Editing Semi-automatic transmission (section)

== Usage in motorcycles ==
An early example of a semi-automatic motorcycle transmission was the use of an automatic centrifugal clutch in the early 1960s by the Czechoslovakian manufacturer [[Jawa Moto]].<ref name=CZ>{{cite web |title=Válka mechaniků: Japonci okopírovali český vynález! |url= https://epochaplus.cz/valka-mechaniku-japonci-okopirovali-cesky-vynalez/ |website=EpochaPlus|language=cs-CZ|date=20 January 2015|last=Kožušník|first=Marek|access-date=27 December 2019}}</ref> Their design was used without permission in the 1965 [[Honda Super Cub|Honda Cub 50]], which resulted in Jawa suing Honda for [[patent infringement]] and Honda agreeing to pay royalties for each motorcycle using the design.<ref name=CZ/>

Other semi-automatic transmissions used in motorcycles include:
* [[Honda]]'s [[Hondamatic]] two-speed transmission fitted with a torque converter (which shares its name with several fully-automatic transmissions), as used in its 1976 [[Honda CB750A|CB750A]], 1977 [[Honda CB400T#CB400A Hawk Hondamatic|CB400A Hawk]], 1978 [[Honda CM400|CM400A]] and 1982 [[Honda CM450A|CM450A]].<ref name="cyclemay1976p69">{{cite journal|title=Cycle magazine |date=May 1976|publisher=Ziff Davis |pages=67–73}}</ref><ref>{{cite web|url= https://www.bennetts.co.uk/bikesocial/news-and-views/news/2020/may/hondamatic-for-the-21st-century |title = Hondamatic for the 21st century}}</ref><ref>{{cite web|url= https://motorcycles.news/en/honda-patent-for-a-semi-automatic-cb1100/ |title=Honda patent for a semi-automatic CB1100|date=27 May 2020}}</ref><ref>{{cite web|url= https://www.visordown.com/news/new-bikes/honda-patent-semi-automatic-system-cb1100 |title = Honda patent semi-automatic system for CB1100}}</ref><ref>{{cite web|url=https://global.honda/heritage/episodes/1968hondamatic.html|title = Honda Global &#124; the Hondamatic Transmission / 1968}}</ref>
* Those in various [[minibike]]s, including the Amstar Nostalgia 49,<ref>{{cite web|url=http://amstarmotor.com/index.php?c=content&a=show&id=599|title = Nostalgia 49-49cc-Motorcycle-Products-Amstar Motor Corporation}}</ref> Honda CRF50F,<ref>{{cite web|url=https://powersports.honda.com/off-road/trail/crf50f/specifications|title=2022 CRF50F SPECIFICATIONS – Honda|website=powersports.honda.com}}</ref> [[Honda Z series|Z series]], and [[Honda ST series (minibike)|ST series]], [[Kawasaki Heavy Industries Motorcycle & Engine|Kawasaki]] KLX-110, KLX-110R,<ref>{{cite web|url=https://www.topspeed.com/motorcycles/motorcycle-reviews/kawasaki/2006-kawasaki-klx-110-ar1968.html|title = 2006 Kawasaki KLX 110 @ Top Speed|date = 7 February 2006}}</ref><ref>{{cite web|url= https://www.topspeed.com/motorcycles/motorcycle-reviews/kawasaki/2012-kawasaki-klx-110-ar121227.html |title = 2012 Kawasaki KLX 110 @ Top Speed|date = 15 December 2011}}</ref><ref>{{cite web|url=https://www.kawasaki.com/en-us/motorcycle/klx/off-road/klx110r|title=Kawasaki KLX110 &#124; Capable Off-Road Dirtbike Motorcycle|website=www.kawasaki.com}}</ref><ref>{{cite