Shimano Bb-un300 Square Taper Bottom Bracket [wdth:73mm Lgth:113mm]
Shimano Bb-un300 Square Taper Bottom Bracket [wdth:73mm Lgth:118mm]
Shimano Bb-un300 Square Taper Bottom Bracket [wdth:68mm Lgth:113mm]
Shimano Bb-un300 Square Taper Bottom Bracket [wdth:68mm Lgth:107mm]
Shimano Bb-un300 Square Taper Bottom Bracket [wdth:68mm Lgth:110mm]
Shimano Bb-un300 Square Taper Bottom Bracket [wdth:68mm Lgth:115mm]
Shimano Bb-un300 Square Taper Bottom Bracket [wdth:73mm Lgth:122mm]
Shimano Bb-un300 Square Taper Bottom Bracket [wdth:68mm Lgth:117mm]
Shimano Bb-un300 Square Taper Bottom Bracket [wdth:68mm Lgth:118mm]
Shimano Bb-un300 Square Taper Bottom Bracket [wdth:68mm Lgth:123mm]
Shimano Bb-un300 Square Taper Bottom Bracket [wdth:68mm Lgth:122mm]
Shimano Bb-un300 Square Taper Bottom Bracket [wdth:68mm Lgth:127mm]

Shimano Bb-un300 Square Taper Bottom Bracket

Regular price$33.00
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The Shimano BB-UN300 is a square taper bottom bracket designed for smooth pedalling performance and long-lasting reliability. With sealed cartridge bearings to keep out dirt and moisture, it’s an excellent upgrade or replacement for bikes using a traditional square taper crankset.

Why Choose the Shimano BB-UN300?

  • Sealed cartridge design provides low-maintenance durability.
  • Compatible with square taper (JIS) cranksets.
  • Available in multiple shell widths and spindle lengths to suit a wide range of bikes.
  • A dependable option for MTB, trekking, hybrid, and city bikes.

Component

Specification

Model

Shimano BB-UN300

Type

Square taper (JIS) bottom bracket

Shell Widths

68 mm, 73 mm

Spindle Lengths

107 mm, 110 mm, 113 mm, 117.5 mm, 122.5 mm, 127.5 mm

Axle Type

Square taper (JIS)

Bearings

Sealed cartridge unit

Application

MTB, trekking, hybrid, city bikes

Specifications subject to change without notice

All Bikes Are Only Avaliable Through Local Pickup

Please select local pickup at checkout

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