Planet Bike Grunge Rear Fender – Seatpost Mount – 29" MTB – Black
The Planet Bike Grunge Rear Fender is a seatpost-mounted mudguard designed to keep trail spray, mud, and road grime off your back during wet rides. With a wide 85mm profile and long coverage, it helps protect riders whether they’re commuting through rain or riding muddy singletrack.
This rear fender mounts directly to the seatpost and works with a wide range of mountain bikes and hybrid bikes. Its flexible design makes it easy to install and remove while providing dependable protection in sloppy conditions.
Key Functional Details
- Mount type: Seatpost mounted
- Fender type: Rear
- Maximum wheel size: 29"
- Fender width: 85mm
- Maximum tire width: 2.25"
- Length: 460mm
- Weight: 174g
- Color: Black
- Designed to block mud, water spray, and trail debris
- Platform Type: Mountain Bike / Hybrid Bike
Compatibility & Technical Notes
- Compatible with most seatposts
- Works with mountain bikes and hybrid bikes
- Supports wheel sizes up to 29"
- Recommended tire width up to 2.25"
- Does not require frame fender mounts
- Platform Type: MTB and commuter bikes
Service / Ownership Context
Seatpost fenders are a quick solution for riders who want mud protection without installing full-coverage fenders. They’re commonly used on mountain bikes, gravel bikes, and commuters when riding in wet conditions or muddy trails.
Fit & Use Signals
- Good Fit: Your bike uses a standard seatpost.
- Good Fit: Mountain bike or hybrid bikes up to 29".
- Good Fit: Riders commuting or riding trails in wet conditions.
- Not A Fit: Bikes with no exposed seatpost.
- Not A Fit: Tire widths larger than 2.25".
- Not A Fit: Riders needing full front and rear fender coverage.
