What it is
A replaceable derailleur hanger—a small but critical part that connects your rear derailleur to your bike frame.
 It’s designed to bend or break first in a crash to protect your frame and drivetrain.
⚙️ Key features
-
CNC machined 6061 aluminum
→ Strong, lightweight, and precise for accurate shifting
-
Black anodized finish
→ Adds corrosion resistance and durability
-
Single bolt mounting (M8 chainring bolt)
→ Simple attachment (note: bolt not included)
???? Compatibility
This hanger replaces:
- Giant Part #RE78E
- Kona Hanger Type I
 That means it only fits specific frames—hanger compatibility is very exact.
 Important before buying
- You must match your current hanger exactly
- Even similar-looking hangers are often not interchangeable
- Check:
- Your bike model & year
- Existing hanger shape
- Manufacturer part number
 Why it matters
- A bent hanger causes:
- Poor shifting
- Chain skipping
- Potential drivetrain damage
- Replacing it is:
- Cheap
- Easy
- Much better than damaging your frame
 Who should get this
- Riders with Giant or Kona bikes using the listed hanger types
- Anyone needing a replacement after a crash or bend
 Pro tip
It’s always smart to carry a spare derailleur hanger—they’re small, inexpensive, and can save a ride or trip.
Bottom line
A precision replacement part that’s essential for proper shifting—but only if it matches your exact bike model.
