GNARLY Tubeless Tyre Inserts - Rim Protection for Gravel & MTB

Tubeless tyres are designed to run lower pressures for better grip and control—but lower pressures also increase the risk of rim damage and tyre burping. GNARLY Tubeless Tyre Inserts provide the protection and support your wheels need when the riding gets rough.

More than just rim protection, GNARLY inserts enhance the performance of your tubeless system, improving suspension feel, traction, and tyre stability. The result is a smoother ride, better handling, and more confidence to ride harder and faster.

We call this The GNARLY Effect.

Why Ride GNARLY Tyre Inserts?

Why Ride GNARLY Tyre Inserts?

Dollar for dollar, GNARLY inserts are designed to be one of the lightest, most effective, and easiest tyre inserts to install.

Key benefits include:

  • More protection from impacts
  • Prevents tyre burping
  • Improves suspension feel
  • Provides better tyre support at lower pressures
  • Improves handling and control
  • Super lightweight design
  • Does not absorb sealant
  • Compatible with all wheel sizes
  • Aussie engineered

Want to learn more about how tyre inserts improve ride performance and rim protection? Check out our guide to tyre inserts here.

Experience the GNARLY Effect

Experience the GNARLY Effect

GNARLY Rim Protectors will change the way your bike rides and feels. By working together with your tyres and suspension system, they improve the three critical elements that affect ride performance:

  • Suspension
  • Rotational mass
  • Traction

The result is better control, improved handling, and a smoother ride when the trails get rough.

If it's GNARLY, it Works.

Tubeless Rim Protection

Tubeless Rim Protection

Running tubeless allows riders to use lower tyre pressures for improved grip and comfort. However, lower pressures also expose rims to impacts from rocks, roots, and sharp edges on the trail.

GNARLY inserts act as a protective barrier between your rim and tyre, helping prevent:

  • Rim damage from hard impacts
  • Tyre burping under aggressive riding
  • Loss of tyre support at lower pressures

With GNARLY protection installed, you can focus on the trail—not worrying about damaging your wheels.

Improved Suspension Feel

Improved Suspension Feel

GNARLY inserts work together with your bike's suspension to deliver a smoother, more controlled ride.

By reducing trail chatter and vibration, the system allows your suspension and tyres to work more effectively, giving you better control across rough terrain.

Less vibration means:

  • Better traction
  • Improved control
  • More confidence when riding technical trails
More Traction and Tyre Stability

More Traction and Tyre Stability

Lower tyre pressures improve traction, but dropping pressure too far can cause unwanted tyre squirm.

GNARLY inserts provide additional sidewall support, helping stabilise the tyre when running lower pressures. This improves grip while maintaining predictable handling and control.

The result is better cornering stability and more confidence when pushing harder on rough terrain.

Lightweight Performance

Lightweight Performance

GNARLY inserts are engineered to deliver protection without adding unnecessary weight.

A lighter wheel accelerates faster, climbs easier, and responds quicker to rider input.

Typical weights (based on 29" wheels):

  • Gnarly Grey – 84g
  • Gnarly Blue – 92g
  • Gnarly Black – 116g

For smaller wheel sizes such as 27.5", inserts will be even lighter.

GNARLY High Flow Tubeless Valve Included

GNARLY High Flow Tubeless Valve Included

During testing we found that some inserts can occasionally sit against the air port in standard tubeless valves, making inflation and deflation difficult.

We also discovered that some modern race sealants can clog smaller valve ports.

To solve this problem we designed the GNARLY High Flow Tubeless Valve, included with every insert.

These valves improve airflow, simplify installation, and ensure your tubeless system works reliably with inserts installed.

Super Easy DIY Installation

Super Easy DIY Installation

GNARLY inserts are designed to be simple to install.

If you can fit a tubeless tyre, installing a GNARLY insert will be easy. All you need is:

  • A sharp knife
  • Tubeless sealant
  • Tyre levers (optional)

It's a one-beer job, so you’ll be back out riding in no time.

If Ronnie and Johnny can do it, you can too.

Size Options

Size Options

GNARLY Rim Protectors are available in three sizes based on tyre width.

ModelTyre Width

Gnarly Grey: 2.0 – 2.2 inch tyres / 45–50mm gravel tyres

Gnarly Blue: 2.3 – 2.5 inch tyres

Gnarly Black: 2.6 – 3.0 inch tyres

The inserts can be trimmed to fit 29", 27.5", and smaller wheel sizes, making them compatible with virtually any tubeless gravel or mountain bike setup.