Alloy Front Derailleur Clamp FD Adapter Braze on 38mm to 39mm For Brompton 3SIXTY Pikes JAVA FIT Folding Bike 2 Speed - AliExpress
Derailer Clamp - for braze-on fronts – Rivendell Bicycle Works
Derailer Clamp - for braze-on fronts – Rivendell Bicycle Works
SRAM Wide Spacing Braze-on Adapter | Jenson USA
CL-FD Front Derailleur Adapter Braze-On to Clamp 28.6mm | eBay
FOURIERS Alloy Road Front Derailleur Clamp Adapter 31.8mm 34.9mm FD Clamp Braze on Direct Mount for XO X9 X7 Road Bike Bike - AliExpress
Racer Medium – Paul Component Engineering
Problem Solvers Braze-On Front Derailleur Adapter - Peak Bicycle Pro Shop
Compatibility [05] Front derailleurs | BikeGremlin
SRAM and Shimano front-derailleur types and mounts explained - BikeRadar
Fit Link _ Braze-On Adapter – WickWerks
Venzo Road or Mountain Bike Bicycle Adjustable Braze On Front Derailleur Adapter Clamp 28.6mm, 31.8mm or 34.9mm - Compatible with Shimano Sram Black 31.8mm Ver.1
Braze on clamp help : r/bikewrench
Shimano Dura-Ace R9150 Di2 Front Derailleur Braze-on Adaptor - Cascade Bikes | Tigard, OR
Interloc Racing Design Front Derailleur Clamp (Silver) (For Braze-On Derailleur) (28.6mm) - Performance Bicycle
Derailer Clamp - for braze-on fronts – Rivendell Bicycle Works