Hello everyone, first post here. I'm looking for advice on a dedicated single speed purchase. I've been riding an aluminum convert and am ready to move to a true single speed road bike. I am not wanting to go fixed and plan to use a freewheel solely. I am going back and forth between the Gravity Attack Track, and one one of the Windsor bikes (TimeLine, Hour, ClockWork). I am on an aluminum frame now (converted Windsor Dover) so I know what to expect from this frame material. The Windsors mentioned above are all 4130 frames, and I trust the name well enough. The Gravity is a name I am not familiar with. Has Gravity bikes been getting a good reputation? The bike mentioned also comes with a Kinesis carbon fork so that too is a bit of a bouns to me as I live in a moderately hilly area and would think the lighter weight (aluminum/carbon) would benefit over all steel... I'd appreciate any and all comments you all can give. Thanks.