Why doesn’t your 15mm Boost wheel fit your Formula Nero? Most modern enduro and e-MTB wheels use a 15×110 Boost axle system. The Formula Nero downhill fork uses a different front axle interface designed around downhill riding.
The wheel width alone does not determine compatibility. The axle diameter, dropout dimensions and way the wheel is supported all need to match. That is why your 15mm Boost wheel will not simply fit into your Formula Nero.
The Freakynuts® Formula Nero 15mm Adapter creates the required interface.

Use the Wheel You Already Own

A premium front wheel is a major investment. If you already have the rim, hub, rotor, tyre and tubeless setup you want, buying another wheel only because of the axle standard can be unnecessary.
The Freakynuts® system allows you to keep using a compatible 15×110 Boost front wheel with your Formula Nero setup.

CNC Machined in Germany

Every Freakynuts® component is machined from high-strength 7075 aluminium. The material combines excellent strength, stiffness and fatigue resistance with low weight.
More importantly, precision CNC manufacturing gives us control over the dimensions that determine how accurately the wheel sits inside the fork.

Designed as a Complete System

Freakynuts® is not based around a cheap generic sleeve. The adapter system is designed around the relationship between the fork, axle and hub.
Correct positioning matters for steering feel, brake alignment and overall front-end precision. That is why every part is manufactured for a precise mechanical fit.

No Irreversible Changes

Your Formula Nero does not need to be drilled or permanently modified. Your Boost wheel also remains a normal compatible 15×110 wheel.
Remove the adapter system and the wheel can still be used elsewhere.

Basic, Pro and Premium

Basic contains the essential adapter components.
Pro adds the Freakynuts® KingPin solid 7075 thru axle.
Premium is the flagship configuration with a more integrated design and fewer individual components.

Built for Downhill

The Formula Nero is designed for serious gravity riding. Our adapter is built with the same use case in mind.
Downhill tracks, bike parks, freeride and hard riding.
Use your favourite 15×110 Boost wheel with your Formula Nero. Freakynuts®.