Originally Posted by
Jipe
This Sturmey Archer hub is an internal gear hub and as all internal gear hub, it will require some torque blocking system, i.e. something that avoid that the hub axle turns wrt. the frame dropouts (its the special parts that R&M add to the Rohloff).
This is included, see "lock-washer" in the manual. This hub doesn't develop much torque, so that simple solution is plenty. Even my Alfine 11 uses just a lock washer / no-turn washer, and isn't moving in the dropouts.
CEBEP, as you'll see in the manual, this hub assumes your frame has a cable housing stop on the chainstay. It doesn't have an arm for this, like Alfine hubs do. This can be a problem. Bolt-on cable housing stops exist, but for round tubes. Attaching one to the Birdy can be tricky. The pictures of the Pacific Birdy Touring 3x8 doesn't show exactly how they have solved it. They may have developed a custom housing stopper part that sits inside the swingarm, by the hole the cable comes out of.
https://www.pacific-cycles.com/birdy...DY-Touring-3x8