Our New NEVER-SLIP Chain Tension-ing System: A steel reinforced rear dropout with a built in chain tension-er will make sure your wheel stays aligned and your chain stays taut, even for the most aggressive fixed gear riders. * New Aero Track Frame: Made of 6061 aluminum alloy our new frame may closer resemble your high end road bike than the standard tube design of most fixed gears. With it"s compact geometry you are sure to stay comfortable whether you are riding to the store or 2 towns over. * VELO Leather Studded Seat: Our friends at Velo have made a wonderful new seat that has the perfect balance of sporty and comfortable with styling that is just what you would expect from Loki Cycles. * Tough KENDA 700 X 28C Tires: We know and love Kenda for their rugged Mountain bike tires, but that quality isn"t just for the mountain. Kenda"s sturdy tire builds also work great for road/commuter applications. We know you"ll be impressed with this tough tire. * Durable 45mm Deep V rims: Triple thick alloy walls perfect for potholes and anything else an urban environment can throw at them