Shimano UN300 Square Taper Bottom Bracket

Product Details

The BB-UN300 square taper bottom bracket was launched by Shimano as successor of the models BB-UN26 and BB-UN55.

It covers a wide range of applications, from Touring and City bikes to older Road and Mountain bikes. BB-UN300 is available with BSA thread and in different axle lengths. 


Features
  • Bearings: steel
  • Axle Material: steel
  • Bottom Bracket Cup Material: aluminium (left), aluminium / steel (right)
  • For all cranks with JIS square mount
  • Crank bolts not included
  • Narrow body allows clearance for cable routing under the bottom bracket

About Shimano
Established in Japan in 1921, Shimano is the worlds largest bicycle component manufacturer. Whether it be drive systems, brakes, pedals or shoes, Shimano stands for reliable quality and performance. From Road & Gravel to Mountain, Touring & Urban use, Mechanical or Electric.

Shimano UN300 Square Taper Bottom Bracket

Product Code 20265502
Other products by Shimano
$27.00
RRP $30.00 | Save 10%
  Options Price RRP In
Store
With
Supplier
BSA Thread / 68 x 110mm $27.00 $30.00
BSA Thread / 68 x 113mm $27.00 $30.00
BSA Thread / 68 x 115mm $27.00 $30.00
BSA Thread / 68 x 118mm $27.00 $30.00
BSA Thread / 68 x 122mm $27.00 $30.00
BSA Thread / 68 x 127.5mm $27.00 $30.00
BSA Thread / 73 x 113mm $27.00 $30.00
BSA Thread / 73 x 118mm $27.00 $30.00
BSA Thread / 73 x 122mm $27.00 $30.00
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  • In-store: Expect delivery in 2-3 days.
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Product Details

The BB-UN300 square taper bottom bracket was launched by Shimano as successor of the models BB-UN26 and BB-UN55.

It covers a wide range of applications, from Touring and City bikes to older Road and Mountain bikes. BB-UN300 is available with BSA thread and in different axle lengths. 


Features
  • Bearings: steel
  • Axle Material: steel
  • Bottom Bracket Cup Material: aluminium (left), aluminium / steel (right)
  • For all cranks with JIS square mount
  • Crank bolts not included
  • Narrow body allows clearance for cable routing under the bottom bracket

About Shimano
Established in Japan in 1921, Shimano is the worlds largest bicycle component manufacturer. Whether it be drive systems, brakes, pedals or shoes, Shimano stands for reliable quality and performance. From Road & Gravel to Mountain, Touring & Urban use, Mechanical or Electric.