You’re not alone – and we’ve got you covered
Can’t connect your bike trailer to your Trek bike? You’re definitely not the only one. Many Trek models come with thru axles or dropout systems that aren’t compatible with standard trailer hitches.
But the good news? It’s easier than you think – and you don’t need any special tools to fix it. Just the right adapter.
We’re experts in bikes and trailers – and we’ll help you connect your Trek to any trailer brand, including:
- Thule
- Hamax
- Burley
- Nordic Cab
- Croozer
- Qeridoo
- InnoPet
- Beemo
- Trixie
- VidaXL
- And many more
Do I need an adapter for my Trek?
Yes – in most cases.
Modern Trek bikes often come with:
- 12 mm thru axle (not compatible with most trailer hitches)
- Or Trek’s own Thru Skew system
- Older models might use a 5 mm quick release
If your trailer doesn’t fit, you likely need an adapter.
Trek models that often require an adapter
- Trek Marlin (MTB)
- Trek FX & Dual Sport (hybrid)
- Trek Domane (road)
- Trek Powerfly / Rail (e-bikes)
- Trek Checkpoint (gravel)
⚠️ Trek axle specs vary by model and year. Never guess – let us help you find the right one if you are unsure.
Need help? We make it easy
It doesn’t matter which bike trailer you have – we’re happy to help!
Whether it’s Thule, Hamax, Burley, Nordic Cab, or any other brand, we’ll help you find the right adapter for your bike.
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!
You can also reach us directly:
📞 Phone: +47 4000 6191 (Monday–Friday, 10:00–14:00 CET)
📧 Email: info@ncsolutions.com
💬 Chat: Click the chat icon in the bottom-right corner of our website – we’ll be right there to help!
👉 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
Technical Overview – What kind of axle does Trek use?
Trek bikes use a variety of axle types:
- 12 mm rear thru axle (thread pitch: M12x1.0, M12x1.5, or M12x1.75)
- 5 mm quick release (on older/hybrid models)
- Trek Thru Skew – unique to some Trek bikes
- Looks like QR
- Functions like a thru axle
- Requires a specific adapter (we have it!)
We stock adapters for every axle system used by Trek.
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.
Frequently Asked Questions (FAQ)
Why doesn’t my trailer fit my Trek bike?
Because Trek uses thru axles or Thru Skew systems, which don’t work with standard hitches.
Which Trek bikes need adapters?
Most modern Trek models like Marlin, Powerfly, FX, Domane, and Checkpoint.
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! You just need a hex key and a wrench. No special tools.
Do your adapters work with all trailer brands?
Yes! Thule, Hamax, Burley, Nordic Cab, Croozer, Qeridoo and all other 2-wheeled bike trailers that is fixed on the frame hub part of the bikes.
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.