- Components
- ceramicspeed 61903 6903 single bearing
- All ceramicspeed bearings are hand-built in Denmark. Super smooth ceramicspeed grade 3 silicon nitride balls are matched (within microns) with hardened steel raceways that feature an ultra-smooth polished groove.Features:The balls are held in place by a reinforced polyamide cage. Every bearing is optimized with a low viscosity ceramicspeed blue grease to minimize fiction and increase bearing life. Non-contact seals complete the bearings, keeping dirt and moisture out. Ceramicspeed bearings can be used for any cycling discipline: road, tt, tri, track, cross and mtb. The benefits are super low friction, better power transfer and increased bearing life.During the building process, ceramicspeed check each bearing four times by hand to ensure that all parts are matched perfectly. Ceramicspeed balls are 400% smoother, 128% harder and 58% lighter than standard steel bearings normally used in the bicycle industry. When comparing the ceramicspeed balls with other ceramic balls in the industry, you will find that the ceramicspeed balls are 15% harder, take 99% higher loads and are 100% smoother.
How does shipping work in the UK?
For smaller items (excluding bikes) We offer a variety of shipping options within the UK. Giving you the choice on your shipping time. You'll see 3 options on shipping times and prices from Royal Mail on our checkout page, each will require a signature on delivery.
The 3 options are:
Royal mail Tracked 24 - 1 to 2 working days
Royal mail Tracked 48 - 2 to 4 working days
Royal mail Special Delivery (Before 1pm) - Next Working Day
For complete bikes we offer 2 options:
Bike Delivery (Boxed) - 4-6 working days
Bike Delivery (Built) - 7-10 Working Days
International shipping. What to expect.
We ship worldwide, and international shipping usually goes smoothly.
Please note that you’ll be responsible for any duties or taxes once your order arrives in your country. The carrier will typically contact you to complete the necessary steps for delivery—this often includes paying applicable fees or taxes.
All imported goods must go through customs, which is entirely outside of our control. This process can take anywhere from a few hours to several weeks, depending on your country’s regulations.
Once your order ships, you'll receive a tracking number. We see the same tracking updates that you do, so we recommend keeping a close eye on them to stay informed.