SHIMANO

Bottom Bracket Shimano BB-UN300 Square Taper 68mm BSA

€18.95

Axle length:

Bottom Bracket Shimano BB-UN300 Square Taper 68mm BSA
€18.95

Bottom Bracket Shimano BB-UN300 Square Taper 68mm BSA

The Shimano BB-UN300 is a high-quality and reliable JIS Square Taper bottom bracket designed for widely used square taper cranksets. It is a classic solution suitable for MTB, city and hybrid bikes.

Designed for frames with BSA threading and a 68 mm bottom bracket shell width, the cartridge bearing construction ensures smooth rotation, stable power transfer and long service life.

An integrated chain line stabilizer improves chain alignment, supporting better shifting performance and reduced drivetrain wear. The BB-UN300 supports standard, E-type and chain case configurations, offering excellent versatility.

  • Model: BB-UN300
  • Type: Square Taper (JIS)
  • Thread: BSA
  • BB shell width: 68 mm
  • Adapter material: Aluminum