The Synergy is an extremely versatile box-section rim.  It is light enough for club riding, but stout enough for touring and cross country mountain biking.  It is available in a wide variety of sizes, and comes in an off-center version to mitigate the spoke tension disparity caused by modern cassette hubs.

The Synergy is available in 26″, 650B, and 700C.

650B Non-Machined Sidewall

700C

26″