Problem Solvers Chain Tensioner with Derailleur Hanger

Problem Solvers Chain Tensioner with Derailleur Hanger. Problem Solvers Chain Tensioner with Hanger

For quick-release hubs use Surly adaptor (CH9996)

Allows for the use of a derailleur on frames without derailleur hangers

For use with rear-facing horizontal dropouts and 10mm axles