Editing Straight-three engine (section)

== Usage in motorcycles ==
[[File:Kawasaki H1 Mach III 500cc.jpg|thumb|right|1969–1975 [[Kawasaki H1 Mach III]] ]]
[[File:Triumph Rocket III engine.jpg|thumb|right|2004–present [[Triumph Rocket III]] engine ]]

{{See also|List_of_motorcycles_by_type_of_engine#Straight_three {{!}} List of motorcycles by type of engine}}

The advantages of a straight-three engine for motorcycles are that it has a shorter length than an inline-four engine and produces less vibration than a straight-twin engine.<ref>How Your Motorcycle Works: Your Guide to the Components & Systems of Modern Motorcycles. Peter Henshaw Veloce Publishing Ltd, 15 Sep 2012</ref>{{page needed|date=November 2020}}

===Four-stroke===
[[Four-stroke]] straight-three engines have been used in road bikes and racing bikes by several companies.<ref name=ride>365 Motorcycles You Must Ride. Dain Gingerelli, Charles Everitt, James Manning Michels. MBI Publishing Company, 10 Jan 2011</ref>{{page needed|date=November 2020}}<ref>The Motorcycle Book, Alan Seeley. MotorBooks International, 2 May 2004</ref>{{page needed|date=November 2020}}<ref>Human Hurricane, Wilson, Steve. Walneck's Classic Cycle Trader, April 2005</ref>{{page needed|date=November 2020}} 

From 1985–1995, the [[BMW_K100#K75|BMW K75]] was produced with a straight-three engine (based on the straight-four engine from the BMW K100).

British company [[Triumph Motorcycles Ltd|Triumph]] is particularly renowned for a transversely-mounted straight-three engine. Variants have been used in their [[Triumph Speed Triple|Speed Triple]],<ref>Cycle world, Volume 44 CBS Publications, 2005. "inline triple"</ref> [[Triumph Trident|Trident]], [[Triumph Sprint (disambiguation)|Sprint]], and [[Triumph Tiger|Tiger]] series.
In addition Triumph makes the [[Triumph Rocket III|Rocket III]] model, various variants of which have held the record for motorcycle with the largest engine displacement.<ref>Triumph Motorcycles: Twins & Triples. Timothy Remus. MotorBooks International, 10 Oct 1997</ref> <!-- not sure, but it looks like a longitudinal inline. Therefore split off the sentence. -->

In [[2019 Moto2 season|2019]], the Moto2 class in the [[Grand Prix motorcycle racing|MotoGP World Championship]] switched to using Triumph 765 cc (46.7 cu in) triple engines.<ref name="Telegraph 2019">[https://www.telegraph.co.uk/cars/features/triumph-enters-grand-prix-racing-moto2-engine-supplier/ Triumph enters Grand Prix racing as Moto2 engine supplier] ''[[The Daily Telegraph|The Telegraph]]'', 18 December 2018. Retrieved 15 December 2019.</ref>

===Two-stroke===
[[Two-stroke engine|Two-stroke]] designs are less common in straight-three engines than four-stroke designs, however several were produced by Japanese manufacturers in the late 1960s through to 1980s. 

The [[Kawasaki triple]] engine was produced from 1968 to 1980 and was used in various road bikes and racing bikes.<ref>The Kawasaki Triples Bible: All Road Models 1968–1980, Plus H1r and H2r Racers in Profile. Alastair Walker, Veloce Publishing Ltd, 15 Jan 2011. P.18</ref><ref>365 Motorcycles You Must Ride. Dain Gingerelli, Charles Everitt, James Manning Michels. MBI Publishing Company, 10 Jan 2011. P.188</ref> Most versions were air-cooled, however several were water-cooled.<ref name="walker">Japanese Production Racing Motorcycles. Mick Walker. Redline Books, Sep 2004</ref> Similarly, the 1972–1980 [[Suzuki GT series]] engines were used for both road bike and racing bikes, and were available in both air-cooled and water-cooled versions.<ref name="walker" />
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