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  2. Seatpost - Wikipedia

    en.wikipedia.org/wiki/Seatpost

    A "plain" seatpost (silver) connects the saddle to the frame (red). A microadjust seatpost (black) of a Trek Fuel 80 mountain bike. A seatpost with a significant setback on a BMX bike. A bicycle seatpost, [1] seatpin, [2] saddlepole, [3] saddle pillar, [4] or saddle pin [5] is a tube that extends upwards from the bicycle frame to the saddle ...

  3. Health and environmental impact of transport - Wikipedia

    en.wikipedia.org/wiki/Health_and_environmental...

    A European study of nearly 2000 participants showed that an average person cycling 1 trip/day more and driving 1 trip/day less for 200 days a year would decrease mobility-related lifecycle CO 2 emissions by about 0.5 tonnes over a year, representing a substantial share of average per capita CO 2 emissions from transport (which are about 1.5 to ...

  4. Bicycle saddle - Wikipedia

    en.wikipedia.org/wiki/Bicycle_saddle

    The part that connects the rails to the seatpost is known as the "saddle clamp". It may be built into the top of the seatpost, or the seatpost may be essentially a pipe that provides a cylinder at the top (often 7 ⁄ 8 in (22 mm)) for a separate clamp to attach. The upper attachment point must be compatible with the rail configuration (though ...

  5. Reinforced carbon–carbon - Wikipedia

    en.wikipedia.org/wiki/Reinforced_carboncarbon

    The Dunlop carbon brakes as used on the Concorde airliner. The brake disc of this Ferrari race car's braking system is made from carbon fibre-reinforced silicon carbide which is a CMC rather than a C/C. Carbon fibre-reinforced silicon carbide (C/SiC) is a development of pure carboncarbon that uses silicon carbide with carbon fibre.

  6. Impact of self-driving cars - Wikipedia

    en.wikipedia.org/wiki/Impact_of_self-driving_cars

    Arstechnica calculated 102 crashes over 6 million miles, but claimed crashes were low-impact and still safer than human driving. [23] Waymo claimed only 3 crashes with injuries over 7.1 million miles, nearly twice as safe as human drivers. [24] As more cities give permission for AVs to operate, incidents and complaints have increased. [1]

  7. Health and environmental effects of battery electric cars

    en.wikipedia.org/wiki/Health_and_environmental...

    This impact, however, is still less than that of traditional vehicles, as the large size of power plants allow them to generate less emissions per unit power than internal combustion engines, and electricity generation continues to become greener as renewables such as wind, solar and nuclear power become more widespread. By 2050, carbon ...

  8. Car seat - Wikipedia

    en.wikipedia.org/wiki/Car_seat

    Anti-submarine seating is a safety feature that may be more important for the front seats than the rear seats. [8] A child safety seat or child restraint system is a restraint which is secured to the seat of an automobile equipped with safety harnesses or seat belts, to hold a child in the event of a crash. All 50 states require child seats ...

  9. Carbon fibers - Wikipedia

    en.wikipedia.org/wiki/Carbon_fibers

    Carbon fiber sunglasses temples and carbon fiber bicycle frame tube. Carbon fiber can have higher cost than other materials which has been one of the limiting factors of adoption. In a comparison between steel and carbon fiber materials for automotive materials, carbon fiber may be 10-12x more expensive. However, this cost premium has come down ...

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