Bottom Brackets
This is the bottom bracket needed to fit a Praxis M30 crank onto a bike with BB86/90/92 bottom bracket system. Typically found on Trek bikes.
T47 threaded BB cups for T47 frames and 24.00mm spindle diameter cranks. Cups have internal bearings, and are typically used in BB shells with widths wider than 73mm. Machined aluminum cups thread together directly into a T47 BB shell.
Our solution for running a 30mm spindle crankset in a BSA threaded frame. Machined aluminum cups thread in to a standard threaded frame and feature Enduro 6806 Angular Contact sealed bearings outboard of the BB shell. Fully serviceable.
Expand your choice of cranks for use in frames with 41mm ID shells. Replace your bottom bracket with these dual-row flanged bearings and run 29mm spindle SRAM DUB compatible cranks in your frame. These bearings fit directly in frames with 41mm ID bottom..
The Hollow DH 165mm is made just for the gravity crowd. With the combined benefits of a wide bearing stance, M30 aluminum spindle, and robust hollow aluminum arms, our new DH crank is ready for the starting gate.
Threaded BB for BB86, BB92 and PF90 frames and 24mm diameter spindle cranks. Machined cups thread together for stability, increased bearing life, and simple installation and maintenance.
Enduro Angular Contact sealed bearing for GXP non-drive side bottom bracket cups. This is an Enduro 24x37 bearing with an aluminum insert pressed in to match the specifications of the GXP left bearing.
Run 29mm spindle SRAM DUB compatible cranks in a BSA threaded frame. Machined aluminum cups thread in to a standard threaded frame and feature Enduro 6806/29 ABEC-3 sealed bearings outboard of the BB shell. Fully serviceable.
Thread together bottom bracket for frames using the BBRight™ bottom bracket standard. Two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance.
The PF30-SRAM adapts cranks with 22/24 mm spindles (SRAM/Truvativ) to work on Pressfit 30 frames. Simply tap the adapters into the 6806 bearing in the BB shell, install the spindle and cranks. Use our Crank Spindle Spacers to adjust your chainline,..
T47 threaded BB cups for T47 frames and 30mm diameter spindle cranks. Cups have internal bearings, and can be used in BB shells with widths from 68mm to 132mm. Machined aluminum cups thread together directly into a T47 BB shell
Threaded ABEC-3 bottom bracket for Fat Bike PF41 (BB121) and 24mm spindle diameter cranks. Machined cups thread together for stability, increased bearing life, and simple installation and maintenance. No more creaking. Smooth operation.
The bike bottom bracket is the hub where your seat tube, frame tube, and a chainstay all come together to create your drivetrain. Inside the bottom bracket, you will find a spindle bracket that connects to the crankset and bearings, causing the crankset to rotate efficiently. These components fit many bike designs and primarily come in a threaded, press-fit, or square taper design. When the rider pedals, energy is produced and propels the bike forward. The bearings inside provide a smooth ride with little resistance and minimal effort.
Our bike bottom brackets and spindle brackets work with all existing bracket designs from all leading manufacturers. They work well with the BB30, BB86, BB90, BB92, BB95, OSBB, and BB386EVO, to name a few.
When To Replace Bike Bottom Brackets & Spindle Brackets
If you hear strange noises coming from your brackets, that could be signaling that there is a lot of play in your bearings. The bearings inside may need repair if you're experiencing side-to-side movement with the crank arm. If you feel movement in the crank arm, this could mean that you need to perform repairs. If you have play in your bottom bracket, it can cause your crankset to move and drop your chain while you're riding. Also, if you experience any wobble or play in your ride, it could mean that your bracket contains dirt or water. Debris will make it harder for you to pedal.
Why Choose Bottom Brackets from Big & Tall Bikes?
You can use our bottom bracket adapter kits to install a standard bearing into your PF30 or BB30 frame. With Zinn, you can feel confident that you will have no installation issues and eliminate any future headaches. All you need to do is browse this page, select the right part for your particular bike, and leave the shipping to us. If you have any additional questions, feel free to schedule a call or email us at [email protected].
