Bottom Brackets
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.
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.
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,..
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 24.00mm spindle diameter cranks. Cups have outboard bearings, and are typically used in BB shells with widths from 68mm to 100mm. Machined aluminum cups thread together directly into a T47 BB shell.
Convert your BB30 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.
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.
Clydesdale Mountain Bike Crankset - 64/104bcd
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.
T47 threaded BB cups for T47 frames and 22/24mm spindle diameter SRAM GXP 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.
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.
Enduro 24x37 "ZERØ" Ceramic Hybrid sealed bearing for 24mm crank spindle applications. Direct OEM replacement for most BB86/92, Trek BB90/95 and with all Wheels Mfg PF30 Outboard, BB30 Outboard and BSA Threaded BBs.
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].
