metric designations, use {{convert}} with the |order=flip parameter.

Where conflict exists between the actual and advertised displacement of an engine, we treat the advertised displacement as a part of the engine's designation or name, writing it in italic. We also express the actual displacement. E.g. "...a 250 cc class motorcycle of 234 cc (14.3 cu in) displacement".

Power

Power figures should usually be written in metric form with the imperial conversion in parentheses. SI measurements should be expressed in

In some cases power figures should be written in imperial units first, with the metric conversion in parentheses. Imperial measurements should be expressed in

Torque

Torque figures should be written in metric form with the imperial conversion in parentheses. Metric measurements should be expressed in

In some cases torque figures should be written in imperial units first with the metric conversion in parentheses (see above for more details). Imperial measurements should be expressed in pound-feet (lb·ft) (not ft·lb or ft·lbf).

Performance, fuel consumption, and weight

Care must be taken when including fuel consumption and performance figures. Always provide a footnote at the end of the sentence containing performance figures or weight, or at the line in a table or list. Performance figures and weight should only be given if a reliable third party test can be sourced, otherwise leave them out entirely. We usually delete unsourced performance figures in old articles, unless we are certain a good source is contained in the article. Then we tag with {{Citation needed}}. Express acceleration and braking using the {{Convert}} template: {{Convert|0|to|60|mph|abbr=on}} time, {{Convert|0|to|1/4|mi|abbr=on}} time and speed, {{Convert|60|to|0|mph|abbr=on}} braking distance.

{{Infobox motorcycle
|name             = 
|image            = 
|alt              = 
|caption          = 
|aka              = 
|manufacturer     = 
|parent_company   = 
|production       = 
|assembly         = 
|predecessor      = 
|successor        = 
|class            = 
|engine           = 
|bore_stroke      = 
|compression      = 
|top_speed        = 
|power            = 
|torque           = 
|ignition         = 
|transmission     = 
|frame            = 
|suspension       = 
|brakes           = 
|tires            = 
|rake_trail       = 
|wheelbase        = 
|length           = 
|width            = 
|height           = 
|seat_height      = 
|dry_weight       = 
|wet_weight       = 
|fuel_capacity    = 
|oil_capacity     = 
|fuel_consumption = 
|turning_radius   = 
|related          = 
|sp               =  
}}

Manufacturer

The manufacturer field should list the company, division, or subsidiary responsible for the vehicle's development, for example:

• Manufacturer: BMW Motorrad

The appropriate

• Parent Company: BMW

Production

The production field of the automobile infobox should mention the date production started and ended. Dates should be expressed in years (for example, 2001–2006) or in months and years (for example, April 2001–November 2006). Full dates should not be included (for example, 7 April 2001–16 November 2006); these dates can be mentioned in the text of the article if they are known.

"2024–" is preferable to "2024–present" while we are still in 2024. Also, vehicles yet to enter production should state "2024 (to commence)". For all previous years, "since 2006", et cetera is the preferred style.

For vehicles sold in North America where the use of model years is widespread, the "model_years" field of the infobox may be used in addition to "production". Model years are a marketing concept and thus are restricted to full years only; no months or half-years.

Assembly

The assembly field should state the country of manufacture first, followed by a colon, and then the exact location, such as the city or town followed by the state or province if applicable. If the manufacturing entity is separate from the entity responsible for the design and development of the vehicle, then this entity should be parenthesized after the location:

• Australia: Dandenong, Victoria (UAAI)
• Canada: Cambridge, Ontario (TMMC)
• United States: Fremont, California (NUMMI)

