Since 1993 the S & S Machine Bicycle Torque coupling has revolutionized the bicycle industry and forever changed the image of travel bikes. No longer is it necessary to compromise cycling performance in order to build packability. The S & S coupling allows a truly high performance bicycle to be disassembled and packed for travel quickly and easily in airline-checkable luggage. Available for singles and tandems, the couplers add only 8 oz. to a single and 2 pounds to a tandem bicycle. New Horizons offers S & S couplers on models from Serotta, Santana, H & H Racing group and Co-Motion.