Surly OD Enduro Bottom Bracket Regular 100mm

Surly OD Enduro Bottom Bracket Regular 100mm

Rugged performance for trail and enduro riding starts with a dependable bottom bracket. The Surly OD Enduro Bottom Bracket fits standard English threaded shells with a 1.37" inner diameter and a 100 mm width, keeping your crankset aligned for powerful pedal strokes in tough terrain.

Finished in black for a clean, low-profile look, this unit uses the RaceFace EXI spindle interface for broad crank compatibility and solid rotational feel mile after mile.

Key Specifications

• BB shell interface: English
• BB shell width: 100 mm
• Shell ID: 1.37"
• Spindle interface: RaceFace EXI
• Color: Black
• Type: Regular

Why this matters

Durable seals and a straightforward install improve long-term reliability on muddy climbs, rocky descents, and all-day epics. The regular length maintains proper chainline across a wide range of cranksets, reducing binding and creaks while you push through technical sections.

Practical tips

Ensure your frame shell is 1.37" English threaded and confirm crank compatibility with the EXI interface. Use the appropriate BB tool for installation and regular maintenance to preserve smooth rotation and lasting performance on demanding rides.