After a major update last year, the 2025 Yamaha YZ250F returns with small refinements, mostly to the suspension.

Then there was a slowdown when motorcycle manufacturers started focusing on four-stroke development, and some like Honda ... The red Austrian bike has a price tag of $8,349. 2023 Yamaha YZ250/YZ250 ...

Light, powerful, fun and pro-grade, the 2013 Yamaha YZ250 is a 2-stroke MX motorcycle which can be taken to the track right from its crate. It is animated by the 2T version of the YZ250F engine ...

The backstroke was first contested at the 1900 Paris Games. Current Olympic distances are 100m and 200m. The breaststroke is a highly technical stroke and is therefore difficult to master. It is the ...

Two new four-stroke rammers, known for improved fuel efficiency, reduced emissions, and lower operating costs, have been launched to the South African market. The new models are said to represent ...

You may have heard your car has a four-stroke engine, but you're not sure what that means. Why are there four? And what is a stroke, anyway? A modern gas engine most commonly uses pistons and a ...

Porsche has patented a revolutionary six-stroke internal combustion system. Contrast to all modern combustion engines that run the four-stroke Otto cycle that typically features one compression ...

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New Laser-Based Headset Can Measure Blood Flow, Assess Risk of Stroke Sep. 30, 2024 — Researchers have developed a laser-based device that can measure blood flow noninvasively and differentiate ...

Acute ischaemic stroke induces persistent innate immune memory through epigenetic changes in myeloid progenitors in the bone marrow, and this innate immune training contributes to cardiac ...

Can you afford to be a foster carer? Money Box looks at the costs involved in fostering children. The incredible story of a lobsterman at sea Mathematician Hannah Fry tells the story of a man lost ...