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Shimano Deore Outboard Bearing Bottom Bracket English Thread BB51B

Customer Reviews (1)
5 / 5| Write your review
Product Reviews (1)
Questions & Answers (1) Q & A
- Genuine Shimano HollowTech II bottom bracket assembly
- Set includes left and right hand cups, spacers, inner cover, and inner O-rings
- Sealed cups keep out dirt and water
- Maintenance free
- Compatible with 68 mm and 73 mm shell
- Durable silver anodised finish
- Easy installation
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Product Reviews (1)
Overall Product Rating 5 / 5
Shimano Deore Outboard Bearing
01 Jun 2011
5 / 5
I recommend this product
Proseasy to fit, less the 30mins from beginning to the end
Incedibly easy to fit with the right tool. Despite what the box says they can, and should, be serviced particularly chain side. Remove the dust seal, tap out the bearing, clean, grease and reassemble
Questions & Answers (1)
What Is The Difference Between The Bb51B And Bb52B Bottom Brackets?
30 Aug 2016
I find that BB51B bottom brackets only last around 6 months, so is the BB52B a straight upgrade?
SJS Customer Service:

The BB52B is just the newer version, there has been no major improvements as far as we're aware, just small updates.