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MSW ST100 Bottom Bracket - English, 68 x 127.5mm, Square Taper JIS

Item Description

MSW ST100 Bottom Bracket – English 68 x 127.5mm, Square Taper JIS, Black

The MSW ST100 Bottom Bracket is a durable and reliable drivetrain component designed for smooth, efficient power transfer. Built for compatibility with square taper JIS cranksets, it’s an excellent choice for riders maintaining or upgrading classic and modern bike setups.

Constructed with rugged steel and featuring steel adjustable cups, the ST100 delivers long-lasting performance and resistance to wear and corrosion. Precision engineering ensures minimal flex and consistent pedaling efficiency, whether you're commuting, touring, or riding off-road.

  • Compatible with square taper JIS cranksets
  • English-threaded (BSA) interface for secure fitment
  • Durable steel construction with adjustable cups
  • Precision-machined for smooth, efficient power transfer
  • Includes axle bolts for installation
  • Ideal for road, mountain, and touring bikes
  • Interface: English / BSA Threaded
  • Shell Width: 68 mm
  • Shell ID: 1.37"
  • Spindle Type: Square Taper JIS
  • Spindle Length: 127.5 mm
  • Material: Steel (cups and spindle)
  • Included: Axle bolts
  • Color: Black

About Us

Located on Long Island in Wantagh, NY, Brands Cycle & Fitness was voted one of the  top six bike stores in the country  by Bicycling Magazine. Our staff of 60 to 110 employees (seasonally) wants to make your cycling and home fitness experiences as convenient and enjoyable as possible. Shop with us online, or come down and see us seven days a week.

For more than fifty years, we've been proud to be your resource for all things cycling. We hope to meet you or see you again soon!





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