Need a new freewheel. What do you guys/gals choice? A simple shimano SF-1200 or?? Looking at either these Also i read somewhere that if using a 1/8 chainring and chain i can run either 1/2×1/8 or 1/2×3/32(as pictured) by HabitualAsshole Bicycle Bike Fixed Gear Fixed Gear Bicycle Fixed Gear Bike Single Speed Cycles