Is there anything more annoying than a bike that squeaks every time you stand up on the pedals? Noise from the drivetrain can drive any cyclist crazy – and in many cases, the culprit is a worn or poorly protected bottom bracket.
Whether you ride road, gravel or MTB, the bottom bracket plays a central role in your riding experience. In this post, we take a closer look at what a bottom bracket actually does, why common problems occur, and why a bottom bracket with ceramic bearings from Danish brand Vertex is the ultimate upgrade for your bike – without having to pay over the odds for well-known brands.
What is a bottom bracket, and why is it so important to your riding experience?
The bottom bracket sits hidden in the centre of the bike frame, where your crank arms are attached. On paper, its main job is to let the crankset rotate completely freely and smoothly as you pedal.
But in reality, the bottom bracket is subjected to extremely high loads:
High pressure: Every time you pedal, a lot of force is transferred through the bearings
Dirt and moisture: It sits low on the bike and is constantly bombarded by water, mud, grit and dirt from the road
When standard steel bearings wear out or are exposed to moisture, they start to rust and lose their smoothness. This creates friction, costs you valuable watts – and inevitably leads to annoying noises.
Common problems: When your bottom bracket squeaks, creaks and groans
Have you ever gone for a ride on your bike, only to be met with a deep, rhythmic squeaking, creaking or groaning every time you pedal hard?
Bike noises are notoriously difficult to locate, but in 9 out of 10 cases they come from the bottom bracket or the areas around it. The typical causes are:
- Worn bearings: The tolerances in inexpensive steel bearings increase over time, creating play and vibration
- Water and dirt ingress: Inadequate sealing allows moisture to get in and wash the original grease out of the bearing, resulting in metal-on-metal wear = the bearings quickly fail
- Frame stress: PressFit systems in particular can loosen over time, causing the bearings to sit slightly crooked and produce a howling or squeaking noise under load
By upgrading to a robust, precision-engineered, top-quality bottom bracket, you can reduce these nuisances to an absolute minimum – or eliminate them entirely.
Why choose a bottom bracket with ceramic bearings?
If you want to get the most out of your training hours, a ceramic bottom bracket (with hybrid silicon nitride bearings) is the best upgrade you can give your bike. The benefits are tangible:
Significantly lower friction: Ceramic balls are considerably harder and smoother than steel. This means the bearing rolls more easily, saving you watts and giving you a more effortless pedal stroke
Longer life and rust-free durability: Ceramic cannot rust, and the material does not deform under heavy pressure in the same way as steel
Silky-smooth rotation: Extremely tight manufacturing tolerances ensure completely even rotation without microscopic vibrations
Resistant to heat and dirt: Ceramic expands minimally when heated, preventing the bearing from binding during intense sprints or tough climbs
Vertex vs. the expensive brands: Premium quality at a fraction of the price
When searching for high-end bottom brackets, there are several options to choose from. There is no doubt that there are some fantastic products on the market – but the price tag is often just as impressive, with a significant portion of the cost going towards the brand name itself.
At DKBIKE, we created Vertex to change that – just as we do with our DKBIKE carbon wheels.
Vertex is a new, uncompromising brand that delivers German-inspired quality and hybrid ceramic bearings to match the most expensive brands on the market – but at a fraction of the price. We have optimised every single detail:
Maintenance kit included: Every Vertex bottom bracket comes with a small, practical grease injector containing special grease. This makes it super easy to service the bearings yourself at home and significantly extend their lifespan
3-year warranty: We trust in our quality, which is why we offer a full 3-year warranty on our bottom brackets. It gives you complete peace of mind that you’re getting a durable product
We have bottom brackets for the most common bikes
Whether you ride a classic road bike with a threaded bottom bracket or a modern carbon gravel bike with PressFit, Vertex has a solution for you. We cover the three most common standards on the market:
| Bike frame / Standard | Crankset compatibility | Vertex model |
| Traditional threaded (BSA) | Shimano (24 mm axle) / SRAM DUB | BSA-24.24R / BSA-DUB-R |
| PressFit (BB86) | Shimano (24 mm axle) / SRAM DUB | BB86-24.24R / BB86-DUB-R |
| Modern threaded (T47) | Shimano (24 mm axle) / SRAM DUB | T47-IN-24.24R / T47-IN-DUB |
How to find the right bottom bracket for your bike:
- Check the crankset: Look at the crank arms to see whether they say Shimano or SRAM DUB.
- Check the frame: Can you see threads on the outside where the bottom bracket sits (BSA/T47), or is it smooth where it enters the frame, with no threads (PressFit / BB86)?
- Not sure? Don’t hesitate to get in touch with us at DKBIKE – send us a couple of photos, and we’ll help you find the right one.
Ready for an upgrade?
Tired of squeaking noises, resistance in the pedals and overpriced spare parts?
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