TerraCycle offers a Longbikes Slipstream Idler Kit that looks very nicely made. It replaces the rubber idlers seen on most recumbents with coged idlers that have high quality bearings. TerraCycle claims that the better idlers provide improved efficiency and quieter operation. This improvement is not inexpensive, $154 for the kit.
I agree with TerraCycle’s explanation of why [...]
Read the complete post at http://ebent.wordpress.com/2008/03/31/terracycles-longbikes-slipstream-idler-kit/