
Best selling Bottom brackets
Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. Shimano BB-UN300
The Shimano BB-UN300 is a high-quality square taper bottom bracket designed for reliable performance and durability in various bicycle frames. With a shell width of 68 mm and an axle length of 117.5 mm, this bottom bracket is ideal for BSA-compatible frames. It features a robust construction with threaded bearing cups that allow for easy installation and maintenance. The bottom bracket is elegantly finished in black and made from aluminum, ensuring both low weight and high stability. Its versatile compatibility with standard, E-Type, and chain case variants makes it an excellent choice for different types of bicycles and applications.
- High-quality aluminum construction for durability
- Compatible with BSA frames and square taper axles
- Easy installation with threaded bearing cups.

2. Race Face X-Type Team XC bottom bracket BSA 68/73 mm
Race Face components are the result of Race Face's efforts to produce the strongest, lightest and best-looking bicycle components in the world. Inspired by Riders", the company motto, shows how much Race Face loves biking itself, the Race Face people know what they want, and with over 15 years of experience they know a lot about developing precision components. The engineers take an uncompromising approach to component concepts, because the goal is to leave the competition behind Race Face in awe - no matter what discipline. Whether you prefer road or off-road riding, cross-country adventures or giant jumps, Race Face's program combines superior technology with innovative concepts and the famous Race Face design. During the design process, the designers always think about the most important contact points between rider and bike: the seat, the feet and of course the hands. The Race Face products are designed with you, the biker, in mind. - Purpose: MTB - Weight: 95 g - Details: - BSA 68/73 mm housing width - Bearings are filled with Phil Wood waterproof grease to improve the durability of the bearing - Bearings made of CNC milled 6066 aluminium - Ball bearings with 16 balls - Bearings with triple seals, the grease stays where it should and the dirt outside - Fully serviceable with BB EXITOOL - Construction: hollow axle - frame compatibility: BSA bottom bracket - type: screwed bearing shells axle - axle support: 24mm

3. Truvativ ISIS Giga Pipe Team SL 118 x 68/68E/73 BSA
The Truvativ Giga Pipe Team SL bottom bracket is a high-quality component designed for use in mountain bikes. With an axle length of 118 mm and a shell width of 68 mm, this bottom bracket provides an optimal fit for BSA frames. It features an ISIS drive system that ensures efficient power transfer. The construction includes three sealed ball bearings, which guarantee smooth operation and durability. Weighing approximately 240 g, the Giga Pipe Team SL is lightweight and does not add unnecessary weight to the overall bike. Made in Taiwan, this bottom bracket combines quality and performance to meet the demands of discerning cyclists.
- Compatible with BSA frames and ISIS drive system
- Equipped with three sealed ball bearings for enhanced durability
- Lightweight construction at just 240 g.

4. Shimano Drive unit SG-8R36
The Shimano SG-8R36 drive unit is specially designed for urban cycling enthusiasts, combining performance and versatility. This essential component ensures smooth and efficient operation, allowing cyclists to navigate easily through urban environments, whether for daily commutes or leisurely rides.
It is part of the Shimano range of spare parts, known for its technical ingenuity and durability. The use of high-quality materials ensures increased resistance to the challenges of urban routes and varying weather conditions. This drive unit stands out not only for its robust design but also for its ability to provide a pleasant and effortless riding experience thanks to smooth shifting.
Key features of the Shimano SG-8R36 drive unit include:
- Durability: Made with high-quality materials, it is designed to withstand the challenges of urban cycling.
- Transmission efficiency: Allows for quick and effective gear changes, suited to the frequent stops of city trips.
- Ease of installation: Simple to install, this unit is compatible with a wide range of urban bikes.
- Reduction of effort: Optimizes power transfer, making it easier to pedal over long distances.
The ergonomic design of the Shimano SG-8R36 drive unit promotes hassle-free use. Whether you're a casual cyclist or a fan of long city excursions, this drive unit is designed to meet your needs and ensure optimal performance.
Choosing the Shimano SG-8R36 drive unit is opting for an essential part that will enhance your urban cycling experience. It will allow you to fully enjoy every ride while ensuring comfort and efficiency, making every outing more enjoyable.

