Hi I purchased a Geneses Flyer last week . There web site states: "And, because we're nice you'll find options for fixed/freewheel setup straight out of the box." However the fitted rear fixed cog is to thick for the supplied chain (1/8 v's 3/32). When I raised this complaint, I anticipated being told that you would simply swap the sprocket or chain and I would have remained a happy customer. Instead the Genesis agent for Scotland/Northern England has told my local supplier that fixed wheel bikes are illegal to sell and that they don't sell it as a fixed wheel bike but just a bike with a flip flop hub. So if like me you want a fixed wheel commuter bike.....don't buy the Flyer and expect to be able to use it as a Fixie - seemingly the FlipFlop hub and fixed sprocket are just there to add weight. To make matters worse, the supplied mud guards lasted one week of commuting in Edinburgh and now being replaced!!!