Description
Fox 40 15mm Adapter – Basic Kit
Ride Your Existing 15×110 Boost Wheel in Your Fox 40
Already riding a Fox 40, or planning to upgrade, but don’t want to spend hundreds of dollars on a second front wheel?
You’re not alone.
The latest Fox 40 uses a 20mm axle standard, making your trusted 15×110 Boost wheel incompatible.
Instead of buying another wheel, rebuilding your hub or carrying multiple wheelsets to every bike park, the Freakynuts Fox 40 Basic Kit lets you continue riding the wheel you already know and trust.
Designed, engineered and precision CNC-machined in Germany from aerospace-grade 7075-T6 aluminum, the Basic Kit delivers the same precision, perfect fit and reliability as every Freakynuts adapter system while allowing you to reuse your existing compatible 15mm thru axle.
Designed by riders.
Made in Germany.
Tested where it actually matters.
★ Why Thousands of Riders Choose Freakynuts
✔ Ride your existing 15×110 Boost wheel
✔ No expensive second wheel
✔ No hub conversion
✔ Reuse your existing compatible 15mm thru axle
✔ Precision CNC-machined in Germany
✔ Aerospace-grade 7075-T6 aluminum
✔ World Cup & Bike Park tested
✔ Ships fast from Colorado, USA
▶ Watch Installation (Less Than One Minute)
Why Choose the Freakynuts Fox 40 Basic Kit?
Keep the Wheel You Already Trust
Your wheel already performs exactly the way you like it.
Why replace it?
The Freakynuts Basic Kit lets you continue riding your existing 15×110 Boost wheel without rebuilding your hub or investing in another expensive downhill wheel.
Less money.
Less hassle.
More riding.
Designed Specifically for the Fox 40
Unlike universal spacers, every Freakynuts adapter is engineered exclusively for the Fox 40.
The result is exceptional precision, perfect alignment and complete confidence under the toughest riding conditions.
Reuse Your Existing 15mm Thru Axle
Already own a compatible 15mm thru axle, such as a RockShox Maxle Stealth?
Great.
The Basic Kit is designed exactly for riders like you.
Simply install the precision-machined adapters and reuse your existing axle.
No need to buy another one.
German CNC Precision
Every adapter is precision CNC-machined in Germany using premium 7075-T6 aircraft-grade aluminum.
Every thread.
Every surface.
Every tolerance.
Manufactured to deliver a perfect fit every single time.
Real World Tested
We don’t believe laboratory testing tells the whole story.
Every Freakynuts prototype is tested on demanding trails, bike parks and World Cup downhill tracks—including the legendary Leogang World Cup course.
Thousands of hours of aggressive riding.
Zero structural failures.
Fast Installation
No hub conversion.
No expensive wheel rebuild.
No complicated tools.
Install the threaded adapters.
Insert your wheel.
Install your existing 15mm thru axle.
Tighten.
Ride.
Installation takes only a few minutes.
Which Kit Is Right For You?
Freakynuts offers three adapter systems, allowing every rider to choose the solution that best fits their riding style and budget.
🟢 Basic Kit (Current Choice)
Perfect if you already own a compatible 15mm thru axle.
Reuse your existing axle and enjoy the same German precision and perfect fit as every Freakynuts adapter.
Included
✔ Precision CNC-machined adapter system
✔ Premium protective packaging
✔ Official Freakynuts sticker
✔ Premium velvet storage pouch
Axle not included.
🔵 Pro Kit
The Pro Kit includes everything from the Basic Kit, plus our legendary solid Freakynuts HellPin axle.
Ideal for aggressive Trail, Enduro, Freeride and Downhill riding where maximum stiffness and durability are required.
Available in:
✔ Black Anodized
✔ Gold Anodized
✔ Raw Anodized
👑 Premium Kit
The Premium Kit is our latest generation.
It combines the solid HellPin axle with our exclusive two-piece adapter system, reducing the number of components while making installation even faster, cleaner and easier.
This is the ultimate Freakynuts solution for riders who simply want the very best.
Available in:
✔ Black Anodized
✔ Gold Anodized
✔ Raw Anodized
Key Features
✔ Fits modern Fox 40 forks
✔ Converts 20mm Boost to 15×110 Boost
✔ Reuses your existing compatible 15mm thru axle
✔ CNC-machined in Germany
✔ Aerospace-grade 7075-T6 aluminum
✔ World Cup & Bike Park tested
✔ Premium protective packaging
✔ Official Freakynuts sticker included
✔ Premium velvet storage pouch included
✔ Ships fast from Colorado, USA
Compatibility
Compatible with virtually every major 15×110 Boost front hub including:
• DT Swiss
• Hope
• Industry Nine
• Chris King
• Newmen
• Reserve
• Race Face
• Crankbrothers
• Bontrager
• Spank
…and many more.
Why Freakynuts?
Freakynuts wasn’t created to sell adapters.
It was created to solve one of the biggest frustrations mountain bikers face when upgrading to modern downhill forks.
We wanted to keep riding the wheels we already trusted instead of buying another expensive wheelset.
So we engineered a better solution.
Every Freakynuts adapter is designed, manufactured and tested with one simple mission:
Keep riders on the wheels they already trust.
No gimmicks.
No compromises.
Just precision engineering that works.
Ready To Ride?
Stop buying extra wheels.
Stop rebuilding hubs.
Keep riding the wheel you already trust.
Install your Freakynuts Fox 40 Basic Kit in minutes and experience one of the smartest wheel conversions available today.
Ride more. Spend less. Ride Freakynuts.
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