Bottom Brackets
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.
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.
External English (BSA) threaded bottom bracket for 73mm shells. We use only Enduro bearings and silicone seals for the most durable and smoothest bottom brackets available. Fully serviceable.
The PF30-SHIM adapts 24mm Spindle Cranks (Shimano, FSA, etc.) to work on Pressfit 30 frames. Simply tap the adapters into the 6806 bearing in the BB shell, install the spindle and cranks.
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.
The BB30-SRAM adapts 22/24mm Spindle Cranks (SRAM/TruVativ) to work on BB30 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, or take up any side.
T47 threaded BB cups for T47 frames and 30mm spindle diameter cranks. Cups have outboard bearings and can be used in BB shells with widths from 68mm to 100mm. Machined aluminum cups thread together directly into a T47 BB shell.
T47 threaded BB cups for T47 frames and 29mm diameter spindle SRAM DUB compatible cranks. Cups have internal bearings, and can be used in BB shells with widths from 86mm to 121mm. Machined aluminum cups thread together directly into a T47 BB shell.
Convert your PF30 frame to a single-speed setup with our simple to use eccentric bottom bracket. Enduro Angular Contact sealed bearings. Double lip seals on all bearings with high fill rate top quality grease for maximum durability.
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.
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].
