Specialized Bicycle Components
Cannondale
Klein Bicycle Corporation
Scott Sports
Giant Bicycles
Electra Bicycle Company
Schwinn Bicycle Company
SRAM Corporation
Shimano
Canyon Bicycles
Cervélo
GT Bicycles
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American bicycle manufacturing company
trekbikes.com
Trek Bicycle Corporation is a bicycle and cycling product manufacturer and distributor under brand names Trek, Electra Bicycle Company, Bontrager, and Diamant Bikes. Wikipedia