I tried the child-seat on the bike today. Not a huge success - cycling with it was fine but stopping was not good and I dropped the bike with small girl on it Luckily just on the grass, and not far as I caught the bike and she was helmetted and well strapped in so completely unhurt, but I still feel pretty bad about it. I think I will try again - was practising with a 28lb bag of potatoes this afternoon - but I think I will get a trailer for her.