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Sugino BB-SG75 STANDARD Bottom Bracket is an NJS-certified, Japan-made bottom bracket with nickel-chrome molybdenum steel spindle. ISO / BC1.37x24T, 68mm shell, 109mm spindle, SG75 4-taper system.
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The Sugino BB-SG75 STANDARD Bottom Bracket is a high-quality NJS-certified bottom bracket designed for the classic Sugino SG75 system. It is made for riders who care about smooth rotation, stable pedaling and precise Japanese manufacturing quality.
The BB-SG75 STANDARD uses a nickel-chrome molybdenum steel spindle for excellent strength and durability. It delivers a smooth, refined and stable rotation feel, making it a preferred choice for riders who value drivetrain precision and direct pedaling feedback.
This model uses ISO / BC1.37x24T threading, with a 68mm shell width and 109mm spindle length. It is built for the SG75 4-taper system and is intended to be used with compatible Sugino SG75 cranksets for a precise and complete drivetrain setup.
⚠️ Please note: this is an ISO system bottom bracket and must not be used with JIS system cranksets.
⚠️ The SG system is a dedicated specification and is not compatible with other common crank or bottom bracket systems. Please confirm compatibility before ordering.
If you are building a high-end single speed or track bike and want a bottom bracket with smooth rotation, precision and true Japanese craftsmanship, the Sugino BB-SG75 STANDARD is a classic choice.
Specifications
Brand: Sugino
Product Name: BB-SG75 STANDARD Bottom Bracket
Certification: NJS Certified
Material: Nickel-Chrome Molybdenum Steel
Thread Standard: ISO / BC1.37x24T
Shell Width: 68mm
Spindle Length: 109mm
Type: 4-taper(SG75)
Compatible System: Sugino SG75 System
Important Note: ISO system BB, not compatible with JIS cranksets
Important Note: SG system is a dedicated standard and is not compatible with other common systems
Use: Single Speed / Track Bike / NJS Builds / Fixed Gear
Made in: Japan