Race Face SRX ISIS Bottom Bracket
Best durable replacement for riders maintaining classic mountain bike drivetrains.
A reliable, durable option for riders utilizing the ISIS spline standard. Its aluminum construction and high-pressure seals offer a solid balance of longevity and performance for standard drivetrain setups.
$37.99
More SRX options
Who it's for
- Aggressive mountain bikers seeking a long-lasting and dependable drivetrain component
- All-weather riders who frequently encounter muddy or wet trail conditions
- Performance-oriented cyclists wanting efficient energy output during steep climbs
Who should skip it
- Weight-conscious racers looking to minimize every gram on their build
- Owners of newer bikes equipped with integrated or hollow-axle systems
- Home mechanics who prefer working with universal or common bike tools
Performance breakdown
Structural Integrity
6061-T6 aluminum cups provide a rock-solid foundation for aggressive riding.
Contamination Resistance
High-pressure axle seals effectively block grit and moisture from internal bearings.
Drivetrain Tuning
Adjustable chainline offers precise flexibility for dialing in your drivetrain setup.
Installation Complexity
Requires a specific ISIS tool, making home installation slightly more involved.
Standard Compatibility
The ISIS spline interface is reliable but increasingly rare on modern bikes.
Maintenance Ease
Straightforward design allows for efficient servicing once the proper tools are acquired.
Key Specs
Material
6061-T6 aluminum
Spindle Type
ISIS
Shell Width
73 mm
Spindle Length
113 mm
Sealing Type
High-pressure axle seals
Adjustable Chainline
Yes
Tool Interface
ISIS installation tool
Water Resistant
Yes
Know before you buy
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Ask Metto anything about the Race Face SRX ISIS Bottom Bracket before you decide.
