Four-stroke
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First Look: 2009 KTM400 EXC
Visordown gets the first shot of KTM's new Four-stroke blaster... Full Article At Visordown - 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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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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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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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 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 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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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 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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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
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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
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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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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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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
Yamaha's Vity Solution to the Fuel Crisis?
With fuel prices going through the Roof, congestion charges on council agendas everywhere and vehicle tax on the rise, what a great time for Yamaha to bring to the market the all new ... Full Article At London Bikers - News
Yamaha Launch the XT660Z Tenere
The brand new Yamaha XT660Z Tenere has now arrived at authorised Yamaha dealerships. Initially available in limited quantities, customers will need to be quick of the mark to start their own ... Full Article At London Bikers - News
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Aprilia To Return To MotoGP
The proposed changes to the 250 class - with the 250 cc Two-stroke twins likely to be replaced with rev-limited, spec ECU 625cc Four-stroke inline fours - is having an unexpected effect on the... Full Article At Kropotkin Thinks
Valentino Rossi: Two Wheels God
Valentino Rossi: two wheels god Last Updated: 12:01am BST 17/05/2008 Page 1 of 3 Valentino Rossi's dominance of motorbike racing, along with his philosophy that generating excitement... Full Article
250GP replacement to be unveiled Saturday
The Four-stroke replacement for 250cc Two-stroke racing will be unveiled at the Grand Prix de France this weekend. It’s expected that the class will be replaced by 600cc ... Full Article At Hell for Leather