Walking wounded

After my six-mile run yesterday, I went out for a 2 hour bike ride on the "new" bike today, with my sister in law - she was riding my trusty old mountain bike. I've been pathologically scared of falling off this one, and turns out I was right to be: after the whole ride, coming back up a very steep hill, I was trying to tack back and forth and when I was turning at the edge of the road I skidded out and fell down hill, taking all the impact on my left knee and right wrist. The knee is just badly skinned but the wrist really hurts. I've been icing it and took ibuprofen - and I suppose if anything was broken there's no way I'be typing right now, so it must just be a soft-tissue injury.

I officially give up on this bike and am going back to the Trek - I'd rather be slow, steady, comfortable and safe than fast, uncomfortable and unstable. When $700 drops into my lap I'll buy a Giant OCR2 or something like that.

Meanwhile, how does one figureo ut weight watchers points for bike-riding. According to their site, 120 minutes of "fast" cycling gets you 19 points. But for at least a third of the time, I'm coasting downhill! Should you only count the time you're actually working, I wonder?