WHEELS Mfg T47 Outboard Bottom Bracket

The T47 standard combines the reliability and creak-free nature of a threaded interface with the stiffness and bearing size benefits typically found in larger press-fit systems. It is essentially a threaded version of a press-fit shell, allowing for a more secure connection that is easier to service.

This unit is designed for cranksets with a 28mm or 30mm spindle diameter. Before purchasing, verify your crank spindle size and ensure your frame shell width falls within the 68mm to 100mm range.

The Enduro ABEC-3 bearings are fully serviceable, meaning you can remove the seals to clean and re-grease them when necessary. This extends the lifespan of the unit significantly compared to sealed, non-serviceable alternatives.

You will need a bottom bracket tool with a 48.5mm x 16-notch interface. This is a common standard for many outboard bearing cups, but it is worth double-checking your current toolset before beginning installation.

Yes, the protective sleeve acts as a physical barrier between your internal cables or hydraulic lines and the rotating spindle. It also helps keep debris and moisture out of the bearing area, which is crucial for long-term performance.