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Shimano UN53 Square Taper BB

Item #: BB407A00
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USD$9.99 67% off USD$29.99 msrp
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Customers Also Bought
Shimano Deore LX/STX-RC/STX UN53 bottom brackets are low maintenance, high reliability bottom brackets suitable for a wide variety of applications.
  • English Threaded
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  • Crank bolts not included
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REVIEW SNAPSHOT®

by PowerReviews
Shimano UN53 Square Taper BB
 
4.4

(based on 8 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to install (4)

Cons

    Best Uses

        • Was this a gift?:
        • No (4)

      Reviewed by 8 customers

      Sort by

      Displaying reviews 1-8

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      4.0

      great replacement

      By Alex

      from Santa Rosa, CA

      About Me Casual/ Recreational

      Verified Reviewer

      Pros

      • Easy To Install
      • Price

      Cons

        Best Uses

        • Mountain Biking
        • Replacement

        Comments about Shimano UN53 Square Taper BB:

        This was a replacement BB for my mountain bike. I replaced it when I replaced my crank and front derailleur. I installed it on my own and it wasn't too hard to do. I had some problems getting my front derailleur back in line but now it works like a charm. Just make sure you have the right tools for the job.

        • Was this a gift?:
        • No
         
        5.0

        Great Replacement Crankset for HYBRID

        By Mark T

        from Verona, PA (Pittsburgh area)

        About Me Casual/ Recreational

        Verified Buyer

        Pros

        • Attractive Design
        • Easy To Install

        Cons

          Best Uses

          • Casual Riding

          Comments about Shimano UN53 Square Taper BB:

          Installed on Trek Verve 3 as a replacement for the stock Suntour NEX, 48/38/28 which wore out after riding 2000 mile this year. I bought this crank because I live just outside of Pittsburgh and it is mostly hills (other than the rails-to-trails bike paths). I wanted the slightly smaller gear rings for the middle and smaller gears. I also have long legs (34" inseam) so I also got the longer cranks arms to give me more torque.

          Installation was very easy. My friend has a a very basic bicycle tool kit and we were able to replace the Crankset without difficulty. I also bought a bottom bracket but did not need to replace it. The stock bottom bracket on the Verve is compatible with the crankset.

          Today I took it out and road up some 4% grades and a am very happy with the performance. With the smaller gears it is much easier to maintain my cadence when climbing and even though the gearing is lower resulting in faster climbing.

          • Was this a gift?:
          • No
           
          5.0

          Get the UN-55 first

          By HoldTheOnions

          from Las Vegas

          About Me Avid Cyclist

          Pros

          • Durable
          • Easy To Install

          Cons

            Best Uses

              Comments about Shimano UN53 Square Taper BB:

              I have the UN-55 right now. If you are concerned about the plastic cup, then spend the extra $12 on the UN-55 to get the metal cup and then you can buy the UN-53 in the future for replacements and just re-use the metal cup. I'm close to 3k miles on the UN-55 and it's still perfectly smooth, so not sure how long it will be before I need a new one, but that's the plan anyway. :)

              • Was this a gift?:
              • No
               
              4.0

              Great price, great choice

              By Stonero

              from México City

              About Me Commuter

              Verified Buyer

              Pros

              • CHEAP
              • Durable
              • Easy To Install

              Cons

              • Heavy

              Best Uses

              • Multi-use

              Comments about Shimano UN53 Square Taper BB:

              Great choice, low price

              • Was this a gift?:
              • No
               
              4.0

              Ordered Friday, received on Monday!

              By Frank the Tank

              from Michigan

              Verified Reviewer

              Pros

              • Fast Shipping
              • Part fits

              Cons

                Best Uses

                  Comments about Shimano UN53 Square Taper BB:

                  Part fits. No more squeaky when I pedal. Wonderful silence.

                   
                  4.0

                  Could have worked, other problems arose.

                  By Stubs

                  from Lakewood, WA

                  Verified Buyer

                  Pros

                  • Metal cage
                  • Sealed bearings

                  Cons

                    Best Uses

                      Comments about Shimano UN53 Square Taper BB:

                      As always, make sure you measure properly, but also check the threads to make sure they are clean and sharp. Mine had a casting flaw that caused the BB to skip a thread and it was all downhill from there. Nice product from what I could tell, but not able to use it right now for other reasons.

                      (2 of 2 customers found this review helpful)

                       
                      4.0

                      Great price for durability

                      By Eric

                      from San Bernardino, CA

                      Verified Reviewer

                      Pros

                      • price
                      • Strength

                      Cons

                      • Plastic cup
                      • Weight

                      Best Uses

                        Comments about Shimano UN53 Square Taper BB:

                        Great bottom bracket for the money, despite the plastic non-drive side cup, it is a very durable unit. Its a tad heavier than the un-73 but for the price and longevity, you can't complain.

                        (1 of 1 customers found this review helpful)

                         
                        5.0

                        It's a Bottom bracket

                        By BTphoto

                        from Wpb Fl.

                        Verified Buyer

                        Comments about Shimano UN53 Square Taper BB:

                        shimano durability

                        Displaying reviews 1-8

                        Back to top

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