For the use of the Rohloff SPEEDHUB 500/14 on small wheeled bicycles (eg 20", folding bikes, juvenile- and recumbent bicycles) al 13 or 14 tooth sprocket is needed.

These sprockets demand a 57/58mm chain line instead of 54/55mm. The splined sprockets are reversible while the threaded 13 tooth sprocket is not reversible. 

When using the Rohloff chain tensioner or Rohloff SPEEDHUB Chain Tensioner DH Shorty on frames with dropouts thinner than 7mm, the longer chain tensioner mounting bolt must be used.

The Rohloff SPEEDHUB 500/14 has been developed for racing which means that it can handle the heavy loads encountered during competition. Maximum torque loads in extreme conditions can be as high as 250Nm on the crank (= 150kg on the pedal). This will not damage the gear box because the high chainwheel/sprocket ratio transforms the low number of crank revolutions into a higher number of revolutions at the cog.  

The higher the chainring/sprocket ratio, the lower the input torque to the gear-unit. It is imperative therefore that the chainring/sprocket factor does not drop below 1.9 (e.g. 34:17=2.0). The smallest permissible sprocket ratios for a rider weighing less than 100kg are: 40:21, 32:17, 30:16, 28:15 and 26:13. 

These are the equivalent to a 20:40 combination on a conventional drivetrain. There is no limit whatsoever for higher ratios which means that you can mount bigger chainrings than shown on the table for extreme downhill racing.  

If the SPEEDHUB is mounted on a tandem bicycle or if the rider weighs over 100kg, a chainring/sprocket factor of 2.5 (e.g. 42:17=2.5) must be upheld. This equates to sprocket ratios of: 53:21, 42:17, 40:16, 38:15 and 34:13.