Shimano UN300 cartridge bearing Square Taper (JIS) bottom bracket with alloy cups. Successor to the UN26 and UN55 series, this component covers a wide range of applications from Touring and City bikes to older Road and Mountain bikes.
Suitable for traditional square mount chainsets, featuring a 68mm shell with BSA (English) 1.370" x 24tpi thread.
Crank bolts are not included.
We ship fast! Our stock levels are updated live and most orders placed before 14:00hrs are shipped same-day (Monday to Friday).
Each product page will show estimated dispatch times.
Standard UK shipping is FREE*.
Express shipping options are available on checkout.
We also offer Click & Collect from our Warehouse Mon to Fri 9:00 to 5:00 so if you are near to us at RG10 9SH why not come over and collect it 👍🏻
Europe standard shipping is £3.99 with an Express option available.
We have had to disable shipping to the EU. We hope to be able to resume shipping to more EU destinations shortly.
REST OF THE WORLD
We have had to suspend shipping outside of the UK. We hope to be able to resume shipping worldwide shortly.
We offer a no-quibble 30-days refund policy*. There's no need to contact us before returning your item(s). Simply send it back to the following address:
Sprocket and Gear (Returns), Kingfisher Works, Tag Lane, Hare Hatch, RG10 9SH, United Kingdom
Be sure to include your order number and reason for return. Sorry, but we can't cover, or contribute to, the cost of the return.
* To read our full returns/refund policy please click here.