Description
RockShox Boxxer 15mm Adapter (2019–Current)
The RockShox Boxxer 15mm Adapter lets you ride your existing 15×110 Boost wheel in a RockShox Boxxer 2019–Current fork.
Already upgraded to a RockShox Boxxer (2019–Current) or planning to do so, but don’t want to spend hundreds of dollars on a second front wheel?
You’re not alone.
The latest Boxxer uses a 20mm Boost axle, making your trusted 15×110 Boost wheel incompatible. Instead of buying another wheel, rebuilding your hub or carrying multiple front wheels to every bike park, Freakynuts gives you a much smarter solution.
Our precision-engineered RockShox Boxxer 15mm Adapter allows you to keep riding the wheel you already own.
Designed, engineered and CNC-machined in Germany from aerospace-grade 7075-T6 aluminum, every adapter is manufactured using extremely tight tolerances to ensure perfect alignment, smooth installation and long-term reliability.
Designed by riders.
Built for riders.
Tested where it actually matters.
★ Why Thousands of Riders Choose Freakynuts
✔ Keep riding your existing 15×110 Boost wheel
✔ No expensive second wheel
✔ No hub conversion
✔ Precision CNC-machined in Germany
✔ Aerospace-grade 7075-T6 aluminum
✔ World Cup tested
✔ Fast shipping from Colorado, USA
▶ Watch Installation (50 Seconds)
Why Choose The Freakynuts Boxxer Adapter?
Keep The Wheel You Already Trust
Your wheels already work perfectly.
Why replace them?
The Freakynuts adapter 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.
Engineered Specifically For The RockShox Boxxer
This isn’t a universal spacer.
Every Freakynuts adapter is purpose-built for the RockShox Boxxer (2019–Current), delivering an incredibly precise fit and reliable performance under the toughest riding conditions.
German CNC Precision
Every adapter is CNC-machined in Germany from premium 7075-T6 aircraft-grade aluminum.
We manufacture using extremely tight tolerances because precision matters.
The result is a perfect fit, easy installation and exceptional durability.
Real World Tested
We don’t believe in laboratory-only testing.
Every Freakynuts prototype is ridden hard on real trails, bike parks and World Cup downhill tracks including Leogang.
Thousands of hours of aggressive riding.
Zero structural failures.
Fast Installation
No complicated modifications.
No special tools.
Simply install the adapter, fit your wheel, install your axle and you’re ready to ride.
Most riders finish the installation in just a few minutes.
Which Kit Is Right For You?
Every rider has different needs, so Freakynuts offers three versions.
🟢 Basic Kit
Already own a compatible 15mm thru axle, such as a RockShox Maxle Stealth?
The Basic Kit allows you to reuse your existing axle while enjoying the same precision engineering 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 (Current Product)
The Pro Kit includes everything from the Basic Kit plus our famous solid Freakynuts HellPin axle.
Machined from solid 7075-T6 aircraft-grade aluminum, the HellPin provides outstanding stiffness and durability for aggressive Trail, Enduro, Freeride and Downhill riding.
Our most popular choice.
👑 Premium Kit
The Premium Kit is the latest evolution of Freakynuts engineering.
Instead of a traditional three-piece construction, it features our exclusive two-piece design, resulting in fewer components, faster installation and an even cleaner setup.
Available in:
• Premium Black Anodized
• Premium Raw Anodized
If you simply want the very best Freakynuts has to offer, choose the Premium Kit.
Key Features
✔ Fits RockShox Boxxer (2019–Current)
✔ Converts 20mm Boost to 15×110 Boost
✔ Compatible with virtually every 15×110 Boost wheel
✔ CNC-machined in Germany
✔ Aerospace-grade 7075-T6 aluminum
✔ Real World & World Cup 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
• Race Face
• Reserve
• Crankbrothers
• Bontrager
• Spank
…and many more.
Why Freakynuts?
Freakynuts was born from a simple frustration.
As riders who regularly switch between Enduro and Downhill bikes, we were tired of buying extra front wheels, rebuilding hubs and carrying duplicate wheelsets to every riding trip.
So we engineered a better solution.
Every Freakynuts adapter is designed, manufactured and tested with one goal:
Keep riders on the wheels they already trust.
No gimmicks.
No compromises.
Just smart engineering that works.
Ready To Ride?
Stop spending money on extra wheels.
Install your Freakynuts RockShox Boxxer Adapter in minutes and keep riding the 15×110 Boost wheel you already own.
Ride more. Spend less. Ride Freakynuts.











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