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  • Shimano BB-UN300 Bottom Bracket 68-107mm

Description

The Shimano BB-UN300 Bottom Bracket is ideal for when you need to replace your worn square tapered bottom bracket.

Features:

  • A good quality bottom bracket for traditional chainsets
  • Super-accurate bearings for smooth operation and improved durability
  • Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting
  • 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
  • Available for 68mm & 73mm BB shell and in various lengths to suit your setup

 

Genuine, brand new, boxed Shimano product - Biketart are an official UK Shimano stockist.

 

Click here for installation/removal tool

 

Shimano BB-UN300 Bottom Bracket

12 Reviews12 total reviews

SKU: BBUN300B07 / Barcode: 4550170619282

The Shimano BB-UN300 Bottom Bracket is ideal for when you need to replace your worn square tapered bottom bracket.

Features:

  • A good quality bottom bracket for...
Sale price £15.95 Regular price RRP £23.99 SAVE 34%
Size

In stock

90 Day Returns -

Description

The Shimano BB-UN300 Bottom Bracket is ideal for when you need to replace your worn square tapered bottom bracket.

Features:

  • A good quality bottom bracket for traditional chainsets
  • Super-accurate bearings for smooth operation and improved durability
  • Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting
  • 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
  • Available for 68mm & 73mm BB shell and in various lengths to suit your setup

 

Genuine, brand new, boxed Shimano product - Biketart are an official UK Shimano stockist.

 

Click here for installation/removal tool

 

Customer Reviews

5.0
Rated 5.0 out of 5 stars
Based on 12 reviews
Total 5 star reviews: 12 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
12 reviews
  • J
    Josh
    I recommend this product
    Rated 5 out of 5 stars
    Yesterday
    5 Stars

    Does wat its suppose to. Came in a timely manner.

  • SW
    Stephen W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    bottom bracket

    always use shimano never had any issues

  • PS
    Paul S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Quality reliable BB at a great price

    Thought old BB was on its way out so ordered a new one ready for the change time. Arrived quickish and after inspecting old one it sounded a bit dry and grindy. New one felt nice and smoth out the box (as you would hope) old one (not a un300, think it was a UN55 has been in bike for over 5 yrs and has had 10,000's of winter muddy gritty miles, so hopefully this one last as well. Fitting was straight forward and with cranks fitted there was actually a noticable difference. done about 200 miles on it so far, feels a bit freer now. Bike is creak free once again.

  • DT
    Danny T.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    Bottom Bracket Bargain

    Great price and service. Speedy delivery

  • MJ
    Mr. John M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    Shimano bottom bracket

    Fitted perfectly.

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