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Staying active is crucial for seniors' health and well-being, but traditional forms of exercise can become challenging with age. Outdoor cycling, for instance, might lose its appeal due to ...
The bike had an 11,600 rpm redline [8] [better source needed] power and torque close to its 250 cc two-stroke rivals. [1] It benefited from engine compression braking, which allowed the engine to slow the bike down during deceleration, giving the brakes a rest. [1] The 1998 YZ400F was the first bike to come stock with a Keihin FCR carburetor.
[4] [5] [6] As a general description, the ST-series bikes have a bench-style saddle, small fat tires, and folding handle bars. They have an air-cooled 4-stroke engine with either a 3-speed semi-automatic transmission, with an automatic centrifugal clutch, or a 4-speed manual gearbox. The ST90 uses larger 3.00-14 tires, compared to the 3.50-10 ...
The full sized motocross bikes are equipped with liquid-cooled, single cylinder four-stroke engines that are available from 149 cc (9.1 cu in) to 449 cc (27.4 cu in). They now have dual-sport motorcycles. The more trail friendly CRF's have simple air-cooled engines, and are
The motor generates a power output of 24.5 bhp at 6,500 rpm (18.02 KW) and a maximum torque of 32 Nm at 4,000-4,500 rpm. The engine also includes an oil cooler, a first among motorcycles manufactured by Royal Enfield India. The bike employs electronic fuel injection and the engine is mated to a 5-speed constant mesh transmission. [11]
Introduced in 1979, the twin-shock Honda XR 500 was the first "XR" model. The engine was a four-stroke, four-valve OHC, 497 cc (30.3 cu in) "Pentroof" engine. The bike had a conventional 18" rear wheel but an unusual 23" front wheel which was supposed to be better for riding over potholes and ruts.
Clews started building motocross bikes in his garage. Having no access to BSA works engines, Clews made his own extensive improvements to the standard BSA B50 500 cc engine, obtained by breaking up B50 MX bikes. His reputation grew as a builder of four-stroke motocross bikes that were capable of competing with the dominant two-stroke bikes.
Hiking in extreme heat poses dangers, including heat exhaustion, heat stroke, hyponatremia, a condition where the sodium level in the blood falls to dangerous levels, and death.