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1. Dan Gurney’s 250bhp twin

   ... It’s yet to run, but the designs for his new twin-cylinder four-stroke are complete and have turned up some scarcely believable figures ... Dan Gurney autobiography four-stroke internal combustion engine motorcycle engine design ...

   Visordown News - 23/09/2019 - 09:35 - 0 comments

2. Honda reveals updates for 2023 CRF50F, CRF110F and CRF125F

   ... has revealed its 2023 model year range of small-capacity four-stroke motocross bikes.  Of course, this includes the CRF50F, ... when it comes to the engine, we find a single-cylinder 49cc four-stroke with an 11-piston valve carburettor, adjustable throttle limiter, ...

   Alex Whitworth - 03/08/2022 - 10:29

3. Honda’s history of MotoGP magic

   ... wins and championships than any other manufacturer in the four-stroke MotoGP era, Honda’s success in top-level motorcycle sport is ... Honda RC211V (2002-2006) When MotoGP went four-stroke in 2002 Honda took the opportunity to the conventional ...

   Simon Hancocks - 07/04/2020 - 17:00 - 0 comments

4. Top 10 Learner 125cc motorcycles

   ... Unlike most classes of bike you can still choose a four-stroke or a two-stroke. Two-strokes tend to be faster, lighter, less ... big bike, supersports looks with a durable, economical four-stroke engine. This makes the YZF unique in the class. Yamaha wanted a ...

   rgo - 22/09/2019 - 21:21 - 1 comment

5. Road Test: Honda CRF450 vs. Yamaha YZ426

   ... Forget the 'thumpers' of old - this new generation of four-stroke motocrossers aren't just keeping up with the traditional yowling ... out the gate of the Japanese companies with a small, revvy four-stroke dirtbike package, and the 426 is a massive seller for Yamaha. These ...

   Jonathan Bentman - 22/09/2019 - 19:20 - 0 comments

6. A brief history of the Suzuki GSX naked motorcycle range

   ... 45 years to the creation of Suzuki’s first multi-cylinder four-stroke road bike. Although the Japanese firm had produced the four-stroke single-cylinder Colleda 125 and 93cc machines as far back as 1955, ...

   Simon Hancocks - 04/05/2021 - 09:44

7. First Look: TSS ZX-10R two-stroke

   ... Aussie engine madness meets Jap four-stroke chassis ... BORED OF the never-ending gaggle of Japanese four-stroke superbikes? Then The Two Stroke Shop, located in Tropical North ...

   Visordown News - 19/09/2018 - 03:49 - 0 comments

8. New Vespa Primavera

   ... of the same name. It comes as a 125cc or 150cc four-stroke and 50cc two-stroke. The 150 and 125 models have a new ... verion which Piaggio says has ‘ the most powerful four-stroke 50cc engine on the market' at 4.35hp, but it's only for markets ...

   Visordown News - 19/09/2018 - 03:49 - 0 comments

9. A history of the Honda CRF450R

   ... Aluminium twin-spar frame Lightest production four-stroke MX bike The lightest four-stroke motocrosser of its day, the original CRF450R set the stage for ...

   Simon Hancocks - 20/07/2020 - 13:18 - 0 comments

10. Casey Stoner: “MotoGP must be dangerous, two-strokes difficult, unpredictable"

    Casey Stoner says the move to four-stroke engines and overt use of electronics have dampened MotoGP down to ... and when I went from 250cc to MotoGP, I found the four-stroke a lot easier ”. “There is the electronics, which takes away ...

    Ollie Barstow - 01/11/2021 - 08:47

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