1. In choosing images, quality should be the overriding factor.
   WP:IMAGE RELEVANCE for help on relevance. Try to emulate the examples found at Featured pictures/Vehicles/Land
   and the other Featured Picture galleries.
   • Make sure the motorcycle is entirely in frame and is not obscured with objects, people, mud, snow, etc.
   • Crop out distracting elements like parking lots, objects, or other vehicles.
   • Do not take photos through window glass, fog, or with poor focus.
2. The
   WP:CARPIX rule of using a front ¾ view, because motorcycle design is generally two-dimensional, while cars have design details contained in their width.^[1]
   If a side view is unavailable, front ¾ is acceptable. Next, use a front view, or else make do with any quality image you can find.
   • Articles with more than one infobox can have more flexibility in the lead image if there are two side-views in two infoboxes, then yet another side view in the lead would be redundant. An action photo, with rider, or other angle, could be appropriate for the lead.
   • After the lead and/or infobox, then other views, like front, rear, ¾, etc, should be included. Illustrations of unique details of a bike should have priority. A photo of the motorcycle being ridden may be ideal for a lead image because it adds scale and context, and shows rider posture, but only if it is sharp and shows most of the motorcycle, and does not show the rider's face. See Commons:Photographs of identifiable people.
   • All else being equal, quality trumps other considerations. If all the side view photos are out of focus, poorly cropped, poorly lit, etc, then another view should go in the lead.
   • Boring backgrounds, like the bike-in-front-of-garage-door cliche, should be avoided, all else being equal. Interesting background and context make an image preferable. The bike itself should still fill the frame, so the background doesn't dominate the image.
   • An image of the bike upright, on a center or paddock stand, or using props to hold it up, is preferred over a bike leaning on a side stand because it usually shows more of the bike's details.
   • The image selected for an article's top (lead) infobox does not need to show any particular version or generation of the vehicle, such as the latest, the last, the first, the best-selling, or any other. Image quality and overall relevance are the determining factors.
3. Respect the user's thumbnail size
   WP:IMAGESIZE
   .
   • "[[File:...|thumb|...]]" is used for almost all horizontal images.
   • Use "[[File:...|thumb|upright|...]]" for vertical images.
   • Lead images should be 20% to 35% larger than the thumb width, so use
     • [[File:...|thumb|upright=1.35|...]]
   • Where no caption is called for, such as in many infoboxes, use frameless instead of thumb, as in
     • | image = [[File:...|frameless|upright=1.35|...]]
     • |caption= ......
   • If the default image width of 180 pixels looks too small to you, change your preferences; don't force the images larger in the article.
   • The "File:" prefix may be used interchangeably with "Image:" See MOS:Image syntax.
4. Use free images, preferably uploaded to the Commons. Images of vehicles are seldom irreplaceable. Do not use "fair use" promotional images of vehicles. These will be deleted under {{db-f7}} because they are replaceable.
5. The caption should clearly identify the motorcycle. The year or model year (single year or range), model code, or any other relevant descriptor (for example, "pre-facelift" and "facelift") should be included in the image caption. If available, the trim level should also be included.
6. The quality of an image is always more important than the quantity of images included — a gallery or a link to the Commons is preferable to flooding an article with images. Articles with little text but a long, tall infobox can't support more than a few images. In order to have many images below the infobox, fill the empty space with well-researched, encyclopedic words.
7. In pictures of private vehicles, license plates and other personally-identifying information should be unobtrusively blurred or edited out, or, ideally, not be present in the first place.
8. Avoid pictures of heavily customized bikes as they may not be very representative of the vehicles most common appearance, unless the text in context to the picture is dealing with the customization of the vehicle. If the only photo available is of a modified motorcycle, note in the caption how it differs from stock.
9. Avoid photoshopped images, especially those with an unnatural appearance. Avoid images with the background colored white or the background layer cut out. Any photo retouching should look natural, faithfully depict reality, and not draw attention to itself.

Calendar and model years

Articles that use the model year format should clearly differentiate such years from calendar years.

• Prose: when dealing with model years, prose should include the actual model year (e.g. 2006) followed by or preceded by the words "model year" (e.g. 2006 model year, model year 2006). This is only necessary in the first instance per section/paragraph, although longer sections may repeat the term intermittently.

Instead of this:

"For the 2008 model year, curtain airbags were made standard with dual knee airbags offered as an option. 2009 model year versions received a revised grille, and for the 2010 model year, the manual transmission variant was deleted from the lineup."

we write this:

"For the 2008 model year, curtain airbags were made standard with dual knee airbags offered as an option. 2009 models received a revised grille, and for 2010 the manual transmission variant was deleted from the lineup."

• Image captions: when dealing with model years for vehicles sold in North America, image captions should include the abbreviated and linked "MY" prefix (e.g. MY2006).

• Language usage: when referring to model years, state: "for 2010 curtain airbags were made standard" as opposed to "in 2010 curtain airbags were made standard" as the latter suggests calendar years, and not model years.

Unannounced vehicles

In accordance with