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  • Shimano Deore BB51 Hollowtech II Bottom Bracket
  • Shimano Deore BB51 Hollowtech II Bottom Bracket
NOW$9.49
  • RRP$22.99
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68/73mm
  • IN STOCK(5+)

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  • right Shipping amount : $9.99
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Shimano Deore Bottom Bracket Set BB51

Genuine Shimano HollowTech II bottom bracket assembly.

Shimano Deore Bottom Bracket Set BB51 Features:

  • 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 68mm and 73mm shell
  • Durable silver anodised finish
  • Easy installation

Buy Shimano Deore Bottom Bracket Set BB51 from Chain Reaction Cycles, the worlds largest online bicycle store.

  • Colour: Black
  • Size: 68/73mm
 
Rated 3.5 out of 5 by 58 reviewers.
Rated 5 out of 5 by calidad precio excelente.Recomiendo 100% calidad precio excelente.Recomiendo 100%sin dudarlo repetiria la compra. Gracias 10 September 2014
Rated 4 out of 5 by Pedalier excelente en relacion calidad precio Pedalier excelente muy resistente y duradero a un precio muy bueno. 09 September 2014
Rated 3 out of 5 by цена отражает качество. недорогая и не самая долговечная каретка. Хватило на 3 зимних месяца. Но дёшево. 07 September 2014
Rated 1 out of 5 by It's cheap for a reason Don't expect more than 500 miles off this. It really is rubbish. 30 August 2014
Rated 4 out of 5 by Works as intended The original BB came as standard with my bike and lasted around 800 miles of singletrack, fire roads and xc before I noticed it failing. This replacement was very well priced at CRC and fitting it was pretty straight forward and easy. Although refitting the crank was tricky and needed serious encouragement (tight as). During 1st ride out (Cannock Chase) I could hear creaking coming from it and thought hammering the crank back in had done damage. Pulled everything apart and saw everything was mechanically sound. But not enough grease. Refitted with a load of grease (can't have too much) and all is fine now! Hoping to get another 800 odd miles out if this replacement, but if not at £10 it's well worth it 29 August 2014
Rated 1 out of 5 by Just Cheap Came stock with my Trek, failed/ started grinding way too soon. Around 500km I took it apart, no dirt inside, nice clean grease but it is obvious that the bearing failed on the non drive side. It is cheap to replace but I would expect more from a bearing. Just ordered the XT/ SLX one, fingers crossed. 13 August 2014
Rated 4 out of 5 by Cheap Lasts long enough for price. Good for mid range bikes 06 August 2014
Rated 5 out of 5 by Does what it sais on the tin and for the price fairly durable Been using these on one of my mountain bikes for a while. while the bearings certainly do have a finite life my last one got chewed up. Once they begin to fail they fail fairly quickly especially in gritty conditions. BUT they still last longer than the majority of internal Bottom brackets and for the price. Cannot moan about that. 31 July 2014
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8 Questions : 15 Answers

Product Q&A

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2 answers

Hi,

I have a fsa carbon SL-K crankset is that compatible on my chainset?
Age: 25 to 34
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1 year ago
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Answer: 
While the FSA MegaExo is essentially the same as the Shimano Hollowtech system, they are not listed as cross compatible; FSA Cranks are matched to specific bottom brackets; the SL-K cranks require the BB-8000 series, such as the BB-8681 linked below
Age: 25 to 34
Gender: Male
Attitude: Just for Fun
 
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1 year ago
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Answer: 
It depends on the diameter and width of the BB required for you crank. What is said on the crank box?
Age: 25 to 34
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8 months ago
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2 answers

What crank axle can you use with this BB?

1 year, 1 month ago
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Answer: 
The 'Shimano BB51 Deore Bottom Bracket' would use the Hollow 24mm Style of axle found on the likes of the following listed Chainset's;

If you were looking to order a new Chainset the versions listed would also be supplied with a new Bottom Bracket similar to the Shimano BB51 so, you wouldn't need to order one separately.
1 year, 1 month ago
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Answer: 
24mm diameter
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8 months ago
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2 answers

Will this work with M610 crankset?

Age: 25 to 34
Gender: Male
Attitude: Just for Fun
5 months, 2 weeks ago
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Answer: 
Yes this will work with any BB thats Hollowtech 2
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4 months, 1 week ago
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Answer: 
Yep, this bottom bracket is fine with the M610 crankset.
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5 months, 2 weeks ago
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and in case it is not, which BB should I order?
sorry for bothering, I'm 99% sure it is compatible but as I'm ordering from BRAZIL I'd rather be 100% sure!
Age: 55 to 64
Gender: Male
Attitude: Just for Fun
11 months ago
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SÃO PAULO,BR
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Answer: 
This bottom bracket is suitable for all Shimano Hollowtech II chainsets including the FC-M542.
11 months ago
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Answer: 
100% yes
Age: 25 to 34
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8 months ago
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Gender: Male
6 months ago
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Clane,IE
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Answer: 
Yep, it has english thread.
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6 months ago
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Answer: 
Yes BSA English Thread, right side (drive side) first then the left!
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6 months ago
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Will these support my shimano acera 9 speed crank? And if supports then how much change in the performance? Does it worth the upgrade?
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1 month, 2 weeks ago
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Answer: 
Unfortunately not. The Acera uses a different system. Upgrading to a Deore crank would be a better option, because it comes with the BB with the crank. That would give a much better performance improvement.
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1 month, 2 weeks ago
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Answer: 
No, Acera and Deore use two different bottom bracket types. It would be better to upgrade to a Deore crank as that comes with a bottom bracket. Plus a Deore crank will give much better performance
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1 month, 2 weeks ago
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Age: 25 to 34
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Attitude: On the up
7 months ago
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Answer: 
Нет. Вам придётся менять и шатуны тоже. К тому же нужно будет торцевать кареточный узел. Эта каретка не имеет своего вала, т.к. рассчитана на систему с интегрированным валом (это когда вал интегрирован в паук, т.е. в левый шатун, на котором закреплены звезды).
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7 months ago
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Answer: 
подойдёт, если резьба английская(не итальянская).
Age: 45 to 54
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1 week, 6 days ago
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Has staff answer
 
1 answer

What does the GK mean ?

What does the letters GK mean ?
Will it be able to replace one that has KD ?
8 months ago
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Plymouth,GB
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Answer: 
This marking bares no significance to the fitment of the bottom bracket cups and likely is a manufacturing process code.

As long as the spacing required is also of 68/73mm for a HollowTech II crankset then this bottom bracket will be fine.
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8 months ago
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