Amazon.com: Black Bike Rear Gear Mech Derailleur Hanger with Bolt Fitting Metal Tailhook Dropout Adapter for MTB Bicycle Replacement Parts : Everything Else
S10 derailleur hanger adapter B-link Goat link Claw for Shimano Shadow direct rear derailleur - Elanus Parts
Folding Bike Front Derailleur Adapter | Litepro Front Derailleur - Jp8 Faa083 Folding - Aliexpress
Origin8 Direct Mount Front Derailleur Clamp Adapter 34.9 - Blue Sky Cycling
Amazon.com : Derailleur Hanger, Rear Gear Mech Bike Hooks, Universal Derailleur Hanger, Bike Gear Aluminium Alloy Mountain Bike Hook Drop Out Adapter Fits for Bikes Rear Gear Hanger Hanger Tail(Number 1) :
Index Derailleur Hanger Plate with Nut and Bolt (Shimano Compatible) – Spirited Cyclist
Campagnolo Record Front Derailleur Clamp Adapter (Black) (32mm) - Performance Bicycle
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
Alloy Front Derailleur Adapter Clamp: Silver | Omni Racer