bicycle

  1. P

    What if you wired 2 (OR MORE) alternators to a bicycle? With a battery could

    the first alt. power the second? I am thinking that the first alternator could be wired to a battery, and a second alternator that will work as a motor. If I did this would I be able to ride around for free? Could the first alternator power the second alternator, and keep the battery charged...
  2. A

    Is this a good bicycle trade?

    I want to trade my bmx bike for a fixie my bmx bike is worth about 70 dollars and the fixie I want is worth 200 dollars. So is this a good trade.... P.s my bmx bike is like new I reprinted it.
  3. T

    To Increase Bicycle Use, Improve Public Health, A Change In Cycle Track Policy Needed

    Bicycle engineering guidelines often used by state regulators to design bicycle facilities need to be overhauled to reflect current cyclists' preferences and safety data, according to a new study from Harvard School of Public Health (HSPH) researchers. They say that U.S. guidelines should be...
  4. D

    Is it necessary to ride a bicycle before u learn to ride a bike/scooter?

    Well i dont believe this, but 1 of my friend has this confusion. Im tryin to teach him how to ride a bike, he doesnt know how to ride a bicycle. He says u have to learn to ride a bicycle before learning to ride a bike/scooter. He doesnt know both. I tried to convince him it isnt true but he isnt...
  5. J

    bicycle paint protection, will 3m carbon fiber vinyl, or clear bra?

    im trying to protect my frame from cable scratches as i noticed cables hitting the frame and causing the paint to chip (which is also annoying because it makes bell like noise), so im going to cover that area with something just not sure which will be more durable and will have better protection...
  6. B

    Your roommate is working on his bicycle and has the bike upside down. He

    spins the 64.0 -diameter wheel, and y? Your roommate is working on his bicycle and has the bike upside down. He spins the 64.0 -diameter wheel, and you notice that a pebble stuck in the tread goes by three times every second. What is the pebble's speed? What is the pebble's acceleration?
  7. J

    Why buy a bicycle on line? Doesn't pay?

    More of an observation than a question. 2013 Diamondback Insight 2 on Amazon.com is $550. You assemble the bike and no warranty. The only way to receive a warranty is by having an authorized Diamondback or Raleigh dealer assemble it...
  8. P

    Bicycle in taco bell drive thru?

    My question is not if ill be served, but will the sensor notice me on a bicycle?
  9. M

    The best Black Friday bicycle deals

    [No message]
  10. T

    Implementing A Bicycle Infrastructure Could Halve The Risk Of Cycling Injuries

    Certain types of routes carry much lower risk of injury for cyclists, according to a new University of British Columbia study on the eve of Vancouver's Bike to Work Week. The study, published today in the American Journal of Public Health, analyzed the cause of 690 cycling injuries in Vancouver...
  11. G

    The Bicymple Is a Simpler Bicycle Without Any Bike Chains [Video]

    A bicycle is already pretty damn simple. Two wheels, a frame, a seat, pedals and a chain. What happens if you remove the chains though? That would give you the Bicymple—a bicycle that's even more simple than you could ever imagine. More »
  12. T

    Impact And Crush Tests Show Children's Bicycle Helmets To Be Effective

    A favorite physical activity engaged in by Americans is bicycling, and children are perhaps its most ardent participants; it has been estimated that 70% of children ages 5 to 14 ride bicycles. Bicycling is not without its dangers, however, and one of the worst is the risk of head and brain...
  13. A

    Floating Bicycle Photos From Zhao Huasen: A Fun Reminder Of Why We Love Bikes

    The bikers in Zhao Huasen's 'floating bicycle' photos are missing more than just their helmets…but that's kind of why we love the whimsical series. Huasen has photoshopped out the bikes (a la U.S. photographer Rachel Hulin's flying baby set), but left the shadow and background intact so you can...
  14. M

    Recall recap: Ford Escape, Target flashlights, IKEA highchairs and useless bicycle he

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  15. M

    Why can't relationships be as easy as riding a bicycle?

    this question was inspired by a dream where i was riding a bicycle to try to get to my destination which i know meant trying to make things work to get to my goal of having my relationship work. why can't having a relationship be as easy as riding a bicycle? i think for some people it might be...
  16. 1

    Bombay Bicycle Club or Kasabian Tour?

    HI, I was wondering whether either of these artists are coming to Madrid on a European tour, if you know any other good people coming to Madrid please say, I'm going to see Arctic Monkeys... THANKS :)
  17. T

    'Bicycle Sign' Can Aid Differential Diagnosis Of Parkinson's Disease In Any Setting

    In a new study published in the Journal of Parkinson's Disease, Japanese researchers report that the ability to ride a bike can differentiate between atypical parkinsonism and Parkinson's disease, regardless of the environment or situations for bicycling. Atypical parkinsonisms are disorders...
  18. J

    Is it possible to ride a bicycle while carrying a trombone? or are trombone...

    ...cases too long for a bike? I need to be able to transport my trombone to different gigs around the city and have no car.
  19. M

    Cheap led bike lights,led bicycle light,give me a good website?

    i need some Cheap led bike lights,led bicycle lights,including bicycle front light or bicycle headlight etc,if u have some good websites,PLZ help me ,i will thanks for it!
  20. G

    I Hope the Verbal Bicycle Bell Has a Curse Button [Bicycles]

    I don't know how effective the Verbal Bicycle Bell is compared to a regular bell or your own lungs, but it claims to generate 80 decibels with its 44mm speaker. It screams "On your left!" and holds a 20-second recording. More »
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