Thursday, July 31, 2008
Wednesday, July 30, 2008
Tuesday, July 29, 2008
Monday, July 28, 2008
Sunday, July 27, 2008
Saturday, July 26, 2008
Friday, July 25, 2008
"Used bicycles can transform the economic and social condition of families," says Schweidenback. "[They] give people access to jobs, health care and education that is too distant for walking."
Since 1991, Schweidenback's nonprofit Pedals for Progress has collected and shipped more than 115,000 used bicycles to 32 developing countries worldwide, where they are sold at a low cost to local residents like Don Roberto Garcia.
"A used woman's mountain bicycle changed my life," says Garcia, 54, a house cleaning supplies salesman in Nicaragua who works six days a week to support his six children and buy medicine for his wife, who suffers from cancer.
Read the entire story here.
Also, see this story from Chicago from a while back.
Thursday, July 24, 2008
Monday, July 21, 2008
Sunday, July 20, 2008
Friday, July 18, 2008
Double check the adjustment in all gears. In low gear, you should be able to see that the sprocket moves faster than the wheel, and the hub should not make a ticking sound while being pedaled forward. In middle gear, the sprocket should move at the same speed as the wheel, and you may hear a slow ticking as you pedal. In high gear, the wheel should turn faster than the sprocket. The same slow ticking may be audible in high gear.
If you hold the trigger halfway between middle and high gear, the hub should disengage so that you can spin the pedals forward without going anywhere. If it freewheels forward in high gear, the cable is to tight or has too much friction to release properly. If it freewheels forward in middle gear, the cable is too loose.
If you're anything like me, you will have to make many minute adjustments to the cable tension until you get it just right. The key points again: 1) properly seat indicator spindle in hub; 2) freewheel in high gear means cable is too tight; 3) freewheel in middle gear or low gear means cable is too loose; 4) there should be no ticking sound when pedaled forward in low gear; 5) hub should freewheel between 2nd and 3rd gear.
If you would like to read Sheldon Brown's original article in its entirely, go here. Sheldon also has lots of other great information about three speed (a.k.a. planetary, or epicyclic) gearing, including diagrams that show what's going on in there.
By the way, my experience related here is based on the Sturmey-Archer AW hub that is original to my Columbia, I have no experience with other S-A models or other hub-geared systems.