For use with Model B Indoor Rowers...
For use with Model B Indoor Rowers only. This is the 2" x 1-5/8" x 5/8" plastic travelling pulley assembly with gear used to connect the shock cord to the chain. The chain and shock cord come together at the traveling pulley, and the traveling pulley moves back and forth inside the rower monorail on every stroke. One per machine. See more info.
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