The original 13T screw on and still the best. EZ off design when used with the Odyssey removal tool.
This freewheel uses the smaller of the two freewheel threads. You can't use it if your wheel isn't designed for it. 13T, 14T and 15T freewheels use a smaller thread than the older standard, which 16T or greater still use. Measuring the inside diameter of the freewheel threads, the smaller is 29mm, the larger is 34mm. Shipping Weight: 200g.