Bottom Brackets
The two machined aluminum cups thread together ensuring the bottom bracket remains stable in the frame, increasing bearing life, and simplifying maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing...
46mm inside diameter cup spacers that fit between a bottom bracket cup and the frame. Machined from 6061 aluminum and anodized black. These spacers can be used for a few different scenarios:
Thread together BB for 386EVO and BBRIGHT frames and 30mm spindle diameter cranks. Machined aluminum cups thread together for stability, increased bearing life, and simple installation and maintenance.
Thread together BB for 386EVO frames and 22/24mm diameter spindle cranks. Machined aluminum cups thread together for stability, increased bearing life, and simple installation and maintenance.
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.
The BBUNIV-SRAM kit adapts SRAM/Truvativ cranks to virtually any BB/PF30 frame, including mountain bikes, 2x10 systems, narrow-shell road bikes, road triples, Cannondale BB30a & PF30a, etc. Simply tap the adapters into the 6806 bearing...
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 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 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 22/24mm (SRAM GXP) cranks. Machined cups thread together for stability, increased bearing life, and simple installation and maintenance. No more creaking. Smooth operation.
Thread together bottom bracket for frames using the PF30 bottom bracket standard. Two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance.
Thread together bottom bracket for frames using the PF30 bottom bracket standard. Two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance.
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].
