In Philadelphia, Pennsylvania Kestrel manufactures high quality carbon frames.

Connex bicycle chains are the perfect addition.

 http://www.kestrelbicycles.com/

IF – Independent Fabrication stands for customized bikes characterized by individual design and the application of high quality materials.

The chains are supplied by Connex.

 http://www.ifbikes.com/

Since 1972 Richard Sachs builds Bicycle frames in Chester, Conneticut. The founder designs and manufacturers each of the sophisticated products by himself.

As for the chains, Richard Sachs relies on Connex.

 http://www.richardsachs.com/