Search results

  1. T

    RSWB

    From an experimental perspective, there's no real limit on wheelbase either way - consider those folding aluminum scooters with polyurethane wheels, or even a unicycle as the ultimate SWB. Skate bikes are another attempt at really-short-wheelbase vehicles, for example. On the long end, the...
  2. T

    Cruzmota

    From http://www.onlineconversion.com/power.htm, 2 horsepower [international] = 1 491.399 74 watt. I doubt that's legal in any first-world nation, but you probably won't be in trouble until you get stopped for something else. Also, friction-drive is simple but inefficient, so you may not be...
  3. T

    Qrings

    Aha! I'd missed that they stated the axes were at 90°; so they haven't adjusted for the fact that maximum stroke force comes only 45° before BDC. Not so! Even assuming that 10% is the maximum useful variation in ratio, we still have a range of angles between the two axes, and a wide range of...
  4. T

    Qrings

    Has anyone confirmed that Qrings are truly elliptical, and haven't taken this possibility into account? Cam mechanics would allow an unlimited number of configurations, and the "perfect" shape would depend on both pedalling style and leg proportions (all variables from your hip to the part of...
  5. T

    Sofrider Reviews

    :oops: Got that from Greg's review. Guess I need my own V2 to analyse, huh? I've almost convinced the Boss, but they have to be in stock again...
  6. T

    Getting ready for winter...

    Peder, I'm guessing you've had a few winters with regular bikes. Do you find the Cruzbike's front-wheel-drive is a benefit in slippery riding or does it spin out more often? Would your answer depend on whether you're on snow or ice?
  7. T

    Sofrider Reviews

    Question from someone without a Cruzbike yet... is there room for the pump to be clipped to the otherwise useless under-seat bottle cage bolts?
  8. T

    Getting ready for winter...

    Can't speak for the Cruzbike (yet!) but check out http://www.icebike.org for tips & tricks for everything from commuting to crazy stuff. Take their advice and avoid steel studs if your local road crews use salt - carbide and carbide composite spikes won't rust out. As far as tires go, I can...
Top