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Shimano BB-UN300 Square Type Bottom Bracket
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Shimano BB-UN300 Square Type Bottom Bracket

Shimano BB-UN300 Square Type Bottom Bracket

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From $413.00

Original: $1,180.00

-65%
Shimano BB-UN300 Square Type Bottom Bracket

$1,180.00

$413.00

The Story

Upgrade your drivetrain with the Shimano BB-UN300 Square Taper Bottom Bracket, engineered for smooth pedaling, long-lasting durability, and dependable performance. Designed with sealed cartridge bearings, the BB-UN300 minimizes maintenance while providing efficient power transfer for road bikes, mountain bikes, hybrid bikes, and commuter bicycles.

Its robust steel spindle and precision bearings ensure reliable operation in all riding conditions, making it an excellent replacement or upgrade for bikes using square taper cranksets.


Key Features

  • Genuine Shimano BB-UN300 square taper bottom bracket
  • Sealed cartridge bearings for smooth, maintenance-free performance
  • Durable steel spindle for reliable power transfer
  • Low-friction design improves pedaling efficiency
  • Corrosion-resistant construction for long service life
  • Easy installation and dependable everyday performance
  • Suitable for road, MTB, hybrid, trekking, and city bikes

Benefits

  • Smooth and efficient pedaling performance
  • Maintenance-free sealed bearing design
  • Excellent durability for everyday riding
  • Reliable Shimano quality and precision
  • Compatible with most JIS square taper cranksets

Description

Upgrade your drivetrain with the Shimano BB-UN300 Square Taper Bottom Bracket, engineered for smooth pedaling, long-lasting durability, and dependable performance. Designed with sealed cartridge bearings, the BB-UN300 minimizes maintenance while providing efficient power transfer for road bikes, mountain bikes, hybrid bikes, and commuter bicycles.

Its robust steel spindle and precision bearings ensure reliable operation in all riding conditions, making it an excellent replacement or upgrade for bikes using square taper cranksets.


Key Features

  • Genuine Shimano BB-UN300 square taper bottom bracket
  • Sealed cartridge bearings for smooth, maintenance-free performance
  • Durable steel spindle for reliable power transfer
  • Low-friction design improves pedaling efficiency
  • Corrosion-resistant construction for long service life
  • Easy installation and dependable everyday performance
  • Suitable for road, MTB, hybrid, trekking, and city bikes

Benefits

  • Smooth and efficient pedaling performance
  • Maintenance-free sealed bearing design
  • Excellent durability for everyday riding
  • Reliable Shimano quality and precision
  • Compatible with most JIS square taper cranksets