Originally Posted by
unikid
Or just switch to an Onyx hub or similar
+1 the Onyx Hub is of the Sprag Clutch design. Its proven clutch technology is Aerospace approved. It's probably the most robust clutch on the market. Used commonly in helicopter rotor drives!
Also, its freewheel/coast parasitic drag is the lowest of any bicycle free-hub available according to a recent test by a team at Duke University.
For those of you with reliability concerns and or Tandem MTB applications, give this serious look.