(888) 880-3811 (888) 880-3811
Show Prices In:

Shimano XT SM-BB70 Bottom Bracket

Item #: BB276E00
Buy Now
USD$24.99 17% off USD$29.99 msrp
Found a Lower Price?
Availability In Stock
Quantity
Add To Cart
Add To Wishlist
close

Tell a friend! We'll send your friends the page and your message.
Note: You and your friend's email addresses are only used once as a referral. We will not collect or store the email addresses.

Friend's Name:
Your Name:
Friend's Email:
Your Email:
Message
(500 char. max)
Notify Me
Receive an email when this product becomes available.

Enter your name and email to be notified when this product is in stock and available to purchase.
First Name:
Last Name:
Email:
Customers Also Bought
The standard XT bottom bracket is a mainstay of modern mountain biking. This replacement set of Hollowtech II outboard bearing bottom bracket cups for Shimano XT M770 series of cranksets offers smooth, stiff performance for all Shimano cranks. Will also work for any Hollowtech II type mountain bike cranksets such as Shimano Deore or XTR. Note: Not compatible with Road type Hollowtech cranks.
  • Includes Left and Right Cups
  • English Threaded
  • Fits 68 or 73mm bottom bracket shells (most modern mountain bikes)
  • SM-BB70

Related Products
Shimano UN55 Bottom Bracket High quality Shimano sealed ...
Hope Stainless Steel Bottom Bracket Keep your HollowTech ...
Truvativ�s PressFit 30 BB features an integrated seal, ...

REVIEW SNAPSHOT®

by PowerReviews
Shimano XT SM-BB70 Bottom Bracket
 
4.5

(based on 13 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (7)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to install (10)
  • Lightweight (8)
  • Durable (6)
  • Attractive (4)

Cons

    Best Uses

    • Mountain biking (8)
    • Casual riding (4)
    • Upgrade (3)
      • Reviewer Profile:
      • Avid cyclist (6), Casual/ recreational (3)
      • Was this a gift?:
      • No (10)

    Reviewed by 13 customers

    Sort by

    Displaying reviews 1-10

    Back to top

    Previous | Next »

     
    4.0

    Smooth bottom bracket

    By Eric

    from Redlands, CA

    About Me Avid Cyclist

    Verified Reviewer

    Pros

    • Attractive Design
    • Durable
    • Easy To Install
    • Lightweight

    Cons

      Best Uses

      • Casual Riding
      • Mountain Biking
      • Upgrade

      Comments about Shimano XT SM-BB70 Bottom Bracket:

      Easy to install, smooth, quiet and durable. I have taken some major hits to the cranks and the bottom bracket is still smooth after 2000 miles of trail riding.

      • Was this a gift?:
      • No
       
      4.0

      Good quality product at a great price!

      By Webmeister

      from Vancouver BC

      About Me Avid Cyclist

      Verified Buyer

      Pros

      • Durable
      • Easy To Install
      • Excellent Instructions

      Cons

        Best Uses

        • Casual Riding
        • Mountain Biking

        Comments about Shimano XT SM-BB70 Bottom Bracket:

        I replaced the original XT bracket after 5 years and am entirely happy with the stock product. Spending double or more for a "boutique brand" seems unnecessary and wasteful.

        • Was this a gift?:
        • No
         
        5.0

        Easy replacement and a perfect fit

        By Mike H

        from St. Louis, MO

        About Me Casual/ Recreational

        Verified Buyer

        Pros

        • Easy To Install

        Cons

          Best Uses

            Comments about Shimano XT SM-BB70 Bottom Bracket:

            This bottom bracket was a replacement BB for my 2009 Specialized Epic, which had a bad left side bearing. Installation was simple with the Park BBT-9 bottom bracket tool. Took about 10 minutes.

            • Was this a gift?:
            • No

            (0 of 1 customers found this review helpful)

             
            4.0

            Gets the job done.

            By MTB or road, let's do this

            from Panama City Beach, FL

            About Me Avid Cyclist

            Verified Reviewer

            Pros

            • Durable
            • Easy To Install
            • Lightweight

            Cons

              Best Uses

              • Mountain Biking

              Comments about Shimano XT SM-BB70 Bottom Bracket:

              It gets the job done.

