SKU: 77259065293

Shimano BB-UN300 Square Taper Bottom Bracket (68-118mm)

Sale price$499.50 Regular price$555.00
Save 10%

Pay in installments of $138.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Shimano BB-UN300 Square Taper Bottom Bracket (68-118mm)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 : EBBUN300B18X
  • Series : TOURNEY TX800 Series
  • Frame Interface: BSA/English Threaded
  • Spindle Interface: Square Taper
  • Bottom Bracket Shell ID: 1.37
  • Shell Width: 68mm
  • Spindle Length: 118mm
  • 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: 77259065293

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.1 ★★★★★
    Based on 24 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    D
    Verified Purchase
    D Lamb
    Cuba, US
    ★★★★★ 5
    works great
    Size: 60 Count (Pack of 1)
    helped with sleep
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 26, 2026
    A
    Verified Purchase
    Asil
    Charlottesville, US
    ★★★★★ 5
    Perfect
    Size: 60 Count (Pack of 1)
    Excellent quality! No side effects except for great drowsiness with just 1. Take 2 if you need to dream! Good night 💤 Best melatonin I’ve ever had.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 15, 2026
    R
    Verified Purchase
    rene m moore
    Louisville, US
    ★★★★★ 5
    Works great
    Size: 60 Count (Pack of 1)
    Great Stuff
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 15, 2026
    C
    Verified Purchase
    Cupcake
    Pawtucket, US
    ★★★★★ 5
    2 mg perfect for me
    Size: 60 Count (Pack of 1)
    Easier to low dose
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 12, 2026
    J
    Verified Purchase
    julian charles
    West Palm Beach, US
    ★★★★★ 4
    Good product
    Size: 60 Count (Pack of 1)
    Good product
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 22, 2025

    recommand products