Braze-on Adaptor Clamps

Front derailleur braze-on adaptor clamps for frames without front derailleur braze-ons. 20mm of vertical adjustability. Problem Solvers Braze-on Adaptor Clamp 28.6mm Slotted Silver  Front Derailleur Clamp: 28.6 (1-1/8") , Braze-on Weight: 38 Problem Solvers Braze-on Adaptor Clamp 28.6mm Slotted Black  Front Derailleur Clamp: 28.6 (1-1/8") , Braze-on Problem Solvers Braze-on Adaptor Clamp 31.8mm Slotted Silver  Front Derailleur Clamp: 31.8 (1-1/4") , Braze-on Problem Solvers Braze-on Adaptor Clamp 31.8mm Slotted Black  Front Derailleur Clamp: 31.8 (1-1/4") , Braze-on Problem Solvers Braze-on Adaptor Clamp 34.9mm Slotted Silver  Front Derailleur Clamp: 34.9 (1-3/8") , Braze-on Problem Solvers Braze-on Adaptor Clamp 34.9mm Slotted Black  Front Derailleur Clamp: 34.9 (1-3/8") , Braze-on