Our Retro Bicycle Mud Flaps are designed to mount flush against flat fender surfaces.
Curved & Ducktail Fender Compatibility
If your fender has significant curvature at the mounting point (like many ducktail-style fenders), fitment may be compromised. The adhesive and mounting system works best on flat surfaces.
Before You Order
- Measure the flat area at the bottom of your fender where the mud flap would attach
- Check the mounting width — our flaps mount at 3.5" (Beach Cruiser) or narrower at the top
- Assess the curve — if your fender curves outward significantly where the flap attaches, it may not sit flush
Two Size Options
| Size | Top Mounting Width | Best For |
|---|---|---|
| Beach Cruiser | 3.5" wide, tapers to 4.5" at base | Wider cruiser-style fenders |
| Road Bike | Narrower profile | Standard road bike fenders |
Installation Tips
- Clean the fender surface thoroughly before applying
- For best adhesion on smooth plastic fenders, lightly sand/scuff the mounting area
- Some customers prefer using automotive 3M tape, small rivets, or screws for permanent installation
Both front and rear flaps are identical, so you can order multiple fronts if needed for trikes or custom setups.
Jan 15, 2026