Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
BB-UN300 bottom bracket British thread, 68 - 110 mmA good quality bottom bracket for traditional chainsets Super accurate bearings for smooth operation and improved durability Durable, hard wearing sealed cartridge bottom bracket with square tapered spindle fitting Maintenance free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life Fast and easy installation without adjustment Narrow body allows clearance for cable routing under the bottom bracket
- A good quality bottom bracket for traditional chainsets
- Super-accurate bearings for smooth operation and improved durability
- Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting
- Maintenance-free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life
- Fast and easy installation without adjustment
- Narrow body allows clearance for cable routing under the bottom bracket
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 535 reviews
Sort
Product Reviews
★★★★★ 5
Great filter!
Excellent filter! Fits my 2017 BMW X5 f15. Eliminates all external odors from the street.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
★★★★★ 4
Fits bmw x5 35i 2015
Installation was pretty easy. Works as designed. Will update.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 16, 2023
★★★★★ 5
Great price
I love Mann filters. Great for the price and great quality. I was surprised how cheap they were ( my car takes 2 filters and two come in the box). They fit like a glove and now I am enjoying fresh air
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
★★★★★ 5
Can’t beat MANN quality
Bought to replace the filters on my 2015 bmw x5 as there was a musty smell from ac. Old filters were another junk company that fit very loosely. I was impressed by the quality and how secure the MANN filters locked into the housing; musty smell all gone now! Easy 10min replacement job, comes with VERY detailed instructions for the less mechanically inclined
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2024
★★★★★ 5
Great product
Fits our 2012 X5d perfectly. Do yourself a favor and youtube the process for replacing these. You'll see it's well worth doing yourself rather than paying a shop that charges a BMW premium on everything.
Also something I learned recently... this is a low cost high charge item at the mechanic. A lot of times when they suggest replacing these it's because they just tick the box and don't actually look at them. We had our mechanic admit this on a recent service where it was suggested to replace, when we had just done it ourselves in April.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 23, 2023