Cities can only do so much to improve bicyclists’ safety — bike lanes and automatic traffic light sensors are great, but motorists are really the ones who have to pay attention for bike riders to be safe. An intrepid mechanical engineer has one solution: Make bike lights as obvious as car lights.
I love riding my bike, but my purple plastic helmet is a definite impediment to fashion. It messes up my hair, and what am I supposed to do if I decide to wear red one day? I might — gasp — not wear a helmet at all. Thankfully, the Swedes have now invented this thing. At last, cyclists everywhere can protect their heads and their sense of style.
It's a collar with an airbag that inflates around your head. It actually works, as evidenced by the incredible video below, in which a car driving at 12 MPH crashes into a bike dummy.
A Hungarian design team has unveiled a new chainless bike, powered by steel wires, that easily disassembles and can be organized for touring or racing.
The “Stringbike” uses two steel cables attached to pulleys, which move on swinging kidney-shaped discs as you pedal. The discs replace a traditional round gear system, and you can install different discs depending on your needs, according to the Web site Hungarian Ambiance.
Cycling helmets serve but one singular purpose: protecting your cranium when speed and gravity conspire against your cycling prowess. But a helmet that's damaged -- even slightly damaged -- can fail when you need it the most. Compounding the problem is the fact that it's very hard to detect hairline cracks or other flaws in a cycling helmet that result from routine wear and tear. That's why researchers at Germany's Fraunhofer Institute have engineered the first bicycle helmet that literally makes a stink when it becomes damaged.
As far as urban bike concepts go, the Pulse from Teague (the designers behind the original Xbox among other things) looks exciting both from a fashion standpoint and a practical one. Sleek, functional and with a frame that glows with an ethereal blue light -- what more could you want?
If you've ever wanted to strap yourself into one of those modern electric rides from Currie Technologies, now's your chance. A veritable smörgåsbord of surplus motors, gears, and controls is now available from All Electronics. Don't worry about this selection being a bunch of mismatched DIY surplus junk, either. All of these electric vehicle components are genuine Currie Technologies parts.
Last year bicycle manufacturer Shimano debuted its years-in-the-making electronic gear shifting system, the Dura Ace 7970 Di2. Electronic shifting, which replaces traditional steel cables with a precise CPU-controlled system of sensors and motors, had long been a goal of bike makers. A workable solution, however, proved elusive. So when Shimano finally got it right with the Dura Ace system, it earned PopSci's 2008 Best Of What's New Grand Award in the Recreation category.
This cycle’s shock adjusts itself to suit the ups and downs of your terrain
By Berne Broudy Posted 07.17.2008 at 5:49 pm 3 Comments
To power up a mountain, you need a stiff bike frame that transfers pedaling force straight to the wheels. But zooming downhill without jolts or spills calls for more cushioning. So Kona's Coilair bikes feature a lever that automatically shortens the shock when you pedal and lengthens it when you coast. The lever also pushes the seat closer to the ground, lowering the center of gravity to match the stability of a dedicated downhill racing bike.