Problem Solvers Chain Tensioner & Derailleur Hanger - RH-RD10
Problem Solvers Chain Tensioner & Derailleur Hanger - RH-RD10, Problem Solvers Chain Tensioner with Hanger Features: 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