Buy your Diamant bike online
Online bike-buying is easy
Now you can conveniently buy your Diamant bicycle or e-bike from trekbikes.com right from home. We want you to make the right decision. Let us briefly explain the process and show you all the tools you can use.
First, check the stock of your local shop—your dream bike might already be available there! And if not, your online purchase still allows you to support your local Diamant dealer. They remain your point of contact for all service and warranty inquiries. Plus, they’ll be happy to help you set up your dream bike and customize it with a fitting or accessories.
Need real human support online? You can reach our Customer Care team from Monday to Friday at 01908 360140.
Want to ride today
Maybe your local store has your Diamant on stock already. Pick from available inventory and buy even faster.
Personalized service
We are there for you if you have questions or need advice. Call us and we’ll help you whatever you need.
It doesn’t fit? Bring it back!
Sometimes it just doesn’t fit. Within 30 days, you can return your bike.
More than 40 years warranty
All Diamant bikes have a lifelong warranty on frame and rigid forks. Don’t worry. Just ride.
8 steps to buy your Diamant online
Step 1: Pick your bike
Diamant sells city and trekking® bikes, with or without a motor. Choosing the perfect model for you is a personal decision. Explore our collection of bikes and use our intuitive filters to find your dream bike. If you want to learn more about our bikes, our platform info pages might be interesting for you. Here, we introduce each platform in detail.
Step 2: Find your size
Everyone deserves a bike that fits well and feels great—regardless of body type, riding style, or experience. That’s why we design our bikes to be easily adjustable for a personalized fit.
On each bike page, you’ll find a size recommendation chart to help you choose the correct size based on your body measurements. All you need is your height and your inseam length (measured barefoot from the floor to your crotch). Your gender does not matter.
If you’re between two sizes and unsure which to choose, we recommend taking a test ride or getting advice from your dealer or directly from us. Call 01908 360140 (Mo-Fr, 09:30 – 12:30 and 13:30 – 16:00 (GMT).
Step 3: Switch over to trekbikes.com with just one click
Once you’ve made your decision, click the “Buy” button. This will take you directly to the correct page on trekbikes.com, the online shop of our mother brand. There, you can add the bike in your chosen size and color to your shopping cart.
Step 4: Pick your delivery option
Pick up in store
If your bike is already available at your dealer, you can pick it up today during opening hours. If not, we’ll make sure to deliver it to your chosen store as quickly as possible. There, you’ll receive full service, including fitting and accessory purchases on-site.
Ship to home
A bike box is quite large, but if that’s not an issue for you or your staircase, why not have your bike delivered directly to your home? All the necessary tools and step-by-step instructions are, of course, included.
Premium home delivery
If your dealer offers this service, they will take care of the final adjustments and deliver the bike fully assembled to your doorstep. All you have to do is hop on and ride.
Step 5: Choose your accessories
Whether it’s a new helmet, a sturdy lock, new bags, or a bottle holder—trekbikes.com offers plenty of options to take your riding experience to the next level. Ride safer, ride more comfortably, or ride smarter—simply add your desired accessories to your cart when making your purchase. Almost everything is possible, as we designed our bikes to be compatible with the most common and best accessory products.
Step 6: Register your bike
You can easily register your bike directly on our website. We offer this service for your safety. We store your information along with your serial number, so we can inform you about important product updates. If the police inquire about a registered owner, we can notify you if your stolen bike is found. When you register your bike, we’ll invite you to leave us a review after you submitted you registration. We’d be thankful for that one.
Step 7: Build your bike
We pack our bikes in a way that you only need to do minimal assembly at home. No advanced DIY skills are required. All the necessary tools are included, and you can even use the box as a work surface. How exactly does it work? You find an online version of our quick assembly guide on our page for all manuals. If you are not feeling confident enough, we recommend premium delivery at home or in-store pickup. Let a dealer do the assembly for you.
No match?
You bought your Diamant bike online, but it’s not really what you wanted or it doesn’t quite fit you? Learn more about how you can return your bike in our return and exchange policies.