function updateHeaderHeight() {
        // Get the height of #brx-header
        const headerHeight = document.querySelector('#brx-header').offsetHeight;
          
        // Store the height in the CSS custom property --header-height
        document.documentElement.style.setProperty('--brxw-header-height', headerHeight + 'px');
    }

    // Execute the function as soon as the document is ready
    document.addEventListener('DOMContentLoaded', function() {
        updateHeaderHeight();  // Initial update of header height when the document is ready

        // Update the header height on window resize and orientation change
        window.addEventListener('resize', updateHeaderHeight);
        window.addEventListener('orientationchange', updateHeaderHeight);
});

5 Million Bikes Will Be Stolen This Year

95% Will Never Be Seen Again.

Here's The Tech To Ensure Your Bike Won't Be One Of Them:

Nunchuk – Folding Lock With Hidden Tracker

The best bike security investment you'll make.

Meet The Nunchuk: The ultimate double-threat for bike thieves. We’ve combined a high-security certified folding lock with our proprietary Bikebac Tracker technology bundled into the frame mounted holder.

Early Bird Pre-Order Special:
1 Nunchuk
Select Version:
#1
CA$127.99CA$159.99
Save 20% Off
Best Deal
2 Nunchuk's
Select Version:
#1
#2
CA$207.99CA$319.98
Save 35% Off
Pre-Order Benefits:
90-Day On Bike Trial

Don’t love your Nunchuk in the first 90 days? Get free return shipping AND a full refund. No questions asked.

FREE Shipping

Nunchuk ships FREE, with all duties pre-paid.

Up To 35% Savings

Get The Best Deal, before prices increase forever.

VIP Supporter Facebook Community

Get Exclusive Access To Our VIP Nunchuk Pre-Order Facebook Group.

First Batch Availability

Get It a Month Earlier than everyone else. Ships October 1st.

Risk Free Pre-Order

Cancel Anytime before we ship.

After Pre-Orders End:
30-Day On Bike Trial
Free Shipping on 2+
Full Retail Price
Late Batch Shipping

Ships November 1st.

Watch it in Action:

Grace R.

Lorem ipsum dolor sit amet, consectetuer adipiscing elit.

Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa.Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa.

John Smith

Account manager

Jay W.

Lorem ipsum dolor sit amet, consectetuer adipiscing elit.

Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa.Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa.

John Smith

Account manager

Bikebac Seen On:

The Bikebac Nunchuk is the ultimate double-threat for bike thieves. 

We’ve combined a high-security, ART 2 & Sold Secure Gold certified folding lock with our proprietary Bikebac Tracker technology bundled into the frame mounted holder.

By integrating the tracker directly into the frame-mounted holder, we’ve created a security system that protects your bike physically and monitors its location digitally. It’s sleek, it’s tough, and it’s always on guard.

The Nunchuk isn't just a lock;
it's a routine.

Pair The Included Bikebac Tracker to Your Phone:

Pop the Bikebac Tracker into the Nunchuk Holder, and Install on Your Bike:

Always Ready To Secure Your Bike:

  • Secure: The heavy-duty steel plates fold out to provide 100cm of reach, easily securing your Bike to any rack.
  • Snap: When you’re done, the Nunchuk folds into a compact “holster” that mounts directly to your bike’s water bottle mount, or with included frame straps.
  • Monitor: The moment you walk away, the integrated Bikebac Tracker in the holder takes over, keeping a digital eye on your bike’s location via your smartphone.

We engineered the Nunchuk Holster
to be the "brain" of your bike’s security.

It starts with bundling our Bikebac Tracker into the holder,
the same tracker that’s already proven to make missing bikes 11X more likely to be recovered.

  • Discreet Protection: The tracker is embedded within the mount itself. To a thief, it just looks like a standard bracket.
  • Seamless Ecosystem: Use your phone’s built in finding app to see your bike’s last known location, all without any subscription costs.
  • Always Armed: Because the tracker is part of the mount, you never forget to “bring it along.” If your bike is there, your tracker is there.

Everything You Need to Level Up Your Bike's Security

In The Box:

  • 1x Nunchuk Folding Lock
  • 2x Keys
  • 1x Nunchuk Holster – Frame Mountable Lock Holder
  • 1x Bikebac Tracker
  • 2x Security Bolts
  • 2x Mounting Straps
Specifications:
  • Length: 1 Meter (Opened)
  • Weight: 1.5KG (Lock & Holder)
  • Security Certifications: ART2 & Sold Secure Gold

  • Required for setup: 

    • Android Find Hub: Android phones with OS 9 and above.

    • Apple Find My: iPhone or iPad (Running iOS 14.5, iPadOS14.5 or newer)

  • Battery Life: Up to 1+ Year
  • Battery: CR2032 (Replaceable)
  • Warranty: 3 Years
  • Operating Signal: Bluetooth 5.2 (Up To 30M (100ft) Range to nearby devices globally to relay the location back to you. (Even if you’re on the other side of the world))

Designed to make it easy to improve your bike’s security

Flexible Security

The heavy-duty steel plates fold out to provide 100cm of reach, easily securing your Bike to any rack.

Seamless Tracking

Use your phone's built in finding app to see your bike’s last known location, all without any subscription costs.

Discreet Protection

The tracker is embedded within the mount itself. To a thief, it just looks like a standard bracket.

Always Armed

Because the tracker is part of the mount, you never forget to "bring it along." If your bike is there, your tracker is there.

I Got My Bike Back Thanks to Bikebac

It was a pretty stressful few days— Just the other night I was broken into and they managed to get one bike before they left. Thanks to this product. We watched it for a few days and then finally moved and so did we and I now have my bike back..

Thanks guys, it saved me $3500

Kerry W.

Verified Buyer
0