web|url=https://www.kawasaki.com/en-us/motorcycle/klr-klx/off-road/klx110r/2021-klx110r?cm_re=MPP-_-KLX%C2%AE110R:MODELS-_-VIEWSPECSDETAILS|title = 2021 Kawasaki KLX®110R &#124; Off-Road Motorcycle &#124; Reliable & Fun}}</ref> and [[Kawasaki KSR110|KSR110]], [[KTM 65 SX]],<ref name="ktm.com" /> [[Suzuki]] DR-Z50,<ref>{{Cite web |title=Suzuki Cycles - Product Lines - Cycles - Products - DR-Z50 - 2021 - DRZ50 |url=http://www.suzukicycles.com/Product%20Lines/Cycles/Products/DR-Z50/2021/DRZ50.aspx |archive-url=https://web.archive.org/web/20210116114955/http://www.suzukicycles.com/Product%20Lines/Cycles/Products/DR-Z50/2021/DRZ50.aspx |archive-date=16 January 2021 |website=suzukicycles.com}}</ref> DR-Z70,<ref>{{cite web|url=https://www.waynecycle.com/inventory/v1/2017/Suzuki/By-Body-Type/Motorcycle/Off-Road/DR-Z70/Base--Waynesboro-Virginia---4483301|title = 2017 Suzuki DR-Z70 Base &#124; Wayne Cycle Shop &#124; Waynesboro, VA}}</ref><ref>{{cite web|url=https://www.topspeed.com/motorcycles/motorcycle-reviews/suzuki/2008-suzuki-dr-z70-ar43196.html|title = 2008 Suzuki DR-Z70 @ Top Speed|date = 11 September 2007}}</ref><ref>{{cite web|url=https://ridecenterusa.com/Showroom/2018/Suzuki/Motorcycle/DR-Z/DR-Z70|title=2018 Suzuki DR-Z 70|website=Ride Center USA}}</ref><ref>{{cite web|url=https://www.cyclechaos.com/wiki/Suzuki_DR-Z_70|title = Suzuki DR-Z 70: Review, history, specs – CycleChaos}}</ref> and [[Suzuki DR-Z125|DR-Z125]],<ref>{{cite web|date=16 February 2007|title=Suzuki DR-Z125 @ Top Speed|url=https://www.topspeed.com/motorcycles/motorcycle-reviews/suzuki/suzuki-dr-z125-ar27430.html}}</ref><ref>{{cite web|url=https://www.motorcycledaily.com/2001/11/12november01entryleveldirtbikes/|title=Kawasaki and Suzuki Introduce Entry Level Four-Stroke Dirt Bikes « MotorcycleDaily.com – Motorcycle News, Editorials, Product Reviews and Bike Reviews}}</ref> SSR SR110TR,<ref>{{cite web|url=http://www.ssrmotorsports.com/store/pitbike/sr110tr.php|title = SSR Motorsports SR110TR}}</ref> and [[Yamaha Motor Company|Yamaha]] TT-R50E.<ref>{{cite web|url=https://www.yamahamotorsports.com/trail-motorcycle/models/tt-r50e|title=2022 Yamaha TT-R50E Trail Motorcycle – Photo Gallery, Video, Specs, Features, Offers, Inventory and more|website=www.yamahamotorsports.com|access-date=19 November 2020|archive-date=27 November 2020|archive-url=https://web.archive.org/web/20201127043400/https://www.yamahamotorsports.com/trail-motorcycle/models/tt-r50e|url-status=dead}}</ref>
* Yamaha used an automatic clutch system called YCCS on motorcycles such as the 2006 [[Yamaha FJR1300]]AE sports-touring.<ref>{{cite web |title=FJR1300AE – YCC-S Electric Shift System |url= http://www.yamaha-motor.com/sport/yccs.aspx |website=yamaha-motor.com |archive-url= https://web.archive.org/web/20120606024741/http://www.yamaha-motor.com/sport/yccs.aspx |archive-date=6 June 2012 |url-status=dead}}</ref> This system can be shifted either with the lever in the traditional position near the left foot or with a switch accessible to the left hand where the clutch lever would go on traditional motorcycles.