              • Was this a gift?:
              • No
               
              5.0

              Great Upgrade

              By RigFlipper

              from Lansing, MI

              About Me Casual/ Recreational

              Verified Reviewer

              Pros

              • Attractive Design
              • Durable
              • Easy To Install
              • Lightweight

              Cons

                Best Uses

                • Mountain Biking

                Comments about Shimano XT SM-BB70 Bottom Bracket:

                Very Stiff and a huge weight difference. Replaced an old ISIS BB with this. Was really surprised at how easy it was to install, although I did need to pickup the correct BB wrench from Park (BBT-9).

                • Was this a gift?:
                • No

                (0 of 1 customers found this review helpful)

                 
                5.0

                Dont think get this one

                By TVDOG

                from RIVERSIDE

                About Me Casual/ Recreational

                Verified Buyer

                Pros

                • Durable
                • Easy To Install
                • Lightweight

                Cons

                  Best Uses

                  • Casual Riding
                  • Mountain Biking
                  • Racing

                  Comments about Shimano XT SM-BB70 Bottom Bracket:

                  loved it so much i put the same one back on smooth like butter after a short brake in readj. it to my liking a have not looked back yet

                  • Was this a gift?:
                  • No

                  (1 of 2 customers found this review helpful)

                   
                  4.0

                  smooth and light

                  By Maverick73

                  from Quito - Ecuador

                  About Me Competitive Cyclist

                  Verified Buyer

                  Pros

                  • Clear Instructions
                  • Easy To Install
                  • Lightweight

                  Cons

                  • Bearings Hard To Find
                  • Cost Of Bearings
                  • Not Enough Grease

                  Best Uses

                  • First Step To Go Pro
                  • Mountain Biking
                  • Upgrade

                  Comments about Shimano XT SM-BB70 Bottom Bracket:

                  This is a good one to start thinking in going pro... XT series matches with most of my expectations within light weight durability and performance. It's easy to install and almost maintainance free.
                  Notice that manufacturer does not recommend to dismantle it or try to fix it, but you must know that the only problem this stuff has is that bearings would get krunchi with poor maintenance and proper cleaning, but if it's so, you can find replacing bearings by half price or less and you can extract bearings off the cups and you'll have brand new bearings for one other 10000 miles!

                  • Was this a gift?:
                  • No

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Smooth

                  By Mr S

                  from Ontario, Canada

                  About Me Avid Cyclist

                  Verified Buyer

                  Pros

                  • Easy To Install
                  • Lightweight
                  • Smooth

                  Cons

                    Best Uses

                      Comments about Shimano XT SM-BB70 Bottom Bracket:

                      Used this BB along with an XT crankset and it's very smooth. Easy to install. You need the external BB tool that grips around the outside teeth.

                      • Was this a gift?:
                      • No

                      (1 of 1 customers found this review helpful)

                       
                      5.0

                      nice b/b

                      By C.Mac

                      from Hornlake,Ms.

                      About Me Avid Cyclist

                      Verified Reviewer

                      Pros

                      • Attractive Design
                      • Durable
                      • Easy To Install

                      Cons

                      • None yet

                      Best Uses

                      • Casual Riding
                      • Mountain Biking
                      • Upgrade

                      Comments about Shimano XT SM-BB70 Bottom Bracket:

                      easy to install ,quality looks great .is very smooth

                      • Was this a gift?:
                      • No

                      (1 of 1 customers found this review helpful)

                       
                      4.0

                      Solid BB

                      By Virginia MTBer

                      from Northern, VA

                      About Me Avid Cyclist

                      Verified Buyer

                      Pros

                      • Attractive Design
                      • Easy To Install
                      • Lightweight

                      Cons

                        Best Uses

                        • Mountain Biking

                        Comments about Shimano XT SM-BB70 Bottom Bracket:

                        I like the design of the Shimano MTB crankset and BB. I like this BB as it is easy for a home mechanic to maintain and replace with only a single special tool. I've used a Shimano drivetrain on all my bikes, so I can't comment for comparison on durability. I tend to get around 1200-1500 miles out of the XT BBs that I have had.

                        • Was this a gift?:
                        • No

                        Displaying reviews 1-10

                        Back to top

                        Previous | Next »

                        Jenson USA ships worldwide, including APO/FPO addresses. For a quote, simply add the items you are interested in to your shopping cart and look for the "Shipping Options" box. You don't have to login or create an account to see shipping charges.

                        Some manufacturers restrict where we can ship their products. If this item has shipping restrictions, they are listed below. If you'd like to buy an item that we cannot ship to your preferred address, we can accept your foreign credit card and ship to a USA address for you.

                        Get free shipping with your $50 purchase today when you choose Standard Shipping at checkout. Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items

                        Free Shipping Offer

                        Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

                        Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.