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Free UK standard shipping on orders over £50
The CeramicSpeed T4730 Internal 30mm Bottom Bracket is engineered to combine the reliability of a threaded interface with the performance advantages of an oversized, wide shell. Designed according to the T47 standard popularized by custom frame builders in the United States, this bottom bracket features a 47mm inner diameter and an 86mm width, providing a perfect balance between stiffness and ease of installation. Its design allows riders to use stiff and lightweight 30mm spindle cranks, such as those from Rotor and FSA's 386EVO series, enhancing overall drivetrain efficiency.
This bottom bracket kit includes two cups with precision-pressed CeramicSpeed bearings, available in two distinct options: Standard and Coated. The Standard Bearings feature ceramic balls running on hardened-steel races, delivering a smooth ride with 75% less drag compared to stock options, translating to a minimal 0.3-0.4 watts per set. The Coated Bearings go a step further, featuring a special 3-micron coating on the races that reduces friction even more and extends bearing lifespan by 60%, making them ideal for those seeking peak durability and performance.
Included in the package are essential accessories such as spacers, dust covers, a wave washer, spacer tube, and a 10ml syringe of CeramicSpeed’s All Round Grease to ensure optimal lubrication right out of the box. This grease can be swapped for specialized options like TT and Track Grease for lower drag or LongLife Grease for enhanced durability under harsh riding conditions. With this bottom bracket, you gain a perfect combination of cutting-edge bearing technology and practical design for a seamless cycling experience.
Can I use this bottom bracket with any crankset?
This bottom bracket is specifically designed for 30mm spindle cranksets, such as those from Rotor and FSA’s 386EVO. It will not fit cranksets with different spindle diameters.
What are the advantages of Coated Bearings over Standard Bearings?
Coated Bearings feature a 3-micron special coating on the races that reduces friction even further and extends bearing life by 60%, making them ideal for riders seeking the highest performance and durability.
Stock Status Instock - Instore - Item Usually shipped or available for shop collection, within 48 hours (Mon-Fri)
Instock - Supplier Warehouse - Item is held in Suppliers Warehouse, Depending on the the supplier transfer time can vary from 24 Hours to 14 Days for item held in European warehouse.
(over festive periods some suppliers shut from 24th Dec-2nd Jan so orders can be delayed through this period.)
Brands held in European website include Trek, Bontrager, Electra, Wahoo, Rapha. For up-to-date transfer times please call customer services on +44 (0)1782 768622
Most out products are shipped by FedEx, providing unprecedented reliability and speed. Lightweight Spares below £25.00 value have a Royal Mail postage option, which is sent via Tracked 48 service. - £2.99
Shipping on all Domestic Orders over £50.00 (excluding bikes and home trainers) for delivery within the UK is completely FREE!
Bike and Home Trainers and oversize Goods £15.00 - FedEx
White Glove Bike Delivery - our white glove option has your bike personally delivered to you by a fully trained Mechanic and Bike fitter - £99.99
(Certain bikes will only have this option such as Cargo Bikes)
To Qualify for FREE Shipping:
In some cases, we may ship items out with another courier, depending on the status and availability of items ordered. (Customers will not be charged more and will be refunded any unused postage cost) If part of an order is cancelled and the total drops below the £50.00 free postage, a postage charge may be taken.
Delivery costs will be clearly stated on the checkout page, though you will need to register (to provide your delivery address) in order to see the delivery costs.
If you have any questions about delivery charges, times or none delivery please do not hesitate to get in touch by email:store@swinnertoncycles.co.uk or by telephone on +44 (0)1782 768622. Handling is normally 48 hours, but at busy periods this may be extended but we will endeavor to process your order within 5 working days. Please bear in mind in some cases orders can take longer to process, please contact us for more details.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