* The [[BRP Can-Am Spyder Roadster|Can-Am Spyder Roadster]]'s SE5 and SE6 5-speed and 6-speed transmissions.<ref>Archived at [https://ghostarchive.org/varchive/youtube/20211205/rMHKvDYvjpQ Ghostarchive]{{cbignore}} and the [https://web.archive.org/web/20201030003926/https://www.youtube.com/watch?v=rMHKvDYvjpQ&gl=US&hl=en Wayback Machine]{{cbignore}}: {{cite web| url = https://www.youtube.com/watch?v=rMHKvDYvjpQ| title = Can-Am Spyder with Semi-Auto Transmission Walkthrough | website=YouTube}}{{cbignore}}</ref>
* Those in several [[underbone]] motorcycles in the 1970s; the [[Suzuki FR50]], [[Suzuki FR80]], and Yamaha Townmate used 3-speed transmissions with a heel-and-toe gear shift.
* Some high-performance [[sport bike]]s use a trigger-shift system, with a handlebar-mounted trigger, paddle, switch, or button, and an automatically operated clutch.<ref name="flatshifter.com"/><ref>{{cite web|url= https://shiftfx.com/electronic-shift-transmission |title = Electronic Shift Transmission &#124; ShiftFX}}</ref><ref>{{cite web|url= https://www.cycleworld.com/sport-rider/shiftfx-new-take-on-semi-automatic-motorcycle-transmission/|title = ShiftFX: A New Take on the Semi-Automatic Motorcycle Transmission}}</ref>
* Some dirt bikes use this system, which is sometimes referred to as an auto-clutch transmission.<ref name="autowise.com"/><ref name="itstillruns.com"/><ref name="dirtbikehouse.com"/> These include the Honda CRF110F<ref>{{cite web|url= https://powersports.honda.com/off-road/trail/crf110f/specifications|title = 2022 CRF110F Specifications – Honda}}</ref><ref>{{cite web|url= https://powersports.honda.com/off-road/trail/crf110f?year=2020|title = 2022 CRF110F Overview – Honda}}</ref> and Yamaha TT-R110E.<ref name="yamahamotorsports.com"/><ref>{{cite web|url= https://www.yamahamotorsports.com/trail-motorcycle/models/2020/tt-r110e/specifications|title= 2020 Yamaha TT-R110E Trail Motorcycle – Specs, Prices|access-date= 20 November 2020|archive-date= 24 September 2021|archive-url= https://web.archive.org/web/20210924092749/https://www.yamahamotorsports.com/trail-motorcycle/models/2020/tt-r110e/specifications|url-status= dead}}</ref><ref>{{cite web|url=https://www.dirtrider.com/mini-dirt-bikes/|title=Mini Dirt Bikes, 50cc Dirt Bikes|website=Dirt Rider}}</ref> The conventional motorcycle foot shifter is retained, but the manual hand-clutch lever is no longer required.<ref>{{cite web|url=https://www.dirtrider.com/tests/parts-accessories/141_1203_rekluse_exp_auto_clutch_review/|title=Rekluse EXP Auto-Clutch Review|website=Dirt Rider}}</ref><ref name="yamahamotorsports.com"/> Semi-automatic transmissions in dirt bikes may be referred to as "automatic" despite a lack of automatic shifting.<ref>{{cite web|url=https://autowise.com/automatic-dirt-bike/#:~:text=Q%3A%20What%20Is%20A%20Semi,a%20clutch%20isn't%20required.|title=10 Best Automatic Dirt Bike Models|date=17 May 2021|access-date=30 August 2020|archive-date=25 October 2021|archive-url=https://web.archive.org/web/20211025210426/https://autowise.com/automatic-dirt-bike/#:~:text=Q%3A%20What%20Is%20A%20Semi,a%20clutch%20isn't%20required.|url-status=dead}}</ref>