The Sunlite SL-26 bottom bracket is a rugged, service-ready replacement designed for bikes using JIS square taper cranksets. Built with an all-steel construction and sealed bearings, it prioritizes durability, compatibility, and long-term reliability—making it a dependable choice for recreational, commuter, and older MTB builds.
A chromoly spindle provides strength and resistance to wear, while sealed cartridge bearings ensure smooth rotation with minimal maintenance. With a 73mm English-threaded (BSA) shell and 122mm spindle length, the SL-26 is well suited for many triple and wider-chainline crank applications commonly found on mountain and hybrid bikes.
This is a straightforward, mechanic-friendly bottom bracket designed to restore smooth performance without unnecessary complexity.
Key Features
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Square taper (JIS) interface
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Durable steel body and steel cups
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Chromoly spindle for strength and longevity
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Sealed bearings for smooth, low-maintenance operation
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English / BSA threaded for broad frame compatibility
Specifications
Best For
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Mountain, hybrid, and commuter bikes
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Triple cranksets requiring wider chainline
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Service replacements and drivetrain refreshes
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Riders prioritizing durability and value
