Rear Derailleur Hanger 633 Aluminum Alloy With M4x8mm Mounting Bolts For Quick Install And Tough Drivetrain Protection Compatible With Bianchi Magma Conway MC ML MS Rainbow Alp Elite Rock Machine Blackout Catherine Crossride Manhattan Storm Torrent

633 Aluminum Derailleur Hanger with M4x8mm bolts
✔️ Includes M4 x 8mm bolts for quick install and solid alignment

The derailleur hanger is a replaceable dropout piece designed to protect your bike’s frame and drivetrain from impact. This high-strength aluminum alloy part acts as a sacrificial link, absorbing bumps and mis-catches to prevent frame damage. It is a direct replacement for Derailleur Hanger #633/Dropout 628 and fits a wide range of MTB, road, and e-bike frames. Color: Silver and it comes with mounting bolts.

✅ Material: high-strength aluminum alloy for durability and precise alignment
✅ Includes mounting bolts: M4 x 8mm flat head screws
✅ Direct replacement for Derailleur Hanger #633 / Dropout 628
✅ Color: Silver
✅ Wide compatibility: MTB, road, and e-bike frames across many brands

💡 What is a derailleur hanger used for?

A derailleur hanger is a removable dropout that protects the frame and drivetrain during impacts. - protects frame and drivetrain from impact - acts as a sacrificial part to save the frame - keeps derailleur alignment for smooth shifting