Originally Posted by Machka
And I also agree with Rowan that if someone has some difficulties with taking one hand off the bicycle in order to signal, that person should consider taking a bicycle handling course. Your local cycling association will likely offer some in the early spring. Not only is it a good idea to feel comfortable removing one hand for signalling purposes, but it's also useful for things like grabbing your bottle to take a drink, eating an energy bar, wiping bugs out of your eyes, making adjustments to your clothing, stretching, and so on.
Great, another insulting snotty comment. Please do the following experiment for me: ride down the road at 30 MPH one-handed, start guzzling out of your water bottle, hit an unexpected rock, pot-hole or road warp at the same time, then tell me how smug you look with road-rash on your face. I've been riding on two wheels for about 30 years - I don't need lessons like some little kiddie. Rocks, sand, gravel, glass, cracks, car parts, potholes and those annoyingly invisible road warps are just a fact of bicycling life. Hitting them one-handed WILL throw you off balance, and riding one-handed makes it very difficult to recover. Even more so if you're trying to brake or turn at the time, though I can't imagine trying to brake one-handed under any circumstances. Been there, done that.