Easily convert your bike to a single speed with a chain tensioner. When altering modern bikes, dropouts are vertical so properly tensioning the chain becomes nearly impossible. However, the ideal chain tension is always possible when you own a chain tensioner,
Several models are available in new or like-new condition with minimal wear and tear. Many include a self-aligning floating pulley and are easily mounted to a derailleur hanger, giving the right balance on your bike.