34.9mm Bike Front Derailleur Clamp Braze-On Adapter Mech Band Mount Spare Parts | eBay
Origin8 MaxFit Braze-On Front Derailleur Adapter - Trek Store of Bradenton, FL
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Bike Bicycle Front Derailleur Braze-on Clamp Band Adapter 31.8mm | Fruugo FR
Bike Derailleur Clamp, Front Mech Clamp Alloy Braze on Front Mech Derailleur Clamp Adapter Front Mech Black 31.8/34.9mm (34.9mm-Black) : Amazon.co.uk: Sports & Outdoors
Shimano Adapter Clamp For Braze-On Front Derailleurs TotalCycling.com