5. Sram BB Preload Adjuster Kit Dub (Inc. Screw)
The Sram BB DUB Bottom Bracket Adjustment Set, developed by the brand Sram, is a must-have for passionate cyclists seeking the perfect adjustment of their bottom bracket. This kit is ideal for cycling enthusiasts who want to maximize the performance of their drivetrain. This adjustment set has been designed with the highest precision and quality, allowing you to easily adjust the preload of your bottom bracket. With these precise settings, you can enhance your pedaling power and optimize the power transfer on your bike. The Sram BB DUB Bottom Bracket Adjustment Set is very easy to use. Simply follow the straightforward instructions in the user manual to effortlessly adjust the preload of your bottom bracket. Whether you are an amateur or an experienced cyclist, you will appreciate the ease of use of this adjustment set. This Sram BB DUB Bottom Bracket Adjustment Set is a worthwhile investment for any cyclist looking to maximize their bike's performance. By properly adjusting the preload of your bottom bracket, you can benefit from smoother and more efficient power transfer, leading to an improved riding experience. Whether you are a road cyclist or a mountain biking enthusiast, the Sram BB DUB Bottom Bracket Adjustment Set is an essential accessory for optimizing your bike's performance. Don't let poor bottom bracket adjustment hinder your performance. Invest in this high-quality adjustment set and enjoy a more comfortable and powerful riding experience.

6. Shimano SM-BB52 Hollowtech II
The SM-BB52 Hollowtech II bottom bracket from Shimano is a high-quality component designed to enhance pedaling performance and efficiency while cycling. It is specifically designed for use with BSA frames and features excellent sealing that extends the lifespan of the bearing and minimizes maintenance. With a spindle diameter of 24 mm, this bottom bracket is ideal for various mountain bike and road applications. The threaded bearing cups ensure a stable and reliable installation, while the lightweight design at 0.28 kg supports the overall performance of the bike. Made in France, the SM-BB52 Hollowtech II combines quality and functionality to meet the demands of discerning cyclists.
- Improved sealing for higher pedaling performance
- Compatible with 24 mm spindles
- Threaded bearing cups for stable installation.

7. Ceramicspeed ITA Shimano Road Black

8. Enduro Bsa Gxp
Bottom bracket kit for SRAM GXP External Cup BBs.
Enduro's entry-level bottom bracket bearing kit, although it is many steps up from other products on the market. We combine our ABEC-3 radial bearings with all necessary seals and spacers to ensure a precise, professional installation. This kit features an application-specific drive-side bearing with an extended inner race and 22mm and 24mm outer seals to keep the elements out.
For the easiest removal and installation of this bearing kit, we recommend the BRT-003 24m x 37mm bearing tool. With the BRT-003 you can quickly remove and install the bearings in a few easy steps while the bottom bracket is still in the bike.

9. Race Face Spacer Kit Cinch BB Spacer BB386
The Race Face Next SL Cinch BB386 Spacer Kit is an essential accessory for MTB enthusiasts seeking performance and reliability. Developed by the renowned brand Race Face, this kit positions itself as a crucial ally in optimizing your mountain bike's performance.
Specifically designed for the Next SL cranksets, this kit is an excellent solution for those looking to enhance their bike's compatibility with the BB386 bottom bracket. Its advanced design ensures quick and easy installation, allowing you to customize your bike according to your riding preferences.
Here are some notable features of this kit:
- Compatibility: Suitable for Race Face cranksets and many other bottom brackets on the market.
- Durability: Made from high-quality materials that withstand challenging outdoor conditions.
- Lightweight: Minimizes the weight of your mountain bike while maintaining the necessary stability for optimal performance.
- Easy Installation: Designed for hassle-free mounting, so you can spend more time riding and less time tinkering.
The Race Face Next SL Cinch BB386 Spacer Kit is the perfect tool to optimize your MTB's performance. Whether you're a hobby racer or a professional, this accessory helps you get the most out of your mountain experience. Investing in this kit means choosing quality and innovation, ensuring smoother and more efficient rides.
With this kit, you're ready to explore new horizons and enhance your MTB skills while benefiting from the reputation of Race Face, known for excellence in bike equipment.

10. Token Fit TF37
Bottom bracket TOKEN Thread Fit TF37 series Rh: BB386 - KRG: Sram GXP.
