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Shimano SM-BB71 Road Press Fit Bottom Bracket with Inner Cover - Black, 70-118 mm

by Shimano
1.0 out of 5 stars  See all reviews (1 customer review)
RRP: 29.99
Price: 26.35 & FREE Delivery in the UK. Details
You Save: 3.64 (12%)
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Only 2 left in stock (more on the way).
Dispatched from and sold by Amazon. Gift-wrap available.
Want it Tuesday, 22 April? Choose Express delivery at checkout. Details
  • Cups are made from fibre reinforced polymer material which reduces the risk of frame noise and damage
  • Sealed cups keep out dirt and water
  • Maintenance free
  • Easy press-fit installation

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Product details

  • Boxed-product Weight: 82 g
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
    Find out more about our Delivery Rates and Returns Policy
  • Manufacturer reference: BB7141B
  • ASIN: B003O9Y9A6
  • Date first available at Amazon.co.uk: 7 Aug 2012
  • Average Customer Review: 1.0 out of 5 stars  See all reviews (1 customer review)
  • Amazon Bestsellers Rank: 323,629 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Product Description

System Requirements

continuity 2013

Product Description

Cranks and inside camps have determining influence on the whole function performance of a bicycle. A clean run, good strength conversion and high loading capacity are vital factors with a choice of a crank set. Shimano makes a big Sorti

Customer Questions & Answers

Customer Reviews

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Most Helpful Customer Reviews
1.0 out of 5 stars BB51 30 Oct 2013
Ok, so this is for a bb51, not the BB71, but they are similar items, and it may be useful to someone...

Bought the bb51 as part of a replacement crank set as the teeth had worn out on the previous crank and on the inner ring were not replaceable.
Replaced a serviceable old style bottom bracket to fit this one (as the new crank design includes the bottom bracket axel, so no choice). Previous bb had about 8,000 miles on it.

Fitted this BB51 about 600 miles ago. It is now not serviceable due to excessive wear in the bearings, means the cranks and pedals move in ways they should not.

I have disassembled the crank/bb and the play is in the bearings in the cups, all the other items are tight and not worn. The grease in the BB had a rusty tint to it, despite the bike and bb cups being non-ferrous, indicating that water was getting in to and corroding the actual bearings/race/cage.

I regularly ride on tracks, through puddles etc, but the bb has not been power washed.

So if you want a bike that you can ride after a few miles i would consider another BB system.
To me it looks like Shimano have taken a good robust BB solution and replaced it with another, much worse system.
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