Gibbs Quadski

{{Short description|Amphibious quad bike}}

{{Use dmy dates|date=July 2024}}{{Use British English|date=July 2024}}

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{{one source|date=February 2021}}

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File:Quadski on land.jpg

The Gibbs Quadski is an amphibious quad bike/ATV, launched in October 2012 by Gibbs Sports Amphibians. The Quadski is a 4-stroke amphiquad that converts from a quad bike/ATV to a personal watercraft. It can attain a top speed of {{Convert|72|km/h|mi/h|0|abbr=on}} on both land and water.{{Cite web |date=2020-04-14 |title=Gibbs Quadski Review: Top Speed, HP, Specs, Prices [Video] |url=https://www.jetdrift.com/gibbs-quadski-review/ |access-date=2024-02-14 |website=JetDrift |language=en-US}} The Quadski uses a marine jet propulsion system as well as wheel retraction, allowing it to transition between land and water.

The Quadski, developed and manufactured by a team based in Detroit, shares several features with the Gibbs Aquada. It is powered by a marinised version of BMW Motorrad's 1.3-litre engine from the K1300S, producing {{Convert|100|kW|PS|abbr=on}}. However, on land, the power is reduced to approximately {{Convert|60|kW|PS|abbr=on}}.{{cite web |date=2013-01-17 |title=After Years of Teasing, Gibbs is Finally Ready to Produce an Amphibian |url=http://www.fastamphibians.com/after-years-of-teasing-gibbs-is-finally-ready-to-produce-an-amphibian/ |url-status=dead |archive-url=https://web.archive.org/web/20181021224523/http://www.fastamphibians.com/after-years-of-teasing-gibbs-is-finally-ready-to-produce-an-amphibian/ |archive-date=2018-10-21 |publisher=FastAmphibians.com |accessdate=2013-04-06}} To switch to water mode, the driver presses a button that retracts the wheels into the vehicle's body and disconnects them from the drive train. In water, the Quadski uses a stone guard-protected intake to draw in water, which is then propelled by an engine-driven impeller through stator blades and a nozzle. Steering is controlled by a nozzle at the rear, directed via the handlebars.

The Quadski can travel for about two hours on water and has a range of approximately {{Convert|600|km|mi|abbr=off}} on land.

About 1,000 Quadskis were produced in Michigan{{Cite web |title=Gibbs Quadski |url=https://quadski.com/about/ |access-date=2024-05-16 |website=quadski.com}} between 2012 and 2016, when production ceased. The vehicle is no longer manufactured by Gibbs or under any official licence. A Chinese company, Hison,{{Cite web |title=HS-006J5-product,Jet-Ski, amphibious motor boats, power surfboard - Jiujiang Poseidon |url=http://www.hisonjetski.com/show.php?id=23 |access-date=2024-02-14 |website=www.hisonjetski.com}} has attempted to copy the Quadski, but their version uses images of the actual Quadski in marketing materials and lacks strong evidence of functioning as a true amphibian vehicle and is legally questionable.

Official Quadski parts and technical support are supplied by Gibbs Amphibians in New Zealand.{{Cite web |title=Quadski |url=https://gibbsamphibians.com/platform/quadski/ |access-date=2024-05-16 |website=Gibbs Amphibians |language=en-US}}