…thrust in the lower revs of second and third gear. Though the switch to ESPFI is sure to be in response to the ever-changing demands of tougher emissions standards, riders benefit from a bike that has gained more torque on the low end while burning cleaner, too. Harley claims that the four?Sportster…

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…to reduce vibes, improve fueling and increase fuel efficiency. The KLX250S, which is slated as a 2009 model, also meets California's evaporative emissions standards, making it 50-state legal. Other modifications include changes to steering geometry for improved handling and stability.The following press…

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…areas: sound and emissions. While the issues are related - with loud exhausts a subject worthy of an article all its own - in this story we will examine the quieter issue of pollution emissions regulations and the way it is changing the motorcycle industry.Restrictions to exhaust emissions were brought to…

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…as we have yet to sample any electric-only designs yet, although we're working on it.) Electric vehicles like the Vectrix ZEV scooter, produce no emissions and operate at a high level of efficiency.Right now the biggest drawbacks to electric motorcycles are low top speeds and short ranges. Most bikes…

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…tasked with regulating CO2 emissions by the Supreme Court. Now California and 15 other states are fighting to do it their own way.What do the Supreme Court, California and the EPA have to do with motorcycles? Well, decisions by all three could change the way vehicle emissions are regulated.The motorcycle…

…as a motorcycle or scooter can get two, three, sometimes four times the MPG of four-wheelers using the same roads. Less fuel use means less CO2 emissions, now recognized as a pollutant and long known to cause climate change. Altogether, motorcycles are very green machines, capable of everyday transportation…

…catalytic converters. California's motorcycle engine emission standards are already the strictest in the nation and, because of their relatively low yearly mileage totals when compared to other vehicles, the state's motorcycles have the lowest total emissions of any motor vehicle category in California. Riders…

…rule rather than the exception.) The potential development of zero-emission vehicles (ZEV), like electric-powered scooters, would improve hydrocarbon/CO2 emissions in cities. Zero emission vehicles do generate indirect CO2 emissions if the energy is created by fossil-fuel powerplants ? although electric…

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…peak power! Yes, you read that correctly. Emissions and noise levels are lower, peak power is higher, the mid-range hit is stronger and smoother and low-end torque has been increased. A win-win solution for all, in our books.To achieve those stringent emission levels, a third honeycomb catalyzer was added…

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…of motorcyclists." California's motorcycle engine emission standards are already the strictest in the nation and, because of their relatively low yearly mileage totals when compared to other vehicles, the state's motorcycles have the lowest emissions of any motor vehicle category in California. More…