New
3-Speed Hub-Compatible Freewheel Adapter Kit
Allows a standard BMX 1.37" 24 TPI freewheel to be used in conjuntion with a larger, independent motor-driven sprocket on a Nexus, SRAM or Sturmey-Archer 3-speed hub. Having a "second" freewheel in back eliminates the need for installing a special freewheel-equipped crankset, so that the motor doesn't drive the pedals, when it is on. Four holes are provided in the adapter base that match up to a standard 16T 3-splined Nexus cog (not supplied...). The steel cog is then sandwiched between the freewheel adapter and the motor sprocket/adapter, using the supplied stainless steel button-head screws, nuts and lock washers, along with the supplied black-anodized aluminum spacers/standoffs. This assembly fits on the splined hub and is held in place with the standard circlip, provided with the hub. Then, a standard BMX-type freewheel, which are available with 16-22 teeth, is screwed onto the feeewheel adapter. This adapter is compatible with all popular 3-speed hubs, including Nexus, SRAM and Sturmey-Archer.

Kit includes the adapter, four stainless steel 1/4-20 x .75" buttonhead scews, with lock washers and low-profile stainless steel nuts, and the required washers/spacers. In addition, four linger 1/4-20 x 1" screws and four anodized aluminum standoff spacers are also provided, which allows for various chainline options for the motor-driven sprocket.