I need advice, please. I am in the process of buying a new bike but am getting cold feet. I want a fixed flip-flop jobbie. I only cycle 28 miles a day - round trip - across London Mon-Fri with no slopes and have done this journey since last Summer. I cycle all weathers and all Winter across potholes etc and so want something fast, sturdy and reliable. I currently have a sit up and beg bike but think I can go faster on something a bit "racier". Plus I want to look a bit less nerdy as well (vanity creeping in). So advice is welcome. I initially budgetting £360. With CTC membership I could get a new single speed from the CTC shop. But then I found gumtree and saw 2nd hand sible-speedsters going for about £250-£300. I thought - ok - they are a few months old but a £100 or so cheaper then buying new. Then I saw some for sale for about £150 - thought, ok, they are a few years old but they work for my needs. So with all the choice I have no idea what to buy. Something new, something newish or something old? I don't want to waste money but I also don't want to buy something that won't work. I'm tempted by a 2nd hand jobbie that is a few months old for about £250 ish (or even lower).