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Free UK standard shipping on orders over £50
The Praxis Works BB CONV Shimano 24mm MTB 73mm BB30/PF30 Ceramic bottom bracket is a precision-engineered component designed to enhance drivetrain efficiency for mountain biking applications. Constructed from forged and machined heat-treated 7075 T6 aluminium, this bottom bracket offers a robust yet lightweight solution that meets the demands of rigorous off-road cycling. Its patent-pending outboard bearing design, combined with ceramic cartridge radial bearings, ensures reduced friction and extended service life, delivering consistent, smooth rotation under varied terrain conditions.
Specifically tailored for BB30 and PF30 frames, this bottom bracket provides a secure interface for Shimano Hollowtech II cranks. The collet-style non-drive cup expansion mechanism guarantees a firm, wiggle-free press fit, while the non-drive O-ring accommodates frame width variations to ensure optimal installation. Designed for 73mm MTB configurations, it supports ISCG05 and ST mounts but is not compatible with BBRight, BB386EVO, or Cannondale BB30A frames. For further details and support, comprehensive installation instructions and a two-year warranty are provided, underscoring the product’s reliability and quality. Explore more within the Bikes category to complement your setup with compatible components.
Is this bottom bracket compatible with different rider frame sizes or crank configurations?
This model is designed specifically for 73mm MTB BB30 and PF30 frames and Shimano Hollowtech II cranks. It supports variations within these standards but is not compatible with alternative frame types or cranksets outside these specifications.
What additional components should I consider to complement this bottom bracket?
To optimise your drivetrain system, consider pairing this bottom bracket with high-quality Shimano Hollowtech II cranksets, pedals, and compatible chainrings. For enhanced safety and performance, explore related accessories such as helmets and lighting systems available within our accessories collection.
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.Â
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.Â
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.

