I've read some pointless threads in my life but this one is an order of magnitude in the unbelievable category. Fietsbob is on only poster even remotely cogent, perhaps one or two others but my eyes were pretty glazed after 8 or 9 posters actually agreed with the o.p.'s premise that a piffling 5 or so miles per hour made some kind of difference in the grand scheme of things. Lance Armstrong works hard to sustain 25mph, the rest of us work hard to sustain 20mph. Quite a few are maxed out at 16mph. IF cycling is safer at 20 mph than 15mph... ... I guess a lot of us should just sell our bikes and take the bus because, tell the truth, a lot of us can't GO 20mph.

H