
The Rohloff Speedhub Sprocket is for use with the Rohloff Speed Hub. This genuine Rohloff part means that you can perfectly match your sprocket/chainring ratio to your needs. The 15, 16 & 17 tooth sprockets are reversible, & therefore can be used from both drive sides. The 13 Tooth is for use with the Rohloff Speed Hub on small wheeled bicycles (eg 20", folding bikes & recumbants). It uses a different chain line (58mm instead of 54mm) & is not reversible. For sprocket removal, a special Rohloff sprocket tool is needed.