Shimano BB-UN300 Square Taper Bottom Bracket (73-122.5mm)
SKU: 13899543318

Shimano BB-UN300 Square Taper Bottom Bracket (73-122.5mm)

Sale price$499.50 Regular price$555.00
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  • USA
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Shimano BB-UN300 Square Taper Bottom Bracket (73-122.5mm)Specifications A good quality bottom bracket for traditional chainsets Durable, hard wearing sealed cartridge bottom bracket with square tapered spindle fitting Better chainline stability with chain line stabilizer Maintenance free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life Fast and easy installation without adjustment Narrow body allows clearance for cable routing under the bottom bracket Crankarm fixing

Specifications

  • A good quality bottom bracket for traditional chainsets
  • Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting
  • Better chainline stability with chain line stabilizer
  • Maintenance-free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life
  • Fast and easy installation without adjustment
  • Narrow body allows clearance for cable routing under the bottom bracket
  • Crankarm fixing bolts sold separately
  • Top Features

  • Model No : BB-UN300
  • ItemCode : EBBUN300C23X
  • Series : TOURNEY A070 Series
  • Frame Interface: BSA/English Threaded
  • Spindle Interface: Square Taper
  • Bottom Bracket Shell ID: 1.37
  • Shell Width: 73mm
  • Spindle Lengths: 122.5mm
  • Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 13899543318

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    Constance Law
    Battle Creek, US
    ★★★★★ 5
    Good quality & trendy color sweater
    Size: Large, Color: Pure Apricot
    This sweater is very soft, light and very suitable for keeping mild warm at the temperature of 20c or inside an air conditioning room. Particularly, the trendy color for 2026 in brown suede jacket, this sweater is real good matching item! I like it! 😍😍😍
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    Reviewed in the United States on February 27, 2026
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    BETTY HILDRETH
    Waukegan, US
    ★★★★★ 5
    very stylish
    Size: Medium, Color: Pure Apricot
    true to size. very comfortable.
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    Reviewed in the United States on June 1, 2026
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    Cap47
    Whiting, US
    ★★★★★ 5
    Great Material
    Love the sweater. So soft.
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    Reviewed in the United States on May 23, 2026
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    Nomad Fan
    Battle Creek, US
    ★★★★★ 5
    Perfect!
    Size: Medium, Color: Pure Black
    Well made, soft comfortable and looks great.
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    Reviewed in the United States on June 6, 2026
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    Lisa Wald
    Bozeman, US
    ★★★★★ 5
    So soft
    Size: Large, Color: Pure Black
    Loved. Soft and cute
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 27, 2026

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