BBInfinite T47-External Bootm Bracket
We love the guys at BBInfinite. Very knowledgable and great customer support. Our steel bearing go-to-guys.
We offer fast shipping and easy returns. More details can be found on our Shipping & Returns Page
It's important to care for your gear. We make recommendations on our Product Care Page
Info
JUST THE FACTS:
The BBInfinite T47E module for Road Crank Sets. All BBInfinite T47i external bottom bracket modules ship with the special tool, instructions, and hardware required for easy, trouble-free installation. NOTE: Installation of this bottom bracket requires the use of a socket-style, 16-notch tool such as the classic Shimano TL-FC33 or Park Tools BBT-69.2, and many others. This tool is NOT provided with purchase of the BBInfinite T47E module.
Compatibility:
• All T47 x 68mm Frame BB Shells
ABOUT OUR BEARING CHOICES:
ABEC-7 Steel Bearings: Crafted from SAE 52100 chrome steel, our BBInfinite ABEC-7 (ISO 492, Class 4) bearings are so buttery that you’d have to buy our Ceramitechs to find anything better. These bearings feature mid-contact seals for extreme performance and durability. Each bearing comes lubricated with Kluber or Koyo. 1-Year Bearing Exchange Warranty.
MORE THAN EXTREME SPEED AND SILENCE:
BBInfinite T47 bottom bracket modules maintain optimal chain-lines for crisp, consistent shifting and drivetrain performance while dishing out trouble-free mile after trouble-free mile. From the gorgeous, high-luster of our Type-II MilSpec hard anodized finish to the sculpted lines of our One-Piece Design (OPD) bearing module that unitizes the road bike bottom bracket structure to eliminate all potential creaks before they start, every aspect of our architecture fuses beauty with durability and performance.
Our Shimano-pattern, 24mm spindle optimized design is set to the widest stance the crank format allows while ensuring that interfaces between crank arm splines and spindle splines have maximum engagement and Q-factor is set as narrow as possible.
POWER METER FRIENDLY
This BBInfinite T47E module for Shimano-pattern, 24mm spindle crank sets is 100% compatible with all crank-based power meters, be they left-arm-only or dual power, everything works perfectly. Our minimalist drive-side tool interface flange ensures zero interference with protruding power-meter back plates.
WHY DO BBINFINITE BOTTOM BRACKETS SPIN LIKE CRAZY?:
Threaded frame bottom bracket shells are notoriously misaligned, and so it is inadvisable to use this misaligned frame as the primary aligning member for bottom bracket bearings. Yet, that is what our multi-piece bottom bracket competition does, and this explains why their systems frequently fail prematurely and creak all too often.
A BBInfinite OPD (One-Piece-Design) T47 bottom bracket module is a CNC precision-machined hub---like the front wheel hub on your bike---that you thread securely into your frame. And just like your trouble-free wheel hub, BBInfinite OPD bottom brackets have perfectly aligned bearings regardless of your frame’s BB shell alignment and tolerances. Perfectly aligned bearings are essential for thousands of miles of trouble-free use and extreme spin performance.
WHAT KEEPS BBINFINITE BOTTOM BRACKETS FROM CREAKING?
BBInfinite OPD is the answer for creaking bottom bracket problems as well. Pedaling forces conspire to lever, and rock, and eventually work multi-piece systems loose. The unitized nature of BBInfinite OPD cancels these forces out entirely, which means creaking has no place to start in the first place. It really is that simple.
INSTALLATION IS A SNAP WITH BBINFINITE:
All BBInfinite T47E bottom brackets ship with the special socket needed to install the polymer stabilizer ring, all hardware, and instructions you need to get the job done correctly with ease and confidence. NOTE: Installation of this bottom bracket requires the use of a socket-style, 16-notch tool such as the classic Shimano TL-FC33 or Park Tools BBT-69.2, and many others. This tool is NOT provided with purchase of the BBInfinite T47E module.
Weight: 99g
Frame Width: 68mm
Frame Diameter: T47 Threaded
Spindle Diameter: 24mm Shimano
Bearing Size: 6805
Weight: 102g
Frame Width: 68mm
Frame Diameter: T47 Threaded
Spindle Diameter: 30mm
Bearing Size: 4030
Weight: 104g
Frame Width: 68mm
Frame Diameter: T47 Threaded
Spindle Diameter: DUB
Bearing Size: 4030
BEARING PRE-LOAD EXPLAINED
WHY MOST PRESSFIT FAILS
ONE-PIECE TO THE RESCUE
