Four-stroke
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New Yamaha motocrossers unveiled
Yamaha has just unveiled its revised 2009 Motocross motorcycle range. The Four-stroke YZ250F and YZ450F gain a new lighter swingarm and rear wheel... Full Article At MCN - News
MotoGP Rule Changes: 250GP is History
Posted on 06.29.2008 08:10 by Holly McBain Filed under: | Moto GP | industry news Today, the Federation Internationale de Motocyclisme (FIM) announced the end of the 250GP class. The sanctioning body unanimously... Full Article At Top Speed - motorcycles
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Aprilia RSV-4
The Aprilia Superbike, the bike which from 2009 will bring the Noale based company back to Four-stroke racing, has been unveiled for the first time during the ... Full Article At Bikeintro Motorcycles
First Look: 2009 KTM400 EXC
Visordown gets the first shot of KTM's new Four-stroke blaster... Full Article At Visordown - News
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Casey Stoner reserves judgement on new 600cc proposal
Reigning world champion Casey Stoner has said he will reserve judgement on the merits of a new 600cc Four-stroke series to replace the current 250GP ... Full Article At MCN - Sport
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Dorna boss shrugs off 600cc conflict
MotoGP boss Carmelo Ezpeleta has denied a new 600cc Four-stroke class to replace the 250GP series in 2011 will cause conflict with World Superbike bosses. Despite fears that a new 600cc class would... Full Article At MCN - Sport
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2009 Honda CRF100F Features & Benefits
TORRANCE, Calif. - Jun 27 — The CRF100F remains one of the most popular off-road bikes of all time, courtesy of its amazingly versatile yet ultra-tough nature. This proven Honda has been employed to hone riding skills by a far-reaching range of riders... Full Article At Honda News
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2009 Honda CRF70F Specifications
TORRANCE, Calif. - Jun 27 — Model: CRF70F Engine Type: 72cc air-cooled single-cylinder Four-stroke Bore and Stroke: 47mm x 41.4mm Compression ratio: 9.0:1 Valve Train: SOHC; two-valve Induction: 13mm piston-valve Carburetor Ignition: CD Transmission... Full Article At Honda News
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2009 Honda CRF50F Features & Benefits
TORRANCE, Calif. - Jun 27 — Featuring an inverted fork, 49cc Four-stroke engine, automatic clutch and three-speed gearbox, it's no wonder this little Honda CRF50F has been the model of choice... Full Article At Honda News
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2009 Honda CRF50F Specifications
TORRANCE, Calif. - Jun 27 — Model: CRF50F Engine Type: 49cc air cooled single-cylinder Four-stroke Bore and Stroke: 39mm x 41.4mm Compression ratio: 10.0:1 Valve Train: SOHC; two-valve Induction: 13mm piston-valve carburetor Ignition: CD Transmission... Full Article At Honda News
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2009 Honda CRF100F Specifications
TORRANCE, Calif. - Jun 27 — Model: CRF100F Engine Type: 99cc air-cooled single-cylinder Four-stroke Bore and Stroke: 53mm x 45mm Compression ratio: 9.4:1 Valve Train: SOHC; two-valve Induction: 22mm piston-valve carburetor Ignition: CD Transmission... Full Article At Honda News
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2009 Honda CRF80F Features & Benefits
TORRANCE, Calif. - Jun 27 — The CRF80F features Honda's legendary reliability, big-bike styling, nimble handling and wonderfully balanced performance. It's the perfect match for young riders ready to step up to a manual clutch machine. ... Full Article At Honda News
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2009 Honda CRF70F Features & Benefits
TORRANCE, Calif. - Jun 27 — The CRF70F serves as a great introduction to off-road motorcycling, thanks to its automatic clutch, low Seat height, three-speed transmission, and low-maintenance 72cc air-cooled single-cylinder ... Full Article At Honda News
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2009 Honda CRF80F Specifications
TORRANCE, Calif. - Jun 27 — Model: CRF80F Engine Type: 80cc air-cooled single-cylinder Four-stroke Bore and Stroke: 47.5mm x 45mm Compression ratio: 9.7:1 Valve Train: SOHC; two-valve Induction: 20mm piston-valve carburetor Ignition: CD Transmission... Full Article At Honda News
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250GP officially replaced with four-stroke 600s
FIM made it official today in Assen. 600cc four-strokes will replace 250cc two-strokes in 250GP beginning in 2011. Further rules will be decided at some non-specific future date. Dorna’s full... Full Article At Hell for Leather
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FOUR-STROKE 600S WILL REPLACE THE 250GP CLASS
Four-stroke 600cc machines will replace 250cc two-strokes as the first support class in MotoGP, it was revealed at Assen. A statement by ... Full Article At Bike Sport News
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For sale: hybrid bicycle - gas, electric, human. Golden Eagle Bike Engine Kit (Subaru 4-stroke), mounted on Charger electric bike (whizzer)(Chug)
For sale: hybrid bicycle. Human: you Electric: Charger electric bike Gas: Golden Eagle Bike Kit, Robin/Subaru 35cc Four-stroke gasoline engine, centrifugal clutch, and belt drive (up to 200 mpg) $800 cash (the Golden Eagle Bike Engine Kit sells for... Full Article At Wikio - Blogs