🚲 Bike Trailer Doesn’t Fit? Here’s How to Fix It – For All Bikes and Trailers
Having trouble connecting your bike trailer? Whether you’re riding a mountain bike, e-bike, gravel bike or city bike – and whether your trailer is for kids, dogs or cargo – this guide will help you figure out why your trailer doesn’t fit and exactly what you need to fix it.
This article applies to all major bike and trailer brands, and gives you a simple path to finding the correct hitch or adapter.
Why Doesn’t My Bike Trailer Fit My Bike?
This is one of the most common problems cyclists face – especially when switching to a new bike.
Common reasons your trailer doesn’t attach:
- You have a newer bike with thru axle and the trailer hitch doesn’t fit.
- Your e-bike or mountain bike has a non-standard frame or dropout.
- Your trailer requires a different type of adapter or skewer than what your bike has.
- You’re using an older trailer with a newer bike – or vice versa.
If your trailer doesn’t fit, you likely need an adapter to make it work safely.
💡 Good news: This is a solvable problem. You just need the right adapter.
Need help? We make it easy
You don’t need to figure it out on your own. Just fill out our quick help form – it takes less than 1 minute, and we usually reply the same day or by the next business day.
📬 Tip: If you don’t get a reply, please check your spam or promotions folder – we’re known for being fast!
👉 Want to browse yourself? You can also check out our full selection here:
🔗 See all bike trailer adapters
Shipping, Taxes & Worldwide Delivery
📦 We ship with DHL Express – fast, tracked delivery to your door
🌍 Worldwide shipping available
💰 All prices include local tax and VAT – no hidden fees
🚫 No extra customs charges – what you see is what you pay
About Us – Quality Adapters from a Norwegian Bike Trailer Brand
Nordic Cab is a Norwegian manufacturer of bike trailers and accessories – and we know how important a safe and solid connection is.
Our adapters are:
- CNC-machined
- Made from high-quality aluminum or stainless steel
- Designed for perfect fit and durability



For more specialized bikes, we also partner with trusted brands like Robert Axle Project to offer the best possible solution.
Wherever you ride – we’ll help you connect your trailer safely and securely.
Popular Bike Brands:
Trek, Specialized, Cannondale, Giant, Cube, Scott, Canyon, Rad Power, Haibike, Orbea, Merida, Surly, Focus, Gazelle, Riese & Müller, and more.
Popular Bike Trailer Brands:
Thule, Burley, Nordic Cab, Hamax, Croozer, Qeridoo, North 13.5, Schwinn, Weehoo, Allen Sports – and nearly every trailer with a rear hitch system.
Frequently Asked Questions (FAQ)
Why doesn’t my trailer fit my bike?
Most likely because your bike uses a thru axle, solid axle, or a proprietary system that isn’t compatible with standard trailer hitches.
Which bikes typically need adapters?
Most modern bikes do – especially those with 12 mm thru axles, internal gear hubs, solid axles, or proprietary quick-release systems.
How do I check which axle I have?
Remove the axle and check the size. Or send us a photo – we’ll figure it out for you.
Is it hard to install an adapter?
Not at all! All you need is a hex key and a wrench. No special tools are required.
Do your adapters work with all trailer brands?
Yes! Our adapters are compatible with all major 2-wheeled bike trailers that mount at the frame hub, including Thule, Hamax, Burley, Nordic Cab, Croozer, Qeridoo, and many more.
What if I buy the wrong adapter?
If you’re ordering from outside Norway, we recommend contacting us before you order if you’re unsure. Just send us your bike details – we’ll help you get it right the first time.
(Inside Norway, we offer a free exchange if needed.)
Can I use the same adapter on a different bike?
Only if the axle type is exactly the same. We recommend one adapter per bike.
Is it safe for children or pets in the trailer?
Absolutely. Our adapters are precision-made and tested for strength and